--- OA_place: publisher OA_type: diamond PlanS_conform: '1' _id: '20494' abstract: - lang: eng text: The James Webb Space Telescope is revolutionising our ability to understand the host galaxies and local environments of high-z quasars. Here we obtain a comprehensive understanding of the host galaxy of the z = 7.08 quasar J1120+0641 by combining NIRSpec integral field spectroscopy with NIRCam photometry of the host continuum emission. Our emission-line maps reveal that this quasar host is undergoing a merger with a bright companion galaxy. The quasar host and the companion have similar dynamical masses of ∼1010 M⊙, suggesting that this is a major galaxy interaction. Through detailed quasar subtraction and SED fitting using the NIRCam data, we obtained an estimate of the host stellar mass of M* = (3.0−1.4+2.5) × 109 M⊙, with M∗ = (2.7−0.5+0.5) × 109 M⊙ for the companion galaxy. Using the Hβ Balmer line, we estimated a virial black hole mass of MBH = (1.9−1.1+2.9) × 109 M⊙. Thus, J1120+0641 has an extreme black hole–stellar mass ratio of MBH/M* = 0.63−0.31+0.54, which is ∼3 dex larger than expected by the local scaling relations between black hole and stellar mass. J1120+0641 is powered by an overmassive black hole with the highest reported black hole–stellar mass ratio in a quasar host that is currently undergoing a major merger. These new insights highlight the power of JWST for measuring and understanding these extreme first quasars. acknowledgement: 'This work is based on observations made with the NASA/ESA/CSA James Webb Space Telescope. The data were obtained from the Mikulski Archive for Space Telescopes at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-03127 for JWST. These observations are associated with program #1263, as part of the Galaxy Assembly with NIRSpec Integral Field Spectroscopy GTO program, and program #1243, as part of the Emission-line galaxies and Intergalactic Gas in the Epoch of Reionization GTO program. We thank Ignas Juodžbalis for helping with the compilation of BH–stellar mass measurements from the literature. We thank the referee for their helpful feedback. MAM acknowledges support by the Laboratory Directed Research and Development program of Los Alamos National Laboratory under project number 20240752PRD1. The project leading to this publication has received support from ORP, that is funded by the European Union’s Horizon 2020 research and innovation programme under grant agreement No 101004719 [ORP]. MP, SA and BRdP acknowledge grant PID2021-127718NB-I00 funded by the Spanish Ministry of Science and Innovation/State Agency of Research (MICIN/AEI/ 10.13039/501100011033). JS, RM and FDE acknowledge support by the Science and Technology Facilities Council (STFC), from the ERC Advanced Grant 695671 “QUENCH”. JS and FDE acknowledge the UKRI Frontier Research grant RISEandFALL. RM acknowledges funding from a research professorship from the Royal Society. HÜ acknowledges funding by the European Union (ERC APEX, 101164796). Views and opinions expressed are however those of the authors only and do not necessarily reflect those of the European Union or the European Research Council Executive Agency. Neither the European Union nor the granting authority can be held responsible for them. SC and GV acknowledge support from the European Union (ERC, WINGS,101040227). AJB and GCJ acknowledge funding from the “FirstGalaxies” Advanced Grant from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (Grant agreement No. 789056). DK acknowledges funding from JSPS KAKENHI Grant Number JP21K13956. This research has made use of the Astrophysics Data System, funded by NASA under Cooperative Agreement 80NSSC21M00561, QFitsView (Ott 2012), and SAOImageDS9, developed by Smithsonian Astrophysical Observatory. This paper made use of Python packages and software AstroPy (Astropy Collaboration 2013), jwst (Bushouse et al. 2022), Matplotlib (Hunter 2007), NumPy (van der Walt et al. 2011), Pandas (Pandas Development Team 2020), Photutils (Bradley et al. 2018), Prospector (Johnson et al. 2021), psfMC (Mechtley 2019), Regions (Bradley et al. 2022), SciPy (Virtanen et al. 2020), Seaborn (Waskom 2021), Spectral Cube (Ginsburg et al. 2019), QDeblend3D (Husemann et al. 2013, 2014), QubeSpec (https://github.com/honzascholtz/Qubespec), and WebbPSF (Perrin et al. 2015).' article_number: A50 article_processing_charge: No article_type: original arxiv: 1 author: - first_name: Madeline A. full_name: Marshall, Madeline A. last_name: Marshall - first_name: Minghao full_name: Yue, Minghao last_name: Yue - first_name: Anna Christina full_name: Eilers, Anna Christina last_name: Eilers - first_name: Jan full_name: Scholtz, Jan last_name: Scholtz - first_name: Michele full_name: Perna, Michele last_name: Perna - first_name: Chris J. full_name: Willott, Chris J. last_name: Willott - first_name: Roberto full_name: Maiolino, Roberto last_name: Maiolino - first_name: Hannah full_name: Übler, Hannah last_name: Übler - first_name: Santiago full_name: Arribas, Santiago last_name: Arribas - first_name: Andrew J. full_name: Bunker, Andrew J. last_name: Bunker - first_name: Stephane full_name: Charlot, Stephane last_name: Charlot - first_name: Bruno full_name: Rodríguez Del Pino, Bruno last_name: Rodríguez Del Pino - first_name: Torsten full_name: Böker, Torsten last_name: Böker - first_name: Stefano full_name: Carniani, Stefano last_name: Carniani - first_name: Chiara full_name: Circosta, Chiara last_name: Circosta - first_name: Giovanni full_name: Cresci, Giovanni last_name: Cresci - first_name: Francesco full_name: D'Eugenio, Francesco last_name: D'Eugenio - first_name: Gareth C. full_name: Jones, Gareth C. last_name: Jones - first_name: Giacomo full_name: Venturi, Giacomo last_name: Venturi - first_name: Rongmon full_name: Bordoloi, Rongmon last_name: Bordoloi - first_name: Daichi full_name: Kashino, Daichi last_name: Kashino - first_name: Ruari full_name: Mackenzie, Ruari last_name: Mackenzie - first_name: Jorryt J full_name: Matthee, Jorryt J id: 7439a258-f3c0-11ec-9501-9df22fe06720 last_name: Matthee orcid: 0000-0003-2871-127X - first_name: Rohan full_name: Naidu, Rohan last_name: Naidu - first_name: Robert A. full_name: Simcoe, Robert A. last_name: Simcoe citation: ama: 'Marshall MA, Yue M, Eilers AC, et al. GA-NIFS and EIGER: A merging quasar host at z = 7 with an overmassive black hole. Astronomy & Astrophysics. 2025;702. doi:10.1051/0004-6361/202452650' apa: 'Marshall, M. A., Yue, M., Eilers, A. C., Scholtz, J., Perna, M., Willott, C. J., … Simcoe, R. A. (2025). GA-NIFS and EIGER: A merging quasar host at z = 7 with an overmassive black hole. Astronomy & Astrophysics. EDP Sciences. https://doi.org/10.1051/0004-6361/202452650' chicago: 'Marshall, Madeline A., Minghao Yue, Anna Christina Eilers, Jan Scholtz, Michele Perna, Chris J. Willott, Roberto Maiolino, et al. “GA-NIFS and EIGER: A Merging Quasar Host at z = 7 with an Overmassive Black Hole.” Astronomy & Astrophysics. EDP Sciences, 2025. https://doi.org/10.1051/0004-6361/202452650.' ieee: 'M. A. Marshall et al., “GA-NIFS and EIGER: A merging quasar host at z = 7 with an overmassive black hole,” Astronomy & Astrophysics, vol. 702. EDP Sciences, 2025.' ista: 'Marshall MA, Yue M, Eilers AC, Scholtz J, Perna M, Willott CJ, Maiolino R, Übler H, Arribas S, Bunker AJ, Charlot S, Rodríguez Del Pino B, Böker T, Carniani S, Circosta C, Cresci G, D’Eugenio F, Jones GC, Venturi G, Bordoloi R, Kashino D, Mackenzie R, Matthee JJ, Naidu R, Simcoe RA. 2025. GA-NIFS and EIGER: A merging quasar host at z = 7 with an overmassive black hole. Astronomy & Astrophysics. 702, A50.' mla: 'Marshall, Madeline A., et al. “GA-NIFS and EIGER: A Merging Quasar Host at z = 7 with an Overmassive Black Hole.” Astronomy & Astrophysics, vol. 702, A50, EDP Sciences, 2025, doi:10.1051/0004-6361/202452650.' short: M.A. Marshall, M. Yue, A.C. Eilers, J. Scholtz, M. Perna, C.J. Willott, R. Maiolino, H. Übler, S. Arribas, A.J. Bunker, S. Charlot, B. Rodríguez Del Pino, T. Böker, S. Carniani, C. Circosta, G. Cresci, F. D’Eugenio, G.C. Jones, G. Venturi, R. Bordoloi, D. Kashino, R. Mackenzie, J.J. Matthee, R. Naidu, R.A. Simcoe, Astronomy & Astrophysics 702 (2025). date_created: 2025-10-19T22:01:32Z date_published: 2025-10-01T00:00:00Z date_updated: 2026-02-16T12:13:28Z day: '01' ddc: - '520' department: - _id: JoMa doi: 10.1051/0004-6361/202452650 external_id: arxiv: - '2410.11035' isi: - '001588901100004' file: - access_level: open_access checksum: ae625d3ebda7483bd61ecb3c497d0de9 content_type: application/pdf creator: dernst date_created: 2025-10-20T07:42:18Z date_updated: 2025-10-20T07:42:18Z file_id: '20497' file_name: 2025_AstronomyAstrophysics_Marshall.pdf file_size: 3871156 relation: main_file success: 1 file_date_updated: 2025-10-20T07:42:18Z fulldoi: https://doi.org/10.1051/0004-6361/202452650 has_accepted_license: '1' intvolume: ' 702' isi: 1 language: - iso: eng license: https://creativecommons.org/licenses/by/4.0/ month: '10' oa: 1 oa_version: Published Version publication: Astronomy & Astrophysics publication_identifier: eissn: - 1432-0746 issn: - 0004-6361 publication_status: published publisher: EDP Sciences quality_controlled: '1' scopus_import: '1' status: public title: 'GA-NIFS and EIGER: A merging quasar host at z = 7 with an overmassive black hole' tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 702 year: '2025' ... --- OA_place: publisher OA_type: hybrid PlanS_conform: '1' _id: '20544' abstract: - lang: eng text: The physical nature of little red dots (LRDs), a population of compact red galaxies revealed by JWST, remains unclear. Photometric samples were constructed from varying selection criteria with limited spectroscopic follow-up available to test intrinsic spectral shapes and the prevalence of broad emission lines. We used the RUBIES survey, a large spectroscopic program with wide color-morphology coverage and homogeneous data quality, to systematically analyze the emission-line kinematics, spectral shapes, and morphologies of ∼1500 galaxies at z > 3.1. We identified broad Balmer lines via a novel fitting approach that simultaneously models NIRSpec/PRISM and G395M spectra, yielding 80 broad-line sources with 28 (35%) at z > 6. A large subpopulation naturally emerged from the broad Balmer line sources, with 36 exhibiting v-shaped UV-to-optical continua and a dominant point source component in the rest-optical; we define these as spectroscopic LRDs, constituting the largest such sample to date. Strikingly, the spectroscopic LRD population is largely recovered when either a broad line or rest-optical point source is required in combination with a v-shaped continuum, suggesting an inherent link between these three defining characteristics. We compared the spectroscopic LRD sample to published photometric searches. Although these selections have high accuracy, 80%−95% down to F444W < 26.5, only 50%−80% of the RUBIES LRDs were photometrically identified, depending on the selection criteria used. The remainder were missed due to a mixture of faint rest-UV photometry, comparatively blue rest-optical colors, or highly uncertain photometric redshifts. Our findings highlight that well-selected spectroscopic campaigns are essential for robust LRD identification, while photometric criteria require refinement to capture the full population. acknowledgement: 'Open access funding provided by Max Planck Society. We would like to thank the anonymous reviewer for their constructive comments which improved the final manuscript. REH acknowledges support by the German Aerospace Center (DLR) and the Federal Ministry for Economic Affairs and Energy (BMWi) through program 50OR2403 ‘RUBIES’. TBM was supported by a CIERA Postdoctoral Fellowship. This work used computing resources provided by Northwestern University and the Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA). This research was supported in part through the computational resources and staff contributions provided for the Quest high performance computing facility at Northwestern University which is jointly supported by the Office of the Provost, the Office for Research, and Northwestern University Information Technology. Support for this work was provided by The Brinson Foundation through a Brinson Prize Fellowship grant. The Cosmic Dawn Center is funded by the Danish National Research Foundation (DNRF) under grant #140. This work has received funding from the Swiss State Secretariat for Education, Research and Innovation (SERI) under contract number MB22.00072, as well as from the Swiss National Science Foundation (SNSF) through project grant 200020_207349. Support for this work for RPN was provided by NASA through the NASA Hubble Fellowship grant HST-HF2-51515.001-A awarded by the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Incorporated, under NASA contract NAS5-26555. The work of CCW is supported by NOIRLab, which is managed by the Association of Universities for Research in Astronomy (AURA) under a cooperative agreement with the National Science Foundation. The data products presented herein were retrieved from the Dawn JWST Archive (DJA). DJA is an initiative of the Cosmic Dawn Center (DAWN). This work is based in part on observations made with the NASA/ESA/CSA James Webb Space Telescope. The data were obtained from the Mikulski Archive for Space Telescopes at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-03127 for JWST. These observations are associated with programs numbers 1345, 1837, 2234, 2279, 2514, 2750, 3990 and 4233. Support for program no. 4233 was provided by NASA through a grant from the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-03127. The authors acknowledge the CEERS, PRIMER, PANORAMIC, and BEACONS teams for developing their observing program with a zero-exclusive-access period. We acknowledge the use of the following software packages which were instrumental in the development of this work: Astropy Astropy Collaboration 2013, 2018, 2022, grizli Brammer 2023a, jax Bradbury et al. 2018, jwst Bushouse et al. 2022, LaTeX Lamport 1994, MatplotlibHunter 2007, msaexp Brammer 2023b, msafit de Graaff et al. 2024, NumPy Oliphant 2006; van der Walt et al. 2011; Harris et al. 2020, NumPyro Phan et al. 2019, photutils Bradley et al. 2024b, pysersic Pasha & Miller 2023, photutils Bradley et al. 2024a, sedpy Johnson 2021, Source-Extractor Bertin & Arnouts 1996, and unite Hviding 2025. This work makes use of color palettes created by Martin Krzywinski designed for colorblindness. The color palettes and more information can be found at http://mkweb.bcgsc.ca/colorblind/' article_number: A57 article_processing_charge: Yes (via OA deal) article_type: original author: - first_name: Raphael E. full_name: Hviding, Raphael E. last_name: Hviding - first_name: Anna full_name: de Graaff, Anna last_name: de Graaff - first_name: Tim B. full_name: Miller, Tim B. last_name: Miller - first_name: David J. full_name: Setton, David J. last_name: Setton - first_name: Jenny E. full_name: Greene, Jenny E. last_name: Greene - first_name: Ivo full_name: Labbé, Ivo last_name: Labbé - first_name: Gabriel full_name: Brammer, Gabriel last_name: Brammer - first_name: Rachel full_name: Bezanson, Rachel last_name: Bezanson - first_name: Leindert A. full_name: Boogaard, Leindert A. last_name: Boogaard - first_name: Nikko J. full_name: Cleri, Nikko J. last_name: Cleri - first_name: Joel full_name: Leja, Joel last_name: Leja - first_name: Michael V. full_name: Maseda, Michael V. last_name: Maseda - first_name: Ian full_name: McConachie, Ian last_name: McConachie - first_name: Jorryt J full_name: Matthee, Jorryt J id: 7439a258-f3c0-11ec-9501-9df22fe06720 last_name: Matthee orcid: 0000-0003-2871-127X - first_name: Rohan P. full_name: Naidu, Rohan P. last_name: Naidu - first_name: Pascal A. full_name: Oesch, Pascal A. last_name: Oesch - first_name: Bingjie full_name: Wang, Bingjie last_name: Wang - first_name: Katherine E. full_name: Whitaker, Katherine E. last_name: Whitaker - first_name: Christina C. full_name: Williams, Christina C. last_name: Williams citation: ama: 'Hviding RE, de Graaff A, Miller TB, et al. RUBIES: A spectroscopic census of little red dots. Astronomy & Astrophysics. 2025;702. doi:10.1051/0004-6361/202555816' apa: 'Hviding, R. E., de Graaff, A., Miller, T. B., Setton, D. J., Greene, J. E., Labbé, I., … Williams, C. C. (2025). RUBIES: A spectroscopic census of little red dots. Astronomy & Astrophysics. EDP Sciences. https://doi.org/10.1051/0004-6361/202555816' chicago: 'Hviding, Raphael E., Anna de Graaff, Tim B. Miller, David J. Setton, Jenny E. Greene, Ivo Labbé, Gabriel Brammer, et al. “RUBIES: A Spectroscopic Census of Little Red Dots.” Astronomy & Astrophysics. EDP Sciences, 2025. https://doi.org/10.1051/0004-6361/202555816.' ieee: 'R. E. Hviding et al., “RUBIES: A spectroscopic census of little red dots,” Astronomy & Astrophysics, vol. 702. EDP Sciences, 2025.' ista: 'Hviding RE, de Graaff A, Miller TB, Setton DJ, Greene JE, Labbé I, Brammer G, Bezanson R, Boogaard LA, Cleri NJ, Leja J, Maseda MV, McConachie I, Matthee JJ, Naidu RP, Oesch PA, Wang B, Whitaker KE, Williams CC. 2025. RUBIES: A spectroscopic census of little red dots. Astronomy & Astrophysics. 702, A57.' mla: 'Hviding, Raphael E., et al. “RUBIES: A Spectroscopic Census of Little Red Dots.” Astronomy & Astrophysics, vol. 702, A57, EDP Sciences, 2025, doi:10.1051/0004-6361/202555816.' short: R.E. Hviding, A. de Graaff, T.B. Miller, D.J. Setton, J.E. Greene, I. Labbé, G. Brammer, R. Bezanson, L.A. Boogaard, N.J. Cleri, J. Leja, M.V. Maseda, I. McConachie, J.J. Matthee, R.P. Naidu, P.A. Oesch, B. Wang, K.E. Whitaker, C.C. Williams, Astronomy & Astrophysics 702 (2025). date_created: 2025-10-27T08:17:26Z date_published: 2025-10-01T00:00:00Z date_updated: 2026-03-02T09:17:21Z day: '01' ddc: - '520' department: - _id: JoMa doi: 10.1051/0004-6361/202555816 external_id: isi: - '001589731300022' file: - access_level: open_access checksum: 34d6612d80f3f0e79a8f8ac33d9286ae content_type: application/pdf creator: dernst date_created: 2025-10-27T09:16:23Z date_updated: 2025-10-27T09:16:23Z file_id: '20550' file_name: 2025_AstronomyAstrophysics_Hviding.pdf file_size: 3885322 relation: main_file success: 1 file_date_updated: 2025-10-27T09:16:23Z fulldoi: https://doi.org/10.1051/0004-6361/202555816 has_accepted_license: '1' intvolume: ' 702' isi: 1 language: - iso: eng month: '10' oa: 1 oa_version: Published Version publication: Astronomy & Astrophysics publication_identifier: eissn: - 1432-0746 issn: - 0004-6361 publication_status: published publisher: EDP Sciences quality_controlled: '1' related_material: link: - relation: erratum url: https://doi.org/10.1051/0004-6361/202659153e scopus_import: '1' status: public title: 'RUBIES: A spectroscopic census of little red dots' tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 702 year: '2025' ... --- DOAJ_listed: '1' OA_place: publisher OA_type: gold PlanS_conform: '1' _id: '20545' abstract: - lang: eng text: The H i gas distribution in damped Lyman $\alpha$ absorbers (DLAs) has remained elusive due to the point-source nature of background quasar emission. Observing DLAs against spatially extended background galaxies provides a new method for constraining their size and structure. Using the Keck Cosmic Web Imager, we present the first ‘silhouette’ image of a DLA at $z=3.34$, identified in the spectrum of a background galaxy at $z=3.61$. Although the silhouette remains unresolved due to limited spatial resolution, this represents a successful proof-of-concept for studying DLA morphology using extended background sources. Possible residual emission in the DLA trough suggests an optical depth contrast exceeding $10^7$ in the internal structure, implying a sharp edge or patchy structure. A Lyman $\alpha$ emitter (LAE) at $z_{\rm LAE}=3.3433\pm 0.0005$, consistent with the DLA redshift, is detected at an angular separation of $1{{_{.}^{\prime\prime}} }73\pm 0{{_{.}^{\prime\prime}} }28$ ($12.9\pm 2.1$ kpc). The DLA is surrounded by three galaxies within 140 kpc in projected distance and 500 km s$^{-1}$ in line-of-sight velocity, indicating that it resides in the circumgalactic medium of the LAE or within a galaxy group/protocluster environment. An O i  $\lambda 1302$ absorption at $z_{\rm OI}=3.3288\pm 0.0004$ is also detected along the line of sight. This absorber may trace metal-enriched outflow from the LAE or a gas-rich galaxy exhibiting the highest star formation activity among the surrounding galaxies. Future large spectroscopic surveys of galaxies will expand such a DLA sample, and three-dimensional spectroscopy for it will shed new light on the role of intergalactic dense gas in galaxy formation and evolution. acknowledgement: "We thank Seiji Fujimoto for discussions in the early stage of this work. We were supported by JSPS (Japan Society for the Promotion of Science) KAKENHI Grant Numbers 21H04489, 22H04939, 23H00131, 24H00002, 24K17095, 25K01038, and 25K01039. Some of the data presented herein were obtained at Keck Observatory, which is a private 501(c)3 non-profit organization operated as a scientific partnership among the California Institute of Technology,\r\nthe University of California, and the National Aeronautics and Space Administration. The Observatory was made possible by the generous financial support of the W. M. Keck Foundation. The authors wish to recognize and acknowledge the very significant cultural role and reverence that the summit of Maunakea has always had within the Native Hawaiian community. We are most fortunate to have the opportunity to conduct observations from this\r\nmountain. This research made use of MONTAGE. It is funded by the National Science Foundation under Grant Number ACI-1440620, and was previously funded by the National Aeronautics and Space Administration’s Earth Science Technology Office, Computation\r\nTechnologies Project, underCooperative Agreement Number NCC5-626 between NASA and the California Institute of Technology." article_processing_charge: Yes article_type: original author: - first_name: Fuga full_name: Komori, Fuga last_name: Komori - first_name: Akio K full_name: Inoue, Akio K last_name: Inoue - first_name: Ken full_name: Mawatari, Ken last_name: Mawatari - first_name: Yuma full_name: Sugahara, Yuma last_name: Sugahara - first_name: Hideki full_name: Umehata, Hideki last_name: Umehata - first_name: Rhythm full_name: Shimakawa, Rhythm last_name: Shimakawa - first_name: Satoshi full_name: Yamanaka, Satoshi last_name: Yamanaka - first_name: Takuya full_name: Hashimoto, Takuya last_name: Hashimoto - first_name: Jorryt J full_name: Matthee, Jorryt J id: 7439a258-f3c0-11ec-9501-9df22fe06720 last_name: Matthee orcid: 0000-0003-2871-127X - first_name: Toru full_name: Misawa, Toru last_name: Misawa citation: ama: Komori F, Inoue AK, Mawatari K, et al. The first direct imaging of the silhouette of a damped Lyman α system along the line-of-sight to a background galaxy. Monthly Notices of the Royal Astronomical Society. 2025;543(3):2943-2957. doi:10.1093/mnras/staf1622 apa: Komori, F., Inoue, A. K., Mawatari, K., Sugahara, Y., Umehata, H., Shimakawa, R., … Misawa, T. (2025). The first direct imaging of the silhouette of a damped Lyman α system along the line-of-sight to a background galaxy. Monthly Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/staf1622 chicago: Komori, Fuga, Akio K Inoue, Ken Mawatari, Yuma Sugahara, Hideki Umehata, Rhythm Shimakawa, Satoshi Yamanaka, Takuya Hashimoto, Jorryt J Matthee, and Toru Misawa. “The First Direct Imaging of the Silhouette of a Damped Lyman α System along the Line-of-Sight to a Background Galaxy.” Monthly Notices of the Royal Astronomical Society. Oxford University Press, 2025. https://doi.org/10.1093/mnras/staf1622. ieee: F. Komori et al., “The first direct imaging of the silhouette of a damped Lyman α system along the line-of-sight to a background galaxy,” Monthly Notices of the Royal Astronomical Society, vol. 543, no. 3. Oxford University Press, pp. 2943–2957, 2025. ista: Komori F, Inoue AK, Mawatari K, Sugahara Y, Umehata H, Shimakawa R, Yamanaka S, Hashimoto T, Matthee JJ, Misawa T. 2025. The first direct imaging of the silhouette of a damped Lyman α system along the line-of-sight to a background galaxy. Monthly Notices of the Royal Astronomical Society. 543(3), 2943–2957. mla: Komori, Fuga, et al. “The First Direct Imaging of the Silhouette of a Damped Lyman α System along the Line-of-Sight to a Background Galaxy.” Monthly Notices of the Royal Astronomical Society, vol. 543, no. 3, Oxford University Press, 2025, pp. 2943–57, doi:10.1093/mnras/staf1622. short: F. Komori, A.K. Inoue, K. Mawatari, Y. Sugahara, H. Umehata, R. Shimakawa, S. Yamanaka, T. Hashimoto, J.J. Matthee, T. Misawa, Monthly Notices of the Royal Astronomical Society 543 (2025) 2943–2957. date_created: 2025-10-27T08:18:07Z date_published: 2025-09-25T00:00:00Z date_updated: 2025-12-01T15:07:43Z day: '25' ddc: - '520' department: - _id: JoMa doi: 10.1093/mnras/staf1622 external_id: isi: - '001592326700001' file: - access_level: open_access checksum: d3190e974ce771e96c4c16ee98abb82a content_type: application/pdf creator: dernst date_created: 2025-10-27T09:06:51Z date_updated: 2025-10-27T09:06:51Z file_id: '20549' file_name: 2025_MonthlyNoticesRAS_Komori.pdf file_size: 4864160 relation: main_file success: 1 file_date_updated: 2025-10-27T09:06:51Z fulldoi: https://doi.org/10.1093/mnras/staf1622 has_accepted_license: '1' intvolume: ' 543' isi: 1 issue: '3' language: - iso: eng month: '09' oa: 1 oa_version: Published Version page: 2943-2957 publication: Monthly Notices of the Royal Astronomical Society publication_identifier: eissn: - 1365-2966 issn: - 0035-8711 publication_status: published publisher: Oxford University Press quality_controlled: '1' scopus_import: '1' status: public title: The first direct imaging of the silhouette of a damped Lyman α system along the line-of-sight to a background galaxy tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 543 year: '2025' ... --- OA_place: publisher OA_type: diamond PlanS_conform: '1' _id: '20589' abstract: - lang: eng text: "Context. This paper investigates the star formation histories (SFHs) of a sample of massive galaxies (M⋆ ≥ 1010 M⊙) in the redshift range 1 < z < 4.5.\r\nMethods. We analyzed spectro-photometric data, combining broadband photometry from HST and JWST with low-resolution grism spectroscopy from JWST/NIRISS, obtained as part of the MIRI Deep Imaging Survey program. SFHs were derived through spectral energy distribution fitting using two independent codes, BAGPIPES and synthesizer, under various SFH assumptions. This approach enables a comprehensive assessment of the biases introduced by different modeling choices.\r\nResults. The inclusion of NIRISS spectroscopy, even with its low resolution, significantly improves constraints on key physical parameters, such as the mass-weighted stellar age (tM) and formation redshift (zform), by narrowing their posterior distributions. The massive galaxies in our sample exhibit rapid stellar mass assembly, forming 50% of their mass between 3 ≤ z ≤ 9. The highest inferred formation redshifts are compatible with elevated star formation efficiencies (ϵ) at early epochs. Nonparametric SFHs generally imply an earlier and slower mass assembly compared to parametric forms, highlighting the sensitivity of inferred formation timescales to the chosen SFH model–particularly for galaxies at z < 2. We find that quiescent galaxies are, on average, older (tM ∼ 1.1 Gyr) and assembled more rapidly at earlier times than their star-forming counterparts. These findings support the “downsizing” scenario, in which more massive and passive systems form earlier and more efficiently." acknowledgement: MA acknowledges financial support from Comunidad de Madrid under Atracción de Talento grant 2020-T2/TIC-19971. This work has made use of the Rainbow Cosmological Surveys Database, which is operated by the Centro de Astrobiología (CAB/INTA), partnered with the University of California Observatories at Santa Cruz (UCO/Lick,UCSC). The project that gave rise to these results received the support of a fellowship from the “la Caixa” Foundation (ID 100010434). The fellowship code is LCF/BQ/PR24/12050015. LC acknowledges support from grants PID2022-139567NB-I00 and PIB2021-127718NB-I00 funded by the Spanish Ministry of Science and Innovation/State Agency of Research MCIN/AEI/10.13039/501100011033 and by “ERDF A way of making Europe”. This work is based on observations made with the NASA/ ESA/CSA JWST. The data were obtained from the Mikulski Archive for Space Telescopes (MAST) at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-03127 for JWST. article_number: A224 article_processing_charge: No article_type: original arxiv: 1 author: - first_name: M. full_name: Annunziatella, M. last_name: Annunziatella - first_name: P. G. full_name: P’Erez-Gonz’Alez, P. G. last_name: P’Erez-Gonz’Alez - first_name: J. full_name: Álvarez-Márquez, J. last_name: Álvarez-Márquez - first_name: L. full_name: Costantin, L. last_name: Costantin - first_name: Edoardo full_name: Iani, Edoardo id: 4053390a-6b68-11ef-9828-a3b8adef8d0a last_name: Iani orcid: 0000-0001-8386-3546 - first_name: Unknown full_name: Labiano, Unknown last_name: Labiano - first_name: P. full_name: Rinaldi, P. last_name: Rinaldi - first_name: L. full_name: Boogaard, L. last_name: Boogaard - first_name: R. A. full_name: Meyer, R. A. last_name: Meyer - first_name: G. full_name: Östlin, G. last_name: Östlin - first_name: L. full_name: Colina, L. last_name: Colina - first_name: J. full_name: Melinder, J. last_name: Melinder - first_name: I. full_name: Jermann, I. last_name: Jermann - first_name: S. full_name: Gillman, S. last_name: Gillman - first_name: D. full_name: Langeroodi, D. last_name: Langeroodi - first_name: J. full_name: Hjorth, J. last_name: Hjorth - first_name: A. full_name: Alonso-Herrero, A. last_name: Alonso-Herrero - first_name: A. full_name: Eckart, A. last_name: Eckart - first_name: F. full_name: Walter, F. last_name: Walter - first_name: P. P. full_name: Van Der Werf, P. P. last_name: Van Der Werf - first_name: A. full_name: Bik, A. last_name: Bik - first_name: F. full_name: Peißker, F. last_name: Peißker - first_name: K. I. full_name: Caputi, K. I. last_name: Caputi - first_name: M. full_name: García-Marín, M. last_name: García-Marín - first_name: G. full_name: Wright, G. last_name: Wright - first_name: T. R. full_name: Greve, T. R. last_name: Greve citation: ama: 'Annunziatella M, P’Erez-Gonz’Alez PG, Álvarez-Márquez J, et al. MIDIS: Unveiling the star formation history in massive galaxies at 1 < z < 4.5 with spectro-photometric analysis. Astronomy & Astrophysics. 2025;702. doi:10.1051/0004-6361/202453298' apa: 'Annunziatella, M., P’Erez-Gonz’Alez, P. G., Álvarez-Márquez, J., Costantin, L., Iani, E., Labiano, U., … Greve, T. R. (2025). MIDIS: Unveiling the star formation history in massive galaxies at 1 < z < 4.5 with spectro-photometric analysis. Astronomy & Astrophysics. EDP Sciences. https://doi.org/10.1051/0004-6361/202453298' chicago: 'Annunziatella, M., P. G. P’Erez-Gonz’Alez, J. Álvarez-Márquez, L. Costantin, Edoardo Iani, Unknown Labiano, P. Rinaldi, et al. “MIDIS: Unveiling the Star Formation History in Massive Galaxies at 1 < z < 4.5 with Spectro-Photometric Analysis.” Astronomy & Astrophysics. EDP Sciences, 2025. https://doi.org/10.1051/0004-6361/202453298.' ieee: 'M. Annunziatella et al., “MIDIS: Unveiling the star formation history in massive galaxies at 1 < z < 4.5 with spectro-photometric analysis,” Astronomy & Astrophysics, vol. 702. EDP Sciences, 2025.' ista: 'Annunziatella M, P’Erez-Gonz’Alez PG, Álvarez-Márquez J, Costantin L, Iani E, Labiano U, Rinaldi P, Boogaard L, Meyer RA, Östlin G, Colina L, Melinder J, Jermann I, Gillman S, Langeroodi D, Hjorth J, Alonso-Herrero A, Eckart A, Walter F, Van Der Werf PP, Bik A, Peißker F, Caputi KI, García-Marín M, Wright G, Greve TR. 2025. MIDIS: Unveiling the star formation history in massive galaxies at 1 < z < 4.5 with spectro-photometric analysis. Astronomy & Astrophysics. 702, A224.' mla: 'Annunziatella, M., et al. “MIDIS: Unveiling the Star Formation History in Massive Galaxies at 1 < z < 4.5 with Spectro-Photometric Analysis.” Astronomy & Astrophysics, vol. 702, A224, EDP Sciences, 2025, doi:10.1051/0004-6361/202453298.' short: M. Annunziatella, P.G. P’Erez-Gonz’Alez, J. Álvarez-Márquez, L. Costantin, E. Iani, U. Labiano, P. Rinaldi, L. Boogaard, R.A. Meyer, G. Östlin, L. Colina, J. Melinder, I. Jermann, S. Gillman, D. Langeroodi, J. Hjorth, A. Alonso-Herrero, A. Eckart, F. Walter, P.P. Van Der Werf, A. Bik, F. Peißker, K.I. Caputi, M. García-Marín, G. Wright, T.R. Greve, Astronomy & Astrophysics 702 (2025). date_created: 2025-11-02T23:01:34Z date_published: 2025-10-24T00:00:00Z date_updated: 2026-02-16T12:14:12Z day: '24' ddc: - '520' department: - _id: JoMa doi: 10.1051/0004-6361/202453298 external_id: arxiv: - '2508.16951' isi: - '001600932400021' file: - access_level: open_access checksum: 0cd0c3fc75b7f6589088a2b7bd60c0ed content_type: application/pdf creator: dernst date_created: 2025-11-04T09:36:30Z date_updated: 2025-11-04T09:36:30Z file_id: '20600' file_name: 2025_AstronomyAstrophysics_Annunziatella.pdf file_size: 5107702 relation: main_file success: 1 file_date_updated: 2025-11-04T09:36:30Z fulldoi: https://doi.org/10.1051/0004-6361/202453298 has_accepted_license: '1' intvolume: ' 702' isi: 1 language: - iso: eng month: '10' oa: 1 oa_version: Published Version publication: Astronomy & Astrophysics publication_identifier: eissn: - 1432-0746 issn: - 0004-6361 publication_status: published publisher: EDP Sciences quality_controlled: '1' scopus_import: '1' status: public title: 'MIDIS: Unveiling the star formation history in massive galaxies at 1 < z < 4.5 with spectro-photometric analysis' tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 702 year: '2025' ... --- DOAJ_listed: '1' OA_place: publisher OA_type: gold PlanS_conform: '1' _id: '20649' abstract: - lang: eng text: Ionized proximity zones around luminous quasars provide a unique laboratory to characterize the Lyα emission lines from z > 6 galaxies without significant attenuation from the intergalactic medium (IGM). However, Lyα line measurements for galaxies within high-redshift quasars’ proximity zones have been rare so far. Here we present deep spectroscopic observations obtained with the NIRSpec/Micro-Shutter Assembly (MSA) instrument on the James Webb Space Telescope of galaxies in two z > 6 quasar fields. We measure the Lyα line fluxes for 50 galaxies at 6 < z < 7 with UV absolute magnitude M UV < −19 (median M UV = −19.97), among which 15 are located near the luminous quasars, i.e., within Δv < 2500 km s−1. We find that galaxies near the quasars show significant flux blueward of the systemic Lyα wavelength, and have higher Lyα equivalent width compared to galaxies at similar redshifts that are not located within the quasars’ environment. Our result indicates little or no redshift evolution for the Lyα emitter fraction from z ∼ 6.4 to z ∼ 5. Leveraging the low IGM opacity in the quasars’ vicinity, we evaluate the Lyα escape fraction (f esc Ly α) of high-redshift galaxies. Our analysis suggests that galaxies at 〈z〉 ≈ 6.4 have an average f esc Ly α = 0.14 ± 0.04. This value is consistent with reionization models where the Lyman continuum escape fraction is low ( fescLyC ≲ 0.1 ) for luminous galaxies, and where the most luminous galaxies have only a minor contribution to the total ionizing photon budget. © 2025. The Author(s). Published by the American Astronomical Society. acknowledgement: "We thank the referee for valuable comments. This work is based on observations made with the NASA/ESA/CSA James Webb Space Telescope. The data were obtained from the Mikulski Archive for Space Telescopes at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-03127 for JWST. These observations are associated with program ID #3117 and #4713. Support for\r\nthis work was provided by NASA through the NASA Hubble Fellowship grant HST-HF2-51515.001-A awarded by the Space Telescope Science Institute, which is operated by the\r\nAssociation of Universities for Research in Astronomy, Incorporated, under NASA contract NAS5-26555." article_number: L12 article_processing_charge: Yes article_type: original arxiv: 1 author: - first_name: Minghao full_name: Yue, Minghao last_name: Yue - first_name: Anna Christina full_name: Eilers, Anna Christina last_name: Eilers - first_name: Jorryt J full_name: Matthee, Jorryt J id: 7439a258-f3c0-11ec-9501-9df22fe06720 last_name: Matthee orcid: 0000-0003-2871-127X - first_name: Rohan P. full_name: Naidu, Rohan P. last_name: Naidu - first_name: Rongmon full_name: Bordoloi, Rongmon last_name: Bordoloi - first_name: Frederick B. full_name: Davies, Frederick B. last_name: Davies - first_name: Joseph F. full_name: Hennawi, Joseph F. last_name: Hennawi - first_name: Daichi full_name: Kashino, Daichi last_name: Kashino - first_name: Ruari full_name: Mackenzie, Ruari last_name: Mackenzie - first_name: Robert A. full_name: Simcoe, Robert A. last_name: Simcoe citation: ama: Yue M, Eilers AC, Matthee JJ, et al. Escape fractions from unattenuated Lyα emitters around luminous z > 6 quasars. The Astrophysical Journal Letters. 2025;993(1). doi:10.3847/2041-8213/ae0e0e apa: Yue, M., Eilers, A. C., Matthee, J. J., Naidu, R. P., Bordoloi, R., Davies, F. B., … Simcoe, R. A. (2025). Escape fractions from unattenuated Lyα emitters around luminous z > 6 quasars. The Astrophysical Journal Letters. IOP Publishing. https://doi.org/10.3847/2041-8213/ae0e0e chicago: Yue, Minghao, Anna Christina Eilers, Jorryt J Matthee, Rohan P. Naidu, Rongmon Bordoloi, Frederick B. Davies, Joseph F. Hennawi, Daichi Kashino, Ruari Mackenzie, and Robert A. Simcoe. “Escape Fractions from Unattenuated Lyα Emitters around Luminous z > 6 Quasars.” The Astrophysical Journal Letters. IOP Publishing, 2025. https://doi.org/10.3847/2041-8213/ae0e0e. ieee: M. Yue et al., “Escape fractions from unattenuated Lyα emitters around luminous z > 6 quasars,” The Astrophysical Journal Letters, vol. 993, no. 1. IOP Publishing, 2025. ista: Yue M, Eilers AC, Matthee JJ, Naidu RP, Bordoloi R, Davies FB, Hennawi JF, Kashino D, Mackenzie R, Simcoe RA. 2025. Escape fractions from unattenuated Lyα emitters around luminous z > 6 quasars. The Astrophysical Journal Letters. 993(1), L12. mla: Yue, Minghao, et al. “Escape Fractions from Unattenuated Lyα Emitters around Luminous z > 6 Quasars.” The Astrophysical Journal Letters, vol. 993, no. 1, L12, IOP Publishing, 2025, doi:10.3847/2041-8213/ae0e0e. short: M. Yue, A.C. Eilers, J.J. Matthee, R.P. Naidu, R. Bordoloi, F.B. Davies, J.F. Hennawi, D. Kashino, R. Mackenzie, R.A. Simcoe, The Astrophysical Journal Letters 993 (2025). date_created: 2025-11-16T23:01:24Z date_published: 2025-11-01T00:00:00Z date_updated: 2026-02-16T12:45:16Z day: '01' ddc: - '520' department: - _id: JoMa doi: 10.3847/2041-8213/ae0e0e external_id: arxiv: - '2507.05381' isi: - '001600890100001' file: - access_level: open_access checksum: 11d35c1c52c000f8c14bc6de2e9f4b3f content_type: application/pdf creator: dernst date_created: 2025-11-24T13:18:34Z date_updated: 2025-11-24T13:18:34Z file_id: '20680' file_name: 2025_AstrophysicalJour_Yue.pdf file_size: 39736710 relation: main_file success: 1 file_date_updated: 2025-11-24T13:18:34Z fulldoi: https://doi.org/10.3847/2041-8213/ae0e0e has_accepted_license: '1' intvolume: ' 993' isi: 1 issue: '1' language: - iso: eng month: '11' oa: 1 oa_version: Published Version publication: The Astrophysical Journal Letters publication_identifier: eissn: - 2041-8213 issn: - 2041-8205 publication_status: published publisher: IOP Publishing quality_controlled: '1' scopus_import: '1' status: public title: Escape fractions from unattenuated Lyα emitters around luminous z > 6 quasars tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 993 year: '2025' ... --- DOAJ_listed: '1' OA_place: publisher OA_type: gold PlanS_conform: '1' _id: '20660' abstract: - lang: eng text: "We used observations from the JWST Emission Line Survey (JELS) to measure the half-light radii (re) of 23 Hα-emitting starforming (SF) galaxies at z = 6.1 in the PRIMER/COSMOS field. Galaxy sizes were measured in JWST near-infrared camera observations in rest-frame Hα (tracing recent star formation) with the F466N and F470N narrow-band filters from JELS, and\r\ncompared against rest-R- and V -band (tracing established stellar populations) and near-ultraviolet sizes. We find a size–stellar mass(re − M∗) relationship with a slope that is consistent with literature values at lower redshifts, though offset to lowersizes. We observe a large scatter in re at low stellar mass (M∗ < 10^8.4 Mo) which we believe is the result of bursty star formation histories (SFHs) of SF galaxies at the Epoch of Reionization (EoR). We find that the stellar and ionized gas components are similar in size at z = 6.1. The evidence of already-established stellar components in these Hα emitters (HAEs) indicates previous episodes of star formation have occurred. As such, following other JELS studies finding our HAEs are undergoing a current burst of star formation, we believe our results indicate that SF galaxies at the end of the EoR have already experienced a bursty SFH. From our re − M∗ relationship, we find re,F444W = 0.76 ± 0.46 kpc for fixed stellar mass M∗ = 10^9.25 M, which is in agreement with other observations and simulations of SF galaxies in the literature. We find a close-pair (major) merger fraction of (fmaj. merger =0.44 ± 0.22) fmerger = 0.43 ± 0.11 for galaxy separations d <~ 25 kpc, which is in agreement with other z ≈ 6 studies." acknowledgement: "This work makes use of ASTROPY, 7 a community-developed core PYTHON package for Astronomy (Astropy Collaboration 2013, 2018, 2022), as well as the NUMPY (C. R. Harris et al. 2020) and SCIPY (P.Virtanen et al. 2020) packages(see also T. E. Oliphant 2007). All plots\r\nwere created using the MATPLOTLIB 2D graphics PYTHON package (J. D. Hunter 2007). Conversions between redshift and lookback time in our selected cosmological model were done using the Javascript cosmological calculator from E. L. Wright (2006).8 The authors would like to thank the anonymous referee for their constructive comments and suggestions which have strengthened the analysis of this work and improved the paper. The authors also gratefully acknowledge Ian Smail for providing valuable feedback and helping to guide the science of this paper. This work is based on observations made with the NASA/ESA/CSA James Webb Space\r\nTelescope. The data were obtained from the Mikulski Archive for Space Telescopes9 at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-03127 for JWST. These observations are associated with programs GO no. 2321 (JELS) and GO no. 1837 (PRIMER). The authors acknowledge the PRIMER team for developing their observing program with a zero-exclusive-access period. HMOS acknowledges support from an STFC PhD studentship and the Faculty of Science and Technology at Lancaster University. PNB is grateful for support from the UK STFC\r\nvia grants ST/V000594/1 and ST/Y000951/1. JSD acknowledges the support of the Royal Society via a Royal Society Research Professorship. LOF acknowledges funding by ANID BECAS/DOCTORADO NACIONAL 21220499.CLH acknowledges support from the Oxford\r\nHintze Centre for Astrophysical Surveys which is funded through generous support from the Hintze family charity foundation. EI gratefully acknowledge financial support from ANID – MILENIO –NCN2024 112 and ANID FONDECYT Regular 1221846. For the purpose of open access, the authors have applied a Creative Commons attribution (CC BY) licence to any author accepted manuscript version arising." article_processing_charge: Yes article_type: original author: - first_name: H. M.O. full_name: Stephenson, H. M.O. last_name: Stephenson - first_name: J. P. full_name: Stott, J. P. last_name: Stott - first_name: C. A. full_name: Pirie, C. A. last_name: Pirie - first_name: K. J. full_name: Duncan, K. J. last_name: Duncan - first_name: D. J. full_name: Mcleod, D. J. last_name: Mcleod - first_name: P. N. full_name: Best, P. N. last_name: Best - first_name: M. full_name: Brinch, M. last_name: Brinch - first_name: M. full_name: Clausen, M. last_name: Clausen - first_name: R. K. full_name: Cochrane, R. K. last_name: Cochrane - first_name: J. S. full_name: Dunlop, J. S. last_name: Dunlop - first_name: S. R. full_name: Flury, S. R. last_name: Flury - first_name: J. E. full_name: Geach, J. E. last_name: Geach - first_name: C. L. full_name: Hale, C. L. last_name: Hale - first_name: E. full_name: Ibar, E. last_name: Ibar - first_name: Zefeng full_name: Li, Zefeng last_name: Li - first_name: Jorryt J full_name: Matthee, Jorryt J id: 7439a258-f3c0-11ec-9501-9df22fe06720 last_name: Matthee orcid: 0000-0003-2871-127X - first_name: R. J. full_name: Mclure, R. J. last_name: Mclure - first_name: L. full_name: Ossa-Fuentes, L. last_name: Ossa-Fuentes - first_name: A. L. full_name: Patrick, A. L. last_name: Patrick - first_name: D. full_name: Sobral, D. last_name: Sobral - first_name: A. M. full_name: Swinbank, A. M. last_name: Swinbank citation: ama: 'Stephenson HMO, Stott JP, Pirie CA, et al. The JWST Emission Line Survey (JELS): The sizes and merger fraction of star-forming galaxies during the Epoch of Reionization. Monthly Notices of the Royal Astronomical Society. 2025;544(2):1412-1431. doi:10.1093/mnras/staf1725' apa: 'Stephenson, H. M. O., Stott, J. P., Pirie, C. A., Duncan, K. J., Mcleod, D. J., Best, P. N., … Swinbank, A. M. (2025). The JWST Emission Line Survey (JELS): The sizes and merger fraction of star-forming galaxies during the Epoch of Reionization. Monthly Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/staf1725' chicago: 'Stephenson, H. M.O., J. P. Stott, C. A. Pirie, K. J. Duncan, D. J. Mcleod, P. N. Best, M. Brinch, et al. “The JWST Emission Line Survey (JELS): The Sizes and Merger Fraction of Star-Forming Galaxies during the Epoch of Reionization.” Monthly Notices of the Royal Astronomical Society. Oxford University Press, 2025. https://doi.org/10.1093/mnras/staf1725.' ieee: 'H. M. O. Stephenson et al., “The JWST Emission Line Survey (JELS): The sizes and merger fraction of star-forming galaxies during the Epoch of Reionization,” Monthly Notices of the Royal Astronomical Society, vol. 544, no. 2. Oxford University Press, pp. 1412–1431, 2025.' ista: 'Stephenson HMO, Stott JP, Pirie CA, Duncan KJ, Mcleod DJ, Best PN, Brinch M, Clausen M, Cochrane RK, Dunlop JS, Flury SR, Geach JE, Hale CL, Ibar E, Li Z, Matthee JJ, Mclure RJ, Ossa-Fuentes L, Patrick AL, Sobral D, Swinbank AM. 2025. The JWST Emission Line Survey (JELS): The sizes and merger fraction of star-forming galaxies during the Epoch of Reionization. Monthly Notices of the Royal Astronomical Society. 544(2), 1412–1431.' mla: 'Stephenson, H. M. O., et al. “The JWST Emission Line Survey (JELS): The Sizes and Merger Fraction of Star-Forming Galaxies during the Epoch of Reionization.” Monthly Notices of the Royal Astronomical Society, vol. 544, no. 2, Oxford University Press, 2025, pp. 1412–31, doi:10.1093/mnras/staf1725.' short: H.M.O. Stephenson, J.P. Stott, C.A. Pirie, K.J. Duncan, D.J. Mcleod, P.N. Best, M. Brinch, M. Clausen, R.K. Cochrane, J.S. Dunlop, S.R. Flury, J.E. Geach, C.L. Hale, E. Ibar, Z. Li, J.J. Matthee, R.J. Mclure, L. Ossa-Fuentes, A.L. Patrick, D. Sobral, A.M. Swinbank, Monthly Notices of the Royal Astronomical Society 544 (2025) 1412–1431. date_created: 2025-11-23T23:01:37Z date_published: 2025-12-01T00:00:00Z date_updated: 2025-12-01T15:25:11Z day: '01' ddc: - '520' department: - _id: JoMa doi: 10.1093/mnras/staf1725 external_id: isi: - '001611415800001' file: - access_level: open_access checksum: ddb3f429d2246bbf536efb4b0e52f3a8 content_type: application/pdf creator: dernst date_created: 2025-11-24T10:35:15Z date_updated: 2025-11-24T10:35:15Z file_id: '20678' file_name: 2025_MonthlyNoticesRAS_Stephenson.pdf file_size: 3625308 relation: main_file success: 1 file_date_updated: 2025-11-24T10:35:15Z fulldoi: https://doi.org/10.1093/mnras/staf1725 has_accepted_license: '1' intvolume: ' 544' isi: 1 issue: '2' language: - iso: eng month: '12' oa: 1 oa_version: Published Version page: 1412-1431 publication: Monthly Notices of the Royal Astronomical Society publication_identifier: eissn: - 1365-2966 issn: - 0035-8711 publication_status: published publisher: Oxford University Press quality_controlled: '1' scopus_import: '1' status: public title: 'The JWST Emission Line Survey (JELS): The sizes and merger fraction of star-forming galaxies during the Epoch of Reionization' tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 544 year: '2025' ... --- DOAJ_listed: '1' OA_place: publisher OA_type: gold PlanS_conform: '1' _id: '20661' abstract: - lang: eng text: "We analyse James Webb Space Telescope (JWST) Near Infrared Imager and Slitless Spectrograph (NIRISS) and Near Infrared Spectrograph (NIRSpec) spectroscopic observations in the Abell 2744 galaxy cluster field. From approximately 120 candidates, we identify 12 objects with at least two prominent emission lines among [O II] λ3727, H β λ4861, [O III] λ4959, [O III] λ5007, and H α λ6563 that are spectroscopically confirmed by both instruments. Our key findings reveal systematic differences between the two spectrographs based on source morphology and shutter aperture placement. Compact objects show comparable or higher\r\nintegrated flux in NIRSpec relative to NIRISS (within 1σ uncertainties), while extended sources consistently display higher flux in NIRISS measurements. This pattern reflects NIRSpec’s optimal coverage for compact objects while potentially undersampling extended sources. Quantitative analysis demonstrates that NIRSpec recovers at least 63 per cent of NIRISS-measured flux when the slit covers >15 per cent of the source or when Re < 1 kpc. For lower coverage or larger effective radii, the recovered flux varies from 24 per cent to 63 per cent. When studying the H α λ6563/[O III] λ5007 emission line ratio, we observe that\r\nmeasurements from these different spectrographs can vary by up to ∼0.3 dex, with significant implications for metallicity and star formation rate characterizations for individual galaxies. These results highlight the importance of considering instrumental effects when combining multi-instrument spectroscopic data and demonstrate that source morphology critically influences flux\r\nrecovery between slit-based and slitless spectroscopic modes in JWST observations." acknowledgement: "This research was supported in part by the Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D), through project number CE170100013. This research was supported in part by The Dr Albert Shimmins Fund through the Albert Shimmins Postgraduate Writing Up Award (University of Melbourne). This work is based on observations made with the NASA/ESA/CSA James Webb Space Telescope. The data were obtained from the Mikulski Archive for Space Telescopes at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5–03127 for JWST. These observations are associated with programmes JWST-ERS-1324, JWST-GO-2561, and JWST-DDT-2756. BV and PW acknowledge support from the INAF Large Grant 2022 ‘Extragalactic Surveys with JWST’ (PI Pentericci), the INAF Mini\r\nGrant ‘1.05.24.07.01 RSN1: Spatially-Resolved Near-IR Emission of Intermediate-Redshift Jellyfish Galaxies’ (PI Watson), and are supported by the European Union – NextGenerationEU RFF M4C2 1.1 PRIN 2022 project 2022ZSL4BL INSIGHT. MB acknowledges support from the ERC Advanced Grant FIRSTLIGHT and Slovenian national research agency ARIS through grants N1-0238 and P1-0188. " article_processing_charge: Yes article_type: original arxiv: 1 author: - first_name: Nicolò full_name: Dalmasso, Nicolò last_name: Dalmasso - first_name: Peter J. full_name: Watson, Peter J. last_name: Watson - first_name: Tommaso full_name: Treu, Tommaso last_name: Treu - first_name: Michele full_name: Trenti, Michele last_name: Trenti - first_name: Benedetta full_name: Vulcani, Benedetta last_name: Vulcani - first_name: Themiya full_name: Nanayakkara, Themiya last_name: Nanayakkara - first_name: Maruša full_name: Bradač, Maruša last_name: Bradač - first_name: Tucker full_name: Jones, Tucker last_name: Jones - first_name: Kristan full_name: Boyett, Kristan last_name: Boyett - first_name: Xin full_name: Wang, Xin last_name: Wang - first_name: Sara full_name: Mascia, Sara id: edaf889c-c7cd-11ef-ab1b-bb28c431bd29 last_name: Mascia - first_name: Laura full_name: Pentericci, Laura last_name: Pentericci citation: ama: 'Dalmasso N, Watson PJ, Treu T, et al. Quantifying spectroscopic flux variations between JWST NIRISS and NIRSpec: Slit losses in emission line measurements of z ∼ 1-3 galaxies. Monthly Notices of the Royal Astronomical Society. 2025;544(2):1915-1925. doi:10.1093/mnras/staf1837' apa: 'Dalmasso, N., Watson, P. J., Treu, T., Trenti, M., Vulcani, B., Nanayakkara, T., … Pentericci, L. (2025). Quantifying spectroscopic flux variations between JWST NIRISS and NIRSpec: Slit losses in emission line measurements of z ∼ 1-3 galaxies. Monthly Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/staf1837' chicago: 'Dalmasso, Nicolò, Peter J. Watson, Tommaso Treu, Michele Trenti, Benedetta Vulcani, Themiya Nanayakkara, Maruša Bradač, et al. “Quantifying Spectroscopic Flux Variations between JWST NIRISS and NIRSpec: Slit Losses in Emission Line Measurements of z ∼ 1-3 Galaxies.” Monthly Notices of the Royal Astronomical Society. Oxford University Press, 2025. https://doi.org/10.1093/mnras/staf1837.' ieee: 'N. Dalmasso et al., “Quantifying spectroscopic flux variations between JWST NIRISS and NIRSpec: Slit losses in emission line measurements of z ∼ 1-3 galaxies,” Monthly Notices of the Royal Astronomical Society, vol. 544, no. 2. Oxford University Press, pp. 1915–1925, 2025.' ista: 'Dalmasso N, Watson PJ, Treu T, Trenti M, Vulcani B, Nanayakkara T, Bradač M, Jones T, Boyett K, Wang X, Mascia S, Pentericci L. 2025. Quantifying spectroscopic flux variations between JWST NIRISS and NIRSpec: Slit losses in emission line measurements of z ∼ 1-3 galaxies. Monthly Notices of the Royal Astronomical Society. 544(2), 1915–1925.' mla: 'Dalmasso, Nicolò, et al. “Quantifying Spectroscopic Flux Variations between JWST NIRISS and NIRSpec: Slit Losses in Emission Line Measurements of z ∼ 1-3 Galaxies.” Monthly Notices of the Royal Astronomical Society, vol. 544, no. 2, Oxford University Press, 2025, pp. 1915–25, doi:10.1093/mnras/staf1837.' short: N. Dalmasso, P.J. Watson, T. Treu, M. Trenti, B. Vulcani, T. Nanayakkara, M. Bradač, T. Jones, K. Boyett, X. Wang, S. Mascia, L. Pentericci, Monthly Notices of the Royal Astronomical Society 544 (2025) 1915–1925. date_created: 2025-11-23T23:01:38Z date_published: 2025-12-01T00:00:00Z date_updated: 2025-12-01T15:23:21Z day: '01' ddc: - '520' department: - _id: JoMa doi: 10.1093/mnras/staf1837 external_id: arxiv: - '2510.27036' isi: - '001615620500001' file: - access_level: open_access checksum: 2caff0a3b81fed114408377323298b43 content_type: application/pdf creator: dernst date_created: 2025-11-24T09:02:04Z date_updated: 2025-11-24T09:02:04Z file_id: '20674' file_name: 2025_MonthlyNoticesRAS_Dalmasso.pdf file_size: 1952887 relation: main_file success: 1 file_date_updated: 2025-11-24T09:02:04Z fulldoi: https://doi.org/10.1093/mnras/staf1837 has_accepted_license: '1' intvolume: ' 544' isi: 1 issue: '2' language: - iso: eng month: '12' oa: 1 oa_version: Published Version page: 1915-1925 publication: Monthly Notices of the Royal Astronomical Society publication_identifier: eissn: - 1365-2966 issn: - 0035-8711 publication_status: published publisher: Oxford University Press quality_controlled: '1' scopus_import: '1' status: public title: 'Quantifying spectroscopic flux variations between JWST NIRISS and NIRSpec: Slit losses in emission line measurements of z ∼ 1-3 galaxies' tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 544 year: '2025' ... --- OA_place: publisher OA_type: hybrid _id: '18631' abstract: - lang: eng text: Within the established framework of structure formation, galaxies start as systems of low stellar mass and gradually grow into far more massive galaxies. The existence of massive galaxies in the first billion years of the Universe, as suggested by recent observations, seems to challenge this model, as such galaxies would require highly efficient conversion of baryons into stars. An even greater challenge in this epoch is the existence of massive galaxies that have already ceased forming stars. However, robust detections of early massive quiescent galaxies have been challenging due to the coarse wavelength sampling of photometric surveys. Here we report the spectroscopic confirmation with the James Webb Space Telescope of the quiescent galaxy RUBIES-EGS-QG-1 at redshift z = 4.90, 1.2 billion years after the Big Bang. Deep stellar absorption features in the spectrum reveal that the stellar mass of the galaxy of 1011 M⊙ formed in a short 200 Myr burst of star formation, after which star formation activity dropped rapidly and persistently. According to current galaxy formation models, systems with such rapid stellar mass growth and early quenching are too rare to plausibly occur in the small area probed spectroscopically with JWST. Instead, the discovery of RUBIES-EGS-QG-1 implies that early massive quiescent galaxies can be quenched earlier or exhaust gas available for star formation more efficiently than assumed at present. acknowledgement: We thank V. Buat, D. Burgarella and J. Zavala for sharing their NOEMA data and constraints on the dust-obscured star formation of RUBIES-EGS-QG-1. This work is partially based on observations carried out under project number W20CK with the IRAM NOEMA Interferometer. IRAM is supported by INSU/CNRS (France), MPG (Germany) and IGN (Spain). We thank C. Lagos for providing measurements from the SHARK simulation. This research was supported by the International Space Science Institute (ISSI) in Bern, through ISSI International Team Project No. 562. M.V.M., J.L. and B.W. acknowledge funding support from NASA through JWST-GO-4233. The Cosmic Dawn Center is funded by the Danish National Research Foundation (Grant No. DNRF140 to G.B., P.A.O. and K.E.W.). This work has received funding from the Swiss State Secretariat for Education, Research and Innovation (Contract No. MB22.00072) and the Swiss National Science Foundation (Project Grant No. 200020_207349 to P.A.O.). Support for this work was provided by the Brinson Foundation through a Brinson Prize Fellowship grant (D.J.S.). K.A.S. is a NHFP Hubble Fellow. Support for this work was provided by NASA through the NASA Hubble Fellowship Grant No. HST-HF2-51515.001-A awarded by the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Incorporated, under NASA contract NAS 5-26555 (R.P.N.). This work is based on observations made with the NASA/ESA/CSA JWST. The data were obtained from the Mikulski Archive for Space Telescopes at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-03127 for JWST. The observations in this work are associated with programmes ERS-1345, GO-2234, DDT-2750 and GO-4233. We gratefully acknowledge the CEERS and DDT-2750 teams for developing their observing programme with a zero-exclusive-access period. Open access funding provided by Max Planck Society. article_processing_charge: Yes (via OA deal) article_type: original author: - first_name: Anna full_name: De Graaff, Anna last_name: De Graaff - first_name: David J. full_name: Setton, David J. last_name: Setton - first_name: Gabriel full_name: Brammer, Gabriel last_name: Brammer - first_name: Sam full_name: Cutler, Sam last_name: Cutler - first_name: Katherine A. full_name: Suess, Katherine A. last_name: Suess - first_name: Ivo full_name: Labbé, Ivo last_name: Labbé - first_name: Joel full_name: Leja, Joel last_name: Leja - first_name: Andrea full_name: Weibel, Andrea last_name: Weibel - first_name: Michael V. full_name: Maseda, Michael V. last_name: Maseda - first_name: Katherine E. full_name: Whitaker, Katherine E. last_name: Whitaker - first_name: Rachel full_name: Bezanson, Rachel last_name: Bezanson - first_name: Leindert A. full_name: Boogaard, Leindert A. last_name: Boogaard - first_name: Nikko J. full_name: Cleri, Nikko J. last_name: Cleri - first_name: Gabriella full_name: De Lucia, Gabriella last_name: De Lucia - first_name: Marijn full_name: Franx, Marijn last_name: Franx - first_name: Jenny E. full_name: Greene, Jenny E. last_name: Greene - first_name: Michaela full_name: Hirschmann, Michaela last_name: Hirschmann - first_name: Jorryt J full_name: Matthee, Jorryt J id: 7439a258-f3c0-11ec-9501-9df22fe06720 last_name: Matthee orcid: 0000-0003-2871-127X - first_name: Ian full_name: Mcconachie, Ian last_name: Mcconachie - first_name: Rohan P. full_name: Naidu, Rohan P. last_name: Naidu - first_name: Pascal A. full_name: Oesch, Pascal A. last_name: Oesch - first_name: Sedona H. full_name: Price, Sedona H. last_name: Price - first_name: Hans Walter full_name: Rix, Hans Walter last_name: Rix - first_name: Francesco full_name: Valentino, Francesco last_name: Valentino - first_name: Bingjie full_name: Wang, Bingjie last_name: Wang - first_name: Christina C. full_name: Williams, Christina C. last_name: Williams citation: ama: De Graaff A, Setton DJ, Brammer G, et al. Efficient formation of a massive quiescent galaxy at redshift 4.9. Nature Astronomy. 2025;9:280-292. doi:10.1038/s41550-024-02424-3 apa: De Graaff, A., Setton, D. J., Brammer, G., Cutler, S., Suess, K. A., Labbé, I., … Williams, C. C. (2025). Efficient formation of a massive quiescent galaxy at redshift 4.9. Nature Astronomy. Springer Nature. https://doi.org/10.1038/s41550-024-02424-3 chicago: De Graaff, Anna, David J. Setton, Gabriel Brammer, Sam Cutler, Katherine A. Suess, Ivo Labbé, Joel Leja, et al. “Efficient Formation of a Massive Quiescent Galaxy at Redshift 4.9.” Nature Astronomy. Springer Nature, 2025. https://doi.org/10.1038/s41550-024-02424-3. ieee: A. De Graaff et al., “Efficient formation of a massive quiescent galaxy at redshift 4.9,” Nature Astronomy, vol. 9. Springer Nature, pp. 280–292, 2025. ista: De Graaff A, Setton DJ, Brammer G, Cutler S, Suess KA, Labbé I, Leja J, Weibel A, Maseda MV, Whitaker KE, Bezanson R, Boogaard LA, Cleri NJ, De Lucia G, Franx M, Greene JE, Hirschmann M, Matthee JJ, Mcconachie I, Naidu RP, Oesch PA, Price SH, Rix HW, Valentino F, Wang B, Williams CC. 2025. Efficient formation of a massive quiescent galaxy at redshift 4.9. Nature Astronomy. 9, 280–292. mla: De Graaff, Anna, et al. “Efficient Formation of a Massive Quiescent Galaxy at Redshift 4.9.” Nature Astronomy, vol. 9, Springer Nature, 2025, pp. 280–92, doi:10.1038/s41550-024-02424-3. short: A. De Graaff, D.J. Setton, G. Brammer, S. Cutler, K.A. Suess, I. Labbé, J. Leja, A. Weibel, M.V. Maseda, K.E. Whitaker, R. Bezanson, L.A. Boogaard, N.J. Cleri, G. De Lucia, M. Franx, J.E. Greene, M. Hirschmann, J.J. Matthee, I. Mcconachie, R.P. Naidu, P.A. Oesch, S.H. Price, H.W. Rix, F. Valentino, B. Wang, C.C. Williams, Nature Astronomy 9 (2025) 280–292. das_tickbox: '1' dataavailabilitystatement: The unprocessed JWST data are available through the Mikulski Archive for Space Telescopes. Reduced data from JWST underlying this work are publicly available in the DJA (https://dawn-cph.github.io/dja/), as described in refs. 9,46. date_created: 2024-12-08T23:01:56Z date_published: 2025-02-01T00:00:00Z date_updated: 2026-10-15T09:40:28Z day: '01' ddc: - '520' department: - _id: JoMa doi: 10.1038/s41550-024-02424-3 external_id: isi: - '001420347200001' pmid: - '39990236' file: - access_level: open_access checksum: fb9109951dfe72f08c04c72cd7cfba69 content_type: application/pdf creator: dernst date_created: 2025-04-16T08:53:59Z date_updated: 2025-04-16T08:53:59Z file_id: '19574' file_name: 2025_NatureAstronomy_deGraaff.pdf file_size: 2034513 relation: main_file success: 1 file_date_updated: 2025-04-16T08:53:59Z fulldoi: https://doi.org/10.1038/s41550-024-02424-3 has_accepted_license: '1' intvolume: ' 9' isi: 1 language: - iso: eng month: '02' oa: 1 oa_version: Published Version page: 280-292 pmid: 1 publication: Nature Astronomy publication_identifier: eissn: - 2397-3366 publication_status: published publisher: Springer Nature quality_controlled: '1' researchdata_availability: yes scopus_import: '1' status: public supplementarymaterial: yes title: Efficient formation of a massive quiescent galaxy at redshift 4.9 tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 9 year: '2025' ... --- DOAJ_listed: '1' OA_place: publisher OA_type: gold PlanS_conform: '1' _id: '21064' abstract: - lang: eng text: The James Webb Space Telescope (JWST) is revolutionizing our knowledge of z > 5 galaxies and their actively accreting black holes. Using the JWST Cycle 1 Treasury program Ultradeep NIRSpec and NIRCam Observations before the Epoch of Reionization (UNCOVER) in the lensing field A2744, we report the identification of a sample of little red dots at 3 < zphot < 7 that likely contain highly reddened accreting supermassive black holes. Using a NIRCam-only selection to F444W < 27.7 mag, we find 26 sources over the ∼45 arcmin^2 field that are blue in F115W − F200W ∼ 0 (or βUV ∼ –2.0 for fλ ∝ λ^β), red in F200W − F444W = 1−4 (βopt ∼ +2.0), and are dominated by a point-source-like central component. Of the 20 sources with deep Atacama Large Millimeter/submillimeter Array (ALMA) 1.2 mm coverage, none are detected individually or in a stack. For the majority of the sample, spectral energy distribution fits to the JWST+ALMA observations prefer models with hot dust rather than obscured star formation to reproduce the red NIRCam colors and ALMA 1.2 mm nondetections. While compact dusty star formation cannot be ruled out, the combination of extremely small sizes (〈re〉 ≈ 50 pc after correction for magnification), red rest-frame optical slopes, and hot dust can be explained by reddened broad-line active galactic nuclei (AGNs). Our targets have faint M1450 ≈ −14 to −18 mag but inferred bolometric luminosities of Lbol = 10^43–10^46 erg s^−1, reflecting their obscured nature. If the candidates are confirmed as AGNs with upcoming UNCOVER spectroscopy, then we have found an abundant population of reddened luminous AGNs that are at least ten times more numerous than UV-luminous AGNs at the same intrinsic bolometric luminosity. acknowledgement: 'I.L. acknowledges support from Australian Research Council Future Fellowship FT220100798. J.E.G. and A.D.G acknowledge support from NSF/AAG grant #1007094, and J.E.G. also acknowledges support from NSF/AAG grant #1007052. L.J.F. and A.Z. acknowledge support by Grant No. 2020750 from the United States–Israel Binational Science Foundation (BSF) and grant No. 2109066 from the United States National Science Foundation (NSF), and by the Ministry of Science & Technology of Israel. The Cosmic Dawn Center is funded by the Danish National Research Foundation (DNRF) under grant #140. This work has received funding from the Swiss State Secretariat for Education, Research and Innovation (SERI) under contract number MB22.00072, as well as from the Swiss National Science Foundation (SNSF) through project grant 200020_207349. P.D. acknowledges support from the NWO grant 016.VIDI.189.162 (“ODIN”) and from the European Commission’s and University of Groningen’s CO-FUND Rosalind Franklin program. R.P.N. acknowledges funding from JWST programs GO-1933 and GO-2279. Support for this work was provided by NASA through the NASA Hubble Fellowship grant HST-HF2-51515.001-A awarded by the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Incorporated, under NASA contract NAS5-26555. This paper makes use of the ALMA data: ADS/JAO. ALMA #2022.1.00073.S, 2018.1.00035.L, and 2013.1.00999.S. ALMA is a partnership of ESO (representing its member states), NSF (USA) and NINS (Japan), together with NRC (Canada), MOST and ASIAA (Taiwan), and KASI (Republic of Korea), in cooperation with the Republic of Chile. The Joint ALMA Observatory is operated by ESO, AUI/NRAO and NAOJ. The research of C.C.W. is supported by NOIRLab, which is managed by the Association of Universities for Research in Astronomy (AURA) under a cooperative agreement with the National Science Foundation.' article_number: '92' article_processing_charge: Yes article_type: original arxiv: 1 author: - first_name: Ivo full_name: Labbe, Ivo last_name: Labbe - first_name: Jenny E. full_name: Greene, Jenny E. last_name: Greene - first_name: Rachel full_name: Bezanson, Rachel last_name: Bezanson - first_name: Seiji full_name: Fujimoto, Seiji last_name: Fujimoto - first_name: Lukas J. full_name: Furtak, Lukas J. last_name: Furtak - first_name: Andy D. full_name: Goulding, Andy D. last_name: Goulding - first_name: Jorryt J full_name: Matthee, Jorryt J id: 7439a258-f3c0-11ec-9501-9df22fe06720 last_name: Matthee orcid: 0000-0003-2871-127X - first_name: Rohan P. full_name: Naidu, Rohan P. last_name: Naidu - first_name: Pascal A. full_name: Oesch, Pascal A. last_name: Oesch - first_name: Hakim full_name: Atek, Hakim last_name: Atek - first_name: Gabriel full_name: Brammer, Gabriel last_name: Brammer - first_name: Iryna full_name: Chemerynska, Iryna last_name: Chemerynska - first_name: Dan full_name: Coe, Dan last_name: Coe - first_name: Sam E. full_name: Cutler, Sam E. last_name: Cutler - first_name: Pratika full_name: Dayal, Pratika last_name: Dayal - first_name: Robert full_name: Feldmann, Robert last_name: Feldmann - first_name: Marijn full_name: Franx, Marijn last_name: Franx - first_name: Karl full_name: Glazebrook, Karl last_name: Glazebrook - first_name: Joel full_name: Leja, Joel last_name: Leja - first_name: Michael full_name: Maseda, Michael last_name: Maseda - first_name: Danilo full_name: Marchesini, Danilo last_name: Marchesini - first_name: Themiya full_name: Nanayakkara, Themiya last_name: Nanayakkara - first_name: Erica J. full_name: Nelson, Erica J. last_name: Nelson - first_name: Richard full_name: Pan, Richard last_name: Pan - first_name: Casey full_name: Papovich, Casey last_name: Papovich - first_name: Sedona H. full_name: Price, Sedona H. last_name: Price - first_name: Katherine A. full_name: Suess, Katherine A. last_name: Suess - first_name: Bingjie 冰洁 full_name: Wang, Bingjie 冰洁 last_name: Wang - first_name: John R. full_name: Weaver, John R. last_name: Weaver - first_name: Katherine E. full_name: Whitaker, Katherine E. last_name: Whitaker - first_name: Christina C. full_name: Williams, Christina C. last_name: Williams - first_name: Adi full_name: Zitrin, Adi last_name: Zitrin citation: ama: 'Labbe I, Greene JE, Bezanson R, et al. UNCOVER: Candidate red active galactic nuclei at 3 < z < 7 with JWST and ALMA. The Astrophysical Journal. 2024;978. doi:10.3847/1538-4357/ad3551' apa: 'Labbe, I., Greene, J. E., Bezanson, R., Fujimoto, S., Furtak, L. J., Goulding, A. D., … Zitrin, A. (2024). UNCOVER: Candidate red active galactic nuclei at 3 < z < 7 with JWST and ALMA. The Astrophysical Journal. IOP Publishing. https://doi.org/10.3847/1538-4357/ad3551' chicago: 'Labbe, Ivo, Jenny E. Greene, Rachel Bezanson, Seiji Fujimoto, Lukas J. Furtak, Andy D. Goulding, Jorryt J Matthee, et al. “UNCOVER: Candidate Red Active Galactic Nuclei at 3 < z < 7 with JWST and ALMA.” The Astrophysical Journal. IOP Publishing, 2024. https://doi.org/10.3847/1538-4357/ad3551.' ieee: 'I. Labbe et al., “UNCOVER: Candidate red active galactic nuclei at 3 < z < 7 with JWST and ALMA,” The Astrophysical Journal, vol. 978. IOP Publishing, 2024.' ista: 'Labbe I, Greene JE, Bezanson R, Fujimoto S, Furtak LJ, Goulding AD, Matthee JJ, Naidu RP, Oesch PA, Atek H, Brammer G, Chemerynska I, Coe D, Cutler SE, Dayal P, Feldmann R, Franx M, Glazebrook K, Leja J, Maseda M, Marchesini D, Nanayakkara T, Nelson EJ, Pan R, Papovich C, Price SH, Suess KA, Wang B冰洁, Weaver JR, Whitaker KE, Williams CC, Zitrin A. 2024. UNCOVER: Candidate red active galactic nuclei at 3 < z < 7 with JWST and ALMA. The Astrophysical Journal. 978, 92.' mla: 'Labbe, Ivo, et al. “UNCOVER: Candidate Red Active Galactic Nuclei at 3 < z < 7 with JWST and ALMA.” The Astrophysical Journal, vol. 978, 92, IOP Publishing, 2024, doi:10.3847/1538-4357/ad3551.' short: I. Labbe, J.E. Greene, R. Bezanson, S. Fujimoto, L.J. Furtak, A.D. Goulding, J.J. Matthee, R.P. Naidu, P.A. Oesch, H. Atek, G. Brammer, I. Chemerynska, D. Coe, S.E. Cutler, P. Dayal, R. Feldmann, M. Franx, K. Glazebrook, J. Leja, M. Maseda, D. Marchesini, T. Nanayakkara, E.J. Nelson, R. Pan, C. Papovich, S.H. Price, K.A. Suess, B.冰洁 Wang, J.R. Weaver, K.E. Whitaker, C.C. Williams, A. Zitrin, The Astrophysical Journal 978 (2024). date_created: 2026-01-28T15:26:12Z date_published: 2024-12-26T00:00:00Z date_updated: 2026-02-10T06:49:49Z day: '26' ddc: - '520' department: - _id: JoMa doi: 10.3847/1538-4357/ad3551 external_id: arxiv: - '2306.07320' file: - access_level: open_access checksum: 825c35ebd26e292c8a5c2bffac327854 content_type: application/pdf creator: dernst date_created: 2026-02-10T06:44:24Z date_updated: 2026-02-10T06:44:24Z file_id: '21201' file_name: 2024_AstrophysicalJourn_Labbe.pdf file_size: 5041924 relation: main_file success: 1 file_date_updated: 2026-02-10T06:44:24Z fulldoi: https://doi.org/10.3847/1538-4357/ad3551 has_accepted_license: '1' intvolume: ' 978' language: - iso: eng month: '12' oa: 1 oa_version: Published Version publication: The Astrophysical Journal publication_identifier: eissn: - 1538-4357 issn: - 0004-637X publication_status: published publisher: IOP Publishing quality_controlled: '1' scopus_import: '1' status: public title: 'UNCOVER: Candidate red active galactic nuclei at 3 < z < 7 with JWST and ALMA' tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 978 year: '2024' ... --- DOAJ_listed: '1' _id: '14852' abstract: - lang: eng text: The physical conditions giving rise to high escape fractions of ionizing radiation (LyC fesc) in star-forming galaxies – most likely protagonists of cosmic reionization – are not yet fully understood. Using the VLT/MUSE observations of ∼1400 Ly α emitters at 2.9 &lt; z &lt; 6.7, we compare stacked rest-frame UV spectra of candidates for LyC leakers and non-leakers selected based on their Ly α profiles. We find that the stacks of potential LyC leakers, i.e. galaxies with narrow, symmetric Ly α profiles with small peak separation, generally show (i) strong nebular O iii]λ1666, [Si iii]λ1883, and [C iii]λ1907 +C iii]λ1909 emission, indicating a high-ionization state of the interstellar medium (ISM); (ii) high equivalent widths of He iiλ1640 (∼1 − 3 Å), suggesting the presence of hard ionizing radiation fields; (iii) Si ii*λ1533 emission, revealing substantial amounts of neutral hydrogen off the line of sight; (iv) high C ivλλ1548,1550 to [C iii]λ1907 +C iii]λ1909 ratios (C iv/C iii] ≳0.75) , signalling the presence of low column density channels in the ISM. In contrast, the stacks with broad, asymmetric Ly α profiles with large peak separation show weak nebular emission lines, low He iiλ1640 equivalent widths (≲1 Å), and low C iv/C iii] (≲0.25), implying low-ionization states and high-neutral hydrogen column densities. Our results suggest that C iv/C iii] might be sensitive to the physical conditions that govern LyC photon escape, providing a promising tool for identification of ionizing sources among star-forming galaxies in the epoch of reionization. acknowledgement: 'We thank the anonymous referee for the constructive feedback that helped to improve the manuscript. We thank Michael Maseda, Daniel Schaerer, Charlotte Simmonds, and Rashmi Gottumukkala for useful comments and productive discussions. We also thank the organizers and participants of the 24th MUSE Science Busy Week in Leiden. IGK acknowledges an Excellence Master Fellowship granted by the Faculty of Science of the University of Geneva. This work has received funding from the Swiss State Secretariat for Education, Research and Innovation (SERI) under contract number MB22.00072, as well as from the Swiss National Science Foundation (SNSF) through project grant number 200020_207349 and SNSF Professorship grant number 190079. The Cosmic Dawn Center (DAWN) is funded by the Danish National Research Foundation under grant number 140. This paper is based on observations collected at the European Organisation for Astronomical Research in the Southern Hemisphere under ESO programmes 094.A-0289(B), 095.A-0010(A), 096.A-0045(A), 096.A-0045(B), 094.A-0205, 095.A-0240, 096.A-0090, 097.A-0160, and 098.A-0017. We made extensive use of several open-source software packages and we are thankful to the respective authors for sharing their work: NUMPY (Harris et al. 2020), ASTROPY (Astropy Collaboration 2022), MATPLOTLIB (Hunter 2007), IPYTHON (Perez & Granger 2007), and TOPCAT (Taylor 2005).' article_processing_charge: Yes article_type: original arxiv: 1 author: - first_name: Ivan full_name: Kramarenko, Ivan id: 9a9394cb-3200-11ee-973b-f5ba2a8b16e4 last_name: Kramarenko orcid: 0000-0001-5346-6048 - first_name: J full_name: Kerutt, J last_name: Kerutt - first_name: A full_name: Verhamme, A last_name: Verhamme - first_name: P A full_name: Oesch, P A last_name: Oesch - first_name: L full_name: Barrufet, L last_name: Barrufet - first_name: Jorryt J full_name: Matthee, Jorryt J id: 7439a258-f3c0-11ec-9501-9df22fe06720 last_name: Matthee orcid: 0000-0003-2871-127X - first_name: H full_name: Kusakabe, H last_name: Kusakabe - first_name: I full_name: Goovaerts, I last_name: Goovaerts - first_name: T T full_name: Thai, T T last_name: Thai citation: ama: Kramarenko I, Kerutt J, Verhamme A, et al. Linking UV spectral properties of MUSE Ly α emitters at z ≳ 3 to Lyman continuum escape. Monthly Notices of the Royal Astronomical Society. 2024;527(4):9853-9871. doi:10.1093/mnras/stad3853 apa: Kramarenko, I., Kerutt, J., Verhamme, A., Oesch, P. A., Barrufet, L., Matthee, J. J., … Thai, T. T. (2024). Linking UV spectral properties of MUSE Ly α emitters at z ≳ 3 to Lyman continuum escape. Monthly Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stad3853 chicago: Kramarenko, Ivan, J Kerutt, A Verhamme, P A Oesch, L Barrufet, Jorryt J Matthee, H Kusakabe, I Goovaerts, and T T Thai. “Linking UV Spectral Properties of MUSE Ly α Emitters at z ≳ 3 to Lyman Continuum Escape.” Monthly Notices of the Royal Astronomical Society. Oxford University Press, 2024. https://doi.org/10.1093/mnras/stad3853. ieee: I. Kramarenko et al., “Linking UV spectral properties of MUSE Ly α emitters at z ≳ 3 to Lyman continuum escape,” Monthly Notices of the Royal Astronomical Society, vol. 527, no. 4. Oxford University Press, pp. 9853–9871, 2024. ista: Kramarenko I, Kerutt J, Verhamme A, Oesch PA, Barrufet L, Matthee JJ, Kusakabe H, Goovaerts I, Thai TT. 2024. Linking UV spectral properties of MUSE Ly α emitters at z ≳ 3 to Lyman continuum escape. Monthly Notices of the Royal Astronomical Society. 527(4), 9853–9871. mla: Kramarenko, Ivan, et al. “Linking UV Spectral Properties of MUSE Ly α Emitters at z ≳ 3 to Lyman Continuum Escape.” Monthly Notices of the Royal Astronomical Society, vol. 527, no. 4, Oxford University Press, 2024, pp. 9853–71, doi:10.1093/mnras/stad3853. short: I. Kramarenko, J. Kerutt, A. Verhamme, P.A. Oesch, L. Barrufet, J.J. Matthee, H. Kusakabe, I. Goovaerts, T.T. Thai, Monthly Notices of the Royal Astronomical Society 527 (2024) 9853–9871. corr_author: '1' das_tickbox: '1' dataavailabilitystatement: Raw MUSE data cubes are available from the ESO Science Archive Facility.2 The MUSE-Wide data from the first data release, which covers 44 fields in GOODS-S/CDFS, are available on the MUSE-Wide project page.3 The MUSE HUDF data from the second data release are available via the Advanced MUSE Data products (AMUSED) web interface.4 The stacked spectra in a machine-readable format and the spectral line measurements will be shared upon request to the corresponding author. date_created: 2024-01-22T08:22:17Z date_published: 2024-02-01T00:00:00Z date_updated: 2026-10-02T11:29:18Z day: '01' ddc: - '520' department: - _id: GradSch - _id: JoMa doi: 10.1093/mnras/stad3853 external_id: arxiv: - '2305.07044' isi: - '001133672400004' file: - access_level: open_access checksum: 9d02df4035c4951cf63dee0db1e462e9 content_type: application/pdf creator: dernst date_created: 2024-01-23T12:30:45Z date_updated: 2024-01-23T12:30:45Z file_id: '14879' file_name: 2024_MNAstronomSoc_Kramarenko.pdf file_size: 4521738 relation: main_file success: 1 file_date_updated: 2024-01-23T12:30:45Z fulldoi: https://doi.org/10.1093/mnras/stad3853 has_accepted_license: '1' intvolume: ' 527' isi: 1 issue: '4' keyword: - Space and Planetary Science - Astronomy and Astrophysics language: - iso: eng month: '02' oa: 1 oa_version: Published Version page: 9853-9871 publication: Monthly Notices of the Royal Astronomical Society publication_identifier: eissn: - 1365-2966 issn: - 0035-8711 publication_status: published publisher: Oxford University Press quality_controlled: '1' researchdata_availability: upon request scopus_import: '1' status: public supplementarymaterial: no title: Linking UV spectral properties of MUSE Ly α emitters at z ≳ 3 to Lyman continuum escape tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 527 year: '2024' ... --- APC_amount: 5666,27 EUR OA_place: publisher OA_type: gold _id: '15180' abstract: - lang: eng text: Characterizing the prevalence and properties of faint active galactic nuclei (AGNs) in the early Universe is key for understanding the formation of supermassive black holes (SMBHs) and determining their role in cosmic reionization. We perform a spectroscopic search for broad Hα emitters at z ≈ 4–6 using deep JWST/NIRCam imaging and wide field slitless spectroscopy from the EIGER and FRESCO surveys. We identify 20 Hα lines at z = 4.2–5.5 that have broad components with line widths from ∼1200–3700 km s−1, contributing ∼30%–90% of the total line flux. We interpret these broad components as being powered by accretion onto SMBHs with implied masses ∼107–8M⊙. In the UV luminosity range MUV,AGN+host = −21 to −18, we measure number densities of ≈10−5 cMpc−3. This is an order of magnitude higher than expected from extrapolating quasar UV luminosity functions (LFs). Yet, such AGN are found in only <1% of star-forming galaxies at z ∼ 5. The number density discrepancy is much lower when compared to the broad Hα LF. The SMBH mass function agrees with large cosmological simulations. In two objects, we detect complex Hα profiles that we tentatively interpret as caused by absorption signatures from dense gas fueling SMBH growth and outflows. We may be witnessing early AGN feedback that will clear dust-free pathways through which more massive blue quasars are seen. We uncover a strong correlation between reddening and the fraction of total galaxy luminosity arising from faint AGN. This implies that early SMBH growth is highly obscured and that faint AGN are only minor contributors to cosmic reionization. acknowledgement: "We thank the anonymous referee for constructive comments that helped improve the manuscript. This work is based on observations made with the NASA/ESA/CSA James Webb Space Telescope. The data were obtained from the Mikulski Archive for Space Telescopes at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-03127 for JWST. These observations are associated with program Nos. 1243 and 1895. The specific observations analyzed can be accessed via doi:10.17909/4xx0-zj76. Funded by the European Union (ERC, AGENTS, 101076224). Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or the European Research Council. Neither the European Union nor the granting authority can be held responsible for them. R.P.N. acknowledges funding from JWST programs GO-1933 and GO-2279. Support for this work for R.P.N. was provided by NASA through the NASA Hubble Fellowship grant HST-HF2-51515.001-A awarded by the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Incorporated, under NASA contract NAS5-26555. Support for this work for G.I. was provided by NASA through grant JWST-GO-01895 awarded by the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555. This work has received funding from the Swiss State Secretariat for Education, Research and Innovation (SERI) under contract No. MB22.00072, as well as from the Swiss National Science Foundation (SNSF) through project grant 200020_207349. The Cosmic Dawn Center (DAWN) is funded by the Danish National Research Foundation under grant No. 140.\r\nFacility: JWST - James Webb Space Telescope, HST - Hubble Space Telescope satellite\r\nSoftware:​​​​​​​ Python, matplotlib (Hunter 2007), numpy (Harris et al. 2020), scipy (Virtanen et al. 2020), Astropy (Astropy Collaboration et al. 2013, 2018), Imfit (Erwin 2015)." article_number: '129' article_processing_charge: Yes article_type: original author: - first_name: Jorryt J full_name: Matthee, Jorryt J id: 7439a258-f3c0-11ec-9501-9df22fe06720 last_name: Matthee orcid: 0000-0003-2871-127X - first_name: Rohan P. full_name: Naidu, Rohan P. last_name: Naidu - first_name: Gabriel full_name: Brammer, Gabriel last_name: Brammer - first_name: John full_name: Chisholm, John last_name: Chisholm - first_name: Anna-Christina full_name: Eilers, Anna-Christina last_name: Eilers - first_name: Andy full_name: Goulding, Andy last_name: Goulding - first_name: Jenny full_name: Greene, Jenny last_name: Greene - first_name: Daichi full_name: Kashino, Daichi last_name: Kashino - first_name: Ivo full_name: Labbe, Ivo last_name: Labbe - first_name: Simon J. full_name: Lilly, Simon J. last_name: Lilly - first_name: Ruari full_name: Mackenzie, Ruari last_name: Mackenzie - first_name: Pascal A. full_name: Oesch, Pascal A. last_name: Oesch - first_name: Andrea full_name: Weibel, Andrea last_name: Weibel - first_name: Stijn full_name: Wuyts, Stijn last_name: Wuyts - first_name: Mengyuan full_name: Xiao, Mengyuan last_name: Xiao - first_name: Rongmon full_name: Bordoloi, Rongmon last_name: Bordoloi - first_name: Rychard full_name: Bouwens, Rychard last_name: Bouwens - first_name: Pieter full_name: van Dokkum, Pieter last_name: van Dokkum - first_name: Garth full_name: Illingworth, Garth last_name: Illingworth - first_name: Ivan full_name: Kramarenko, Ivan last_name: Kramarenko - first_name: Michael V. full_name: Maseda, Michael V. last_name: Maseda - first_name: Charlotte full_name: Mason, Charlotte last_name: Mason - first_name: Romain A. full_name: Meyer, Romain A. last_name: Meyer - first_name: Erica J. full_name: Nelson, Erica J. last_name: Nelson - first_name: Naveen A. full_name: Reddy, Naveen A. last_name: Reddy - first_name: Irene full_name: Shivaei, Irene last_name: Shivaei - first_name: Robert A. full_name: Simcoe, Robert A. last_name: Simcoe - first_name: Minghao full_name: Yue, Minghao last_name: Yue citation: ama: 'Matthee JJ, Naidu RP, Brammer G, et al. Little Red Dots: An abundant population of faint active galactic nuclei at z ∼ 5 revealed by the EIGER and FRESCO JWST surveys. The Astrophysical Journal. 2024;963(2). doi:10.3847/1538-4357/ad2345' apa: 'Matthee, J. J., Naidu, R. P., Brammer, G., Chisholm, J., Eilers, A.-C., Goulding, A., … Yue, M. (2024). Little Red Dots: An abundant population of faint active galactic nuclei at z ∼ 5 revealed by the EIGER and FRESCO JWST surveys. The Astrophysical Journal. IOP Publishing. https://doi.org/10.3847/1538-4357/ad2345' chicago: 'Matthee, Jorryt J, Rohan P. Naidu, Gabriel Brammer, John Chisholm, Anna-Christina Eilers, Andy Goulding, Jenny Greene, et al. “Little Red Dots: An Abundant Population of Faint Active Galactic Nuclei at z ∼ 5 Revealed by the EIGER and FRESCO JWST Surveys.” The Astrophysical Journal. IOP Publishing, 2024. https://doi.org/10.3847/1538-4357/ad2345.' ieee: 'J. J. Matthee et al., “Little Red Dots: An abundant population of faint active galactic nuclei at z ∼ 5 revealed by the EIGER and FRESCO JWST surveys,” The Astrophysical Journal, vol. 963, no. 2. IOP Publishing, 2024.' ista: 'Matthee JJ, Naidu RP, Brammer G, Chisholm J, Eilers A-C, Goulding A, Greene J, Kashino D, Labbe I, Lilly SJ, Mackenzie R, Oesch PA, Weibel A, Wuyts S, Xiao M, Bordoloi R, Bouwens R, van Dokkum P, Illingworth G, Kramarenko I, Maseda MV, Mason C, Meyer RA, Nelson EJ, Reddy NA, Shivaei I, Simcoe RA, Yue M. 2024. Little Red Dots: An abundant population of faint active galactic nuclei at z ∼ 5 revealed by the EIGER and FRESCO JWST surveys. The Astrophysical Journal. 963(2), 129.' mla: 'Matthee, Jorryt J., et al. “Little Red Dots: An Abundant Population of Faint Active Galactic Nuclei at z ∼ 5 Revealed by the EIGER and FRESCO JWST Surveys.” The Astrophysical Journal, vol. 963, no. 2, 129, IOP Publishing, 2024, doi:10.3847/1538-4357/ad2345.' short: J.J. Matthee, R.P. Naidu, G. Brammer, J. Chisholm, A.-C. Eilers, A. Goulding, J. Greene, D. Kashino, I. Labbe, S.J. Lilly, R. Mackenzie, P.A. Oesch, A. Weibel, S. Wuyts, M. Xiao, R. Bordoloi, R. Bouwens, P. van Dokkum, G. Illingworth, I. Kramarenko, M.V. Maseda, C. Mason, R.A. Meyer, E.J. Nelson, N.A. Reddy, I. Shivaei, R.A. Simcoe, M. Yue, The Astrophysical Journal 963 (2024). corr_author: '1' das_tickbox: '0' date_created: 2024-03-25T08:54:47Z date_published: 2024-03-07T00:00:00Z date_updated: 2026-10-15T09:15:55Z day: '07' ddc: - '550' department: - _id: JoMa doi: 10.3847/1538-4357/ad2345 external_id: isi: - '001184703600001' file: - access_level: open_access checksum: dc7af4694f9f94a551417ab49fa43edf content_type: application/pdf creator: dernst date_created: 2024-03-25T09:31:58Z date_updated: 2024-03-25T09:31:58Z file_id: '15184' file_name: 2024_AstrophysicalJourn_Matthee.pdf file_size: 6047536 relation: main_file success: 1 file_date_updated: 2024-03-25T09:31:58Z fulldoi: https://doi.org/10.3847/1538-4357/ad2345 has_accepted_license: '1' intvolume: ' 963' isi: 1 issue: '2' keyword: - Space and Planetary Science - Astronomy and Astrophysics language: - iso: eng month: '03' oa: 1 oa_version: Published Version project: - _id: bd9b2118-d553-11ed-ba76-db24564edfea grant_number: '101076224' name: Young galaxies as tracers and agents of cosmic reionization publication: The Astrophysical Journal publication_identifier: eissn: - 1538-4357 issn: - 0004-637X publication_status: published publisher: IOP Publishing quality_controlled: '1' related_material: link: - description: News on ISTA website relation: press_release url: https://ista.ac.at/en/news/baby-quasars-growing-supermassive-black-holes/ researchdata_availability: no scopus_import: '1' status: public supplementarymaterial: yes title: 'Little Red Dots: An abundant population of faint active galactic nuclei at z ∼ 5 revealed by the EIGER and FRESCO JWST surveys' tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 963 year: '2024' ... --- DOAJ_listed: '1' _id: '15170' abstract: - lang: eng text: 'The James Webb Space Telescope is revealing a new population of dust-reddened broad-line active galactic nuclei (AGN) at redshifts z ≳ 5. Here we present deep NIRSpec/Prism spectroscopy from the Cycle 1 Treasury program Ultradeep NIRSpec and NIRCam ObserVations before the Epoch of Reionization (UNCOVER) of 15 AGN candidates selected to be compact, with red continua in the rest-frame optical but with blue slopes in the UV. From NIRCam photometry alone, they could have been dominated by dusty star formation or an AGN. Here we show that the majority of the compact red sources in UNCOVER are dust-reddened AGN: 60% show definitive evidence for broad-line Hα with a FWHM > 2000 km s −1, 20% of the current data are inconclusive, and 20% are brown dwarf stars. We propose an updated photometric criterion to select red z > 5 AGN that excludes brown dwarfs and is expected to yield >80% AGN. Remarkably, among all zphot > 5 galaxies with F277W – F444W > 1 in UNCOVER at least 33% are AGN regardless of compactness, climbing to at least 80% AGN for sources with F277W – F444W > 1.6. The confirmed AGN have black hole masses of 107–109M⊙. While their UV luminosities (−16 > MUV > −20 AB mag) are low compared to UV-selected AGN at these epochs, consistent with percent-level scattered AGN light or low levels of unobscured star formation, the inferred bolometric luminosities are typical of 107–109M⊙ black holes radiating at ∼10%–40% the Eddington limit. The number densities are surprisingly high at ∼10−5 Mpc−3 mag−1, 100 times more common than the faintest UV-selected quasars, while accounting for ∼1% of the UV-selected galaxies. While their UV faintness suggests they may not contribute strongly to reionization, their ubiquity poses challenges to models of black hole growth.' acknowledgement: J.E.G. and A.D.G acknowledge support from NSF/AAG grant No. 1007094, and J.E.G. also acknowledges support from NSF/AAG grant No. 1007052. A.Z. acknowledges support by grant No. 2020750 from the United States-Israel Binational Science Foundation (BSF) and grant No. 2109066 from the United States National Science Foundation (NSF), and by the Ministry of Science & Technology of Israel. The Cosmic Dawn Center is funded by the Danish National Research Foundation (DNRF) under grant No. 140. This work has received funding from the Swiss State Secretariat for Education, Research and Innovation (SERI) under contract number MB22.00072, as well as from the Swiss National Science Foundation (SNSF) through project grant 200020_207349. P.D. acknowledges support from the NWO grant 016.VIDI.189.162 ("ODIN") and from the European Commission's and University of Groningen's CO-FUND Rosalind Franklin program. K.G. and T.N. acknowledge support from Australian Research Council Laureate Fellowship FL180100060. H.A. and I.C. acknowledge support from CNES, focused on the JWST mission, and the Programme National Cosmology and Galaxies (PNCG) of CNRS/INSU with INP and IN2P3, cofunded by CEA and CNES. R.P.N. acknowledges funding from JWST programs GO-1933 and GO-2279. Support for this work was provided by NASA through the NASA Hubble Fellowship grant HST-HF2-51515.001-A awarded by the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Incorporated, under NASA contract NAS5-26555. The research of C.C.W. is supported by NOIRLab, which is managed by the Association of Universities for Research in Astronomy (AURA) under a cooperative agreement with the National Science Foundation. B.W. acknowledges support from JWST-GO-02561.022-A. A.J.B. acknowledges funding support from NASA/ADAP grant 21-ADAP21-0187. Support for this work was provided by The Brinson Foundation through a Brinson Prize Fellowship grant. R.P.N. acknowledges support for this work provided by NASA through the NASA Hubble Fellowship grant HST-HF2-51515.001-A awarded by the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Incorporated, under NASA contract NAS5-26555. C.P. thanks Marsha and Ralph Schilling for the generous support of this research. article_number: '39' article_processing_charge: Yes article_type: original arxiv: 1 author: - first_name: Jenny E. full_name: Greene, Jenny E. last_name: Greene - first_name: Ivo full_name: Labbe, Ivo last_name: Labbe - first_name: Andy D. full_name: Goulding, Andy D. last_name: Goulding - first_name: Lukas J. full_name: Furtak, Lukas J. last_name: Furtak - first_name: Iryna full_name: Chemerynska, Iryna last_name: Chemerynska - first_name: Vasily full_name: Kokorev, Vasily last_name: Kokorev - first_name: Pratika full_name: Dayal, Pratika last_name: Dayal - first_name: Marta full_name: Volonteri, Marta last_name: Volonteri - first_name: Christina C. full_name: Williams, Christina C. last_name: Williams - first_name: Bingjie full_name: Wang, Bingjie last_name: Wang - first_name: David J. full_name: Setton, David J. last_name: Setton - first_name: Adam J. full_name: Burgasser, Adam J. last_name: Burgasser - first_name: Rachel full_name: Bezanson, Rachel last_name: Bezanson - first_name: Hakim full_name: Atek, Hakim last_name: Atek - first_name: Gabriel full_name: Brammer, Gabriel last_name: Brammer - first_name: Sam E. full_name: Cutler, Sam E. last_name: Cutler - first_name: Robert full_name: Feldmann, Robert last_name: Feldmann - first_name: Seiji full_name: Fujimoto, Seiji last_name: Fujimoto - first_name: Karl full_name: Glazebrook, Karl last_name: Glazebrook - first_name: Anna full_name: De Graaff, Anna last_name: De Graaff - first_name: Gourav full_name: Khullar, Gourav last_name: Khullar - first_name: Joel full_name: Leja, Joel last_name: Leja - first_name: Danilo full_name: Marchesini, Danilo last_name: Marchesini - first_name: Michael V. full_name: Maseda, Michael V. last_name: Maseda - first_name: Jorryt J full_name: Matthee, Jorryt J id: 7439a258-f3c0-11ec-9501-9df22fe06720 last_name: Matthee orcid: 0000-0003-2871-127X - first_name: Tim B. full_name: Miller, Tim B. last_name: Miller - first_name: Rohan P. full_name: Naidu, Rohan P. last_name: Naidu - first_name: Themiya full_name: Nanayakkara, Themiya last_name: Nanayakkara - first_name: Pascal A. full_name: Oesch, Pascal A. last_name: Oesch - first_name: Richard full_name: Pan, Richard last_name: Pan - first_name: Casey full_name: Papovich, Casey last_name: Papovich - first_name: Sedona H. full_name: Price, Sedona H. last_name: Price - first_name: Pieter full_name: Van Dokkum, Pieter last_name: Van Dokkum - first_name: John R. full_name: Weaver, John R. last_name: Weaver - first_name: Katherine E. full_name: Whitaker, Katherine E. last_name: Whitaker - first_name: Adi full_name: Zitrin, Adi last_name: Zitrin citation: ama: Greene JE, Labbe I, Goulding AD, et al. UNCOVER spectroscopy confirms the surprising ubiquity of active galactic nuclei in red sources at z > 5. Astrophysical Journal. 2024;964. doi:10.3847/1538-4357/ad1e5f apa: Greene, J. E., Labbe, I., Goulding, A. D., Furtak, L. J., Chemerynska, I., Kokorev, V., … Zitrin, A. (2024). UNCOVER spectroscopy confirms the surprising ubiquity of active galactic nuclei in red sources at z > 5. Astrophysical Journal. IOP Publishing. https://doi.org/10.3847/1538-4357/ad1e5f chicago: Greene, Jenny E., Ivo Labbe, Andy D. Goulding, Lukas J. Furtak, Iryna Chemerynska, Vasily Kokorev, Pratika Dayal, et al. “UNCOVER Spectroscopy Confirms the Surprising Ubiquity of Active Galactic Nuclei in Red Sources at z > 5.” Astrophysical Journal. IOP Publishing, 2024. https://doi.org/10.3847/1538-4357/ad1e5f. ieee: J. E. Greene et al., “UNCOVER spectroscopy confirms the surprising ubiquity of active galactic nuclei in red sources at z > 5,” Astrophysical Journal, vol. 964. IOP Publishing, 2024. ista: Greene JE, Labbe I, Goulding AD, Furtak LJ, Chemerynska I, Kokorev V, Dayal P, Volonteri M, Williams CC, Wang B, Setton DJ, Burgasser AJ, Bezanson R, Atek H, Brammer G, Cutler SE, Feldmann R, Fujimoto S, Glazebrook K, De Graaff A, Khullar G, Leja J, Marchesini D, Maseda MV, Matthee JJ, Miller TB, Naidu RP, Nanayakkara T, Oesch PA, Pan R, Papovich C, Price SH, Van Dokkum P, Weaver JR, Whitaker KE, Zitrin A. 2024. UNCOVER spectroscopy confirms the surprising ubiquity of active galactic nuclei in red sources at z > 5. Astrophysical Journal. 964, 39. mla: Greene, Jenny E., et al. “UNCOVER Spectroscopy Confirms the Surprising Ubiquity of Active Galactic Nuclei in Red Sources at z > 5.” Astrophysical Journal, vol. 964, 39, IOP Publishing, 2024, doi:10.3847/1538-4357/ad1e5f. short: J.E. Greene, I. Labbe, A.D. Goulding, L.J. Furtak, I. Chemerynska, V. Kokorev, P. Dayal, M. Volonteri, C.C. Williams, B. Wang, D.J. Setton, A.J. Burgasser, R. Bezanson, H. Atek, G. Brammer, S.E. Cutler, R. Feldmann, S. Fujimoto, K. Glazebrook, A. De Graaff, G. Khullar, J. Leja, D. Marchesini, M.V. Maseda, J.J. Matthee, T.B. Miller, R.P. Naidu, T. Nanayakkara, P.A. Oesch, R. Pan, C. Papovich, S.H. Price, P. Van Dokkum, J.R. Weaver, K.E. Whitaker, A. Zitrin, Astrophysical Journal 964 (2024). das_tickbox: '0' date_created: 2024-03-24T23:00:59Z date_published: 2024-03-01T00:00:00Z date_updated: 2026-10-15T09:15:28Z day: '01' ddc: - '550' department: - _id: JoMa doi: 10.3847/1538-4357/ad1e5f external_id: arxiv: - '2309.05714' isi: - '001184746500001' file: - access_level: open_access checksum: 389a880e176799d5c062ea7cb82d08c9 content_type: application/pdf creator: dernst date_created: 2024-03-25T08:02:43Z date_updated: 2024-03-25T08:02:43Z file_id: '15176' file_name: 2024_AstrophysicalJourn_Greene.pdf file_size: 2700137 relation: main_file success: 1 file_date_updated: 2024-03-25T08:02:43Z fulldoi: https://doi.org/10.3847/1538-4357/ad1e5f has_accepted_license: '1' intvolume: ' 964' isi: 1 language: - iso: eng month: '03' oa: 1 oa_version: Published Version publication: Astrophysical Journal publication_identifier: eissn: - 1538-4357 issn: - 0004-637X publication_status: published publisher: IOP Publishing quality_controlled: '1' researchdata_availability: no scopus_import: '1' status: public supplementarymaterial: no title: UNCOVER spectroscopy confirms the surprising ubiquity of active galactic nuclei in red sources at z > 5 tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 964 year: '2024' ... --- DOAJ_listed: '1' _id: '17234' abstract: - lang: eng text: The identification of red, apparently massive galaxies at z > 7 in early James Webb Space Telescope (JWST) photometry suggests a strongly accelerated time line compared to standard models of galaxy growth. A major uncertainty in the interpretation is whether the red colors are caused by evolved stellar populations, dust, or other effects such as emission lines or active galactic nuclei (AGNs). Here we show that three of the massive galaxy candidates at z = 6.7–8.4 have prominent Balmer breaks in JWST/NIRSpec spectroscopy from the RUBIES program. The Balmer breaks demonstrate unambiguously that stellar emission dominates at λrest = 0.4 μm and require formation histories extending hundreds of millions of years into the past in galaxies only 600–800 Myr after the big bang. Two of the three galaxies also show broad Balmer lines, with Hβ FWHM > 2500 km s−1, suggesting that dust-reddened AGNs contribute to, or even dominate, the spectral energy distributions of these galaxies at λrest ≳ 0.6 μm. All three galaxies have relatively narrow [O iii] lines, seemingly ruling out a high-mass interpretation if the lines arise in dynamically relaxed, inclined disks. Yet the inferred masses also remain highly uncertain. We model the high-quality spectra using Prospector to decompose the continuum into stellar and AGN components and explore limiting cases in stellar/AGN contribution. This produces a wide range of possible stellar masses, spanning M⋆ ∼ 109−1011M⊙. Nevertheless, all fits suggest a very early and rapid formation, most of which follow with a truncation in star formation. Potential origins and evolutionary tracks for these objects are discussed, from the cores of massive galaxies to low-mass galaxies with overmassive black holes. Intriguingly, we find all of these explanations to be incomplete; deeper and redder data are needed to understand the physics of these systems. acknowledgement: "We thank the anonymous referee for the helpful comments. B.W. and J.L. acknowledge support from JWST-GO04233.009-A. The Cosmic Dawn Center is funded by the Danish National Research Foundation (DNRF) under grant No. 140. This research was supported by the International Space Science Institute (ISSI) in Bern, through ISSI International Team project No. 562 (First Light at Cosmic Dawn: Exploiting the James Webb Space Telescope Revolution). This work is based in part on observations made with the NASA/ESA/CSA James Webb Space Telescope. The data were obtained from the Mikulski Archive for Space Telescopes at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-03127 for JWST. The JWST data presented in this Letter were obtained from the Mikulski Archive for Space Telescopes (MAST) at the Space Telescope Science Institute. The specific observations analyzed can be accessed via doi:10.17909/3a4n-9p88. Computations for this research were performed on the Pennsylvania State University’s Institute for Computational and Data Sciences’ Roar supercomputer. This publication made use of the NASA Astrophysical Data System for bibliographic information. \r\nFacilities: HST (ACS, WFC3), JWST (NIRCam, NIRSpec). Software: Astropy (Astropy Collaboration et al. 2013, 2018, 2022), dynesty (Speagle 2020), EAzY (Brammer et al. 2008),\r\nemcee (Foreman-Mackey et al. 2013), Matplotlib (Hunter 2007), msaexp (Brammer 2023b), msafit (de Graaff et al. 2024a), NumPy (Harris et al. 2020), Prospector (Johnson et al. 2021), Python-FSPS (Johnson et al. 2023)." article_number: L13 article_processing_charge: Yes article_type: original arxiv: 1 author: - first_name: Bingjie full_name: Wang, Bingjie last_name: Wang - first_name: Joel full_name: Leja, Joel last_name: Leja - first_name: Anna full_name: De Graaff, Anna last_name: De Graaff - first_name: Gabriel B. full_name: Brammer, Gabriel B. last_name: Brammer - first_name: Andrea full_name: Weibel, Andrea last_name: Weibel - first_name: Pieter full_name: Van Dokkum, Pieter last_name: Van Dokkum - first_name: Josephine F.W. full_name: Baggen, Josephine F.W. last_name: Baggen - first_name: Katherine A. full_name: Suess, Katherine A. last_name: Suess - first_name: Jenny E. full_name: Greene, Jenny E. last_name: Greene - first_name: Rachel full_name: Bezanson, Rachel last_name: Bezanson - first_name: Nikko J. full_name: Cleri, Nikko J. last_name: Cleri - first_name: Michaela full_name: Hirschmann, Michaela last_name: Hirschmann - first_name: Ivo full_name: Labbé, Ivo last_name: Labbé - first_name: Jorryt J full_name: Matthee, Jorryt J id: 7439a258-f3c0-11ec-9501-9df22fe06720 last_name: Matthee orcid: 0000-0003-2871-127X - first_name: Ian full_name: Mcconachie, Ian last_name: Mcconachie - first_name: Rohan P. full_name: Naidu, Rohan P. last_name: Naidu - first_name: Erica full_name: Nelson, Erica last_name: Nelson - first_name: Pascal A. full_name: Oesch, Pascal A. last_name: Oesch - first_name: David J. full_name: Setton, David J. last_name: Setton - first_name: Christina C. full_name: Williams, Christina C. last_name: Williams citation: ama: 'Wang B, Leja J, De Graaff A, et al. RUBIES: Evolved stellar populations with extended formation histories at z ∼ 7-8 in candidate massive galaxies identified with JWST/NIRSpec. Astrophysical Journal Letters. 2024;969(1). doi:10.3847/2041-8213/ad55f7' apa: 'Wang, B., Leja, J., De Graaff, A., Brammer, G. B., Weibel, A., Van Dokkum, P., … Williams, C. C. (2024). RUBIES: Evolved stellar populations with extended formation histories at z ∼ 7-8 in candidate massive galaxies identified with JWST/NIRSpec. Astrophysical Journal Letters. IOP Publishing. https://doi.org/10.3847/2041-8213/ad55f7' chicago: 'Wang, Bingjie, Joel Leja, Anna De Graaff, Gabriel B. Brammer, Andrea Weibel, Pieter Van Dokkum, Josephine F.W. Baggen, et al. “RUBIES: Evolved Stellar Populations with Extended Formation Histories at z ∼ 7-8 in Candidate Massive Galaxies Identified with JWST/NIRSpec.” Astrophysical Journal Letters. IOP Publishing, 2024. https://doi.org/10.3847/2041-8213/ad55f7.' ieee: 'B. Wang et al., “RUBIES: Evolved stellar populations with extended formation histories at z ∼ 7-8 in candidate massive galaxies identified with JWST/NIRSpec,” Astrophysical Journal Letters, vol. 969, no. 1. IOP Publishing, 2024.' ista: 'Wang B, Leja J, De Graaff A, Brammer GB, Weibel A, Van Dokkum P, Baggen JFW, Suess KA, Greene JE, Bezanson R, Cleri NJ, Hirschmann M, Labbé I, Matthee JJ, Mcconachie I, Naidu RP, Nelson E, Oesch PA, Setton DJ, Williams CC. 2024. RUBIES: Evolved stellar populations with extended formation histories at z ∼ 7-8 in candidate massive galaxies identified with JWST/NIRSpec. Astrophysical Journal Letters. 969(1), L13.' mla: 'Wang, Bingjie, et al. “RUBIES: Evolved Stellar Populations with Extended Formation Histories at z ∼ 7-8 in Candidate Massive Galaxies Identified with JWST/NIRSpec.” Astrophysical Journal Letters, vol. 969, no. 1, L13, IOP Publishing, 2024, doi:10.3847/2041-8213/ad55f7.' short: B. Wang, J. Leja, A. De Graaff, G.B. Brammer, A. Weibel, P. Van Dokkum, J.F.W. Baggen, K.A. Suess, J.E. Greene, R. Bezanson, N.J. Cleri, M. Hirschmann, I. Labbé, J.J. Matthee, I. Mcconachie, R.P. Naidu, E. Nelson, P.A. Oesch, D.J. Setton, C.C. Williams, Astrophysical Journal Letters 969 (2024). das_tickbox: '0' date_created: 2024-07-14T22:01:11Z date_published: 2024-07-01T00:00:00Z date_updated: 2026-10-15T09:10:55Z day: '01' ddc: - '520' department: - _id: JoMa doi: 10.3847/2041-8213/ad55f7 external_id: arxiv: - '2405.01473' isi: - '001257903200001' file: - access_level: open_access checksum: bb1a6725586df12e745d091b5778bb2b content_type: application/pdf creator: dernst date_created: 2024-07-16T06:24:29Z date_updated: 2024-07-16T06:24:29Z file_id: '17243' file_name: 2024_AstrophysicalJourn_Wang.pdf file_size: 3273303 relation: main_file success: 1 file_date_updated: 2024-07-16T06:24:29Z fulldoi: https://doi.org/10.3847/2041-8213/ad55f7 has_accepted_license: '1' intvolume: ' 969' isi: 1 issue: '1' language: - iso: eng month: '07' oa: 1 oa_version: Published Version publication: Astrophysical Journal Letters publication_identifier: eissn: - 2041-8213 issn: - 2041-8205 publication_status: published publisher: IOP Publishing quality_controlled: '1' researchdata_availability: yes scopus_import: '1' status: public supplementarymaterial: yes title: 'RUBIES: Evolved stellar populations with extended formation histories at z ∼ 7-8 in candidate massive galaxies identified with JWST/NIRSpec' tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 969 year: '2024' ... --- _id: '17889' abstract: - lang: eng text: The increasingly neutral intergalactic gas at z > 6 impacts the Lyman-α (Lyα) flux observed from galaxies. One luminous galaxy, COLA1, stands out because of its unique double-peaked Lyα line at z = 6.6, unseen in any simulation of reionization. Here, we present JWST/NIRCam wide-field slitless spectroscopy in a 21 arcmin2 field centered on COLA1. We find 141 galaxies spectroscopically selected through the [O III] doublet at 5.35 < z < 6.95, with 40 of these sources showing Hβ. For COLA1, we additionally detect [O III]4363 as well as Hγ. We measure a systemic redshift of z = 6.5917 for COLA1, confirming the classical double-peak nature of the Lyα profile. This implies that it resides in a highly ionized bubble and that it is leaking ionizing photons with a high escape fraction of fesc(LyC) = 20–50%, making it a prime laboratory to study Lyman continuum escape in the Epoch of Reionization. COLA1 shows all the signs of a prolific ionizer with a Lyα escape fraction of 81 ± 5%, Balmer decrement indicating no dust, a steep UV slope (βUV = −3.2 ± 0.4), and a star-formation surface density ≳10× that of typical galaxies at similar redshift. We detect five galaxies in COLA1’s close environment (Δz < 0.02). Exploiting the high spectroscopic completeness inherent to grism surveys, and using mock simulations that fully mimic the selection function, we show that the number of detected companions is very typical for a normal similarly UV-bright (MUV ∼ −21.3) galaxy – that is, the ionized bubble around COLA1 is unlikely to be due to an excessively large over-density. Instead, the measured ionizing properties suggest that COLA1 by itself might be powering the bubble required to explain its double-peaked Lyα profile (Rion ≈ 0.7 pMpc), with only minor contributions from detected neighbors (−19.5 ≲ MUV ≲ −17.5). acknowledgement: 'The authors acknowledge the financial support from the MICIU with funding from the European Union NextGenerationEU and Generalitat Valenciana in the call Programa de Planes Complementarios de I+D+i (PRTR 2022) Project (VAL-JPAS), reference ASFAE/2022/025. This work has been funded by project PID2019-109592GBI00/AEI/10.13039/501100011033 from the Spanish Ministerio de Ciencia e Innovación (MCIN)-Agencia Estatal de Investigación, by the Project of Excellence Prometeo/2020/085 from the Conselleria d’Innovació Universitats, Ciència i Societat Digital de la Generalitat Valenciana. It has also be funded by the Project of Excellence Prometeo/2020/085 from the Conselleria d’Educació, Universitats, i Ocupació de la Generalitat Valenciana. Funded by the European Union (ERC, AGENTS, 101076224). Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or the European Research Council. Neither the European Union nor the granting authority can be held responsible for them. ST acknowledges support by the Royal Society Research Grant G125142. AH acknowledges support by the VILLUM FONDEN under grant 37459. The Cosmic Dawn Center (DAWN) is funded by the Danish National Research Foundation under grant DNRF140. We acknowledge funding from JWST program GO-1933. Support for this work was provided by NASA through the NASA Hubble Fellowship grant HST-HF2-51515.001-A awarded by the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Incorporated, under NASA contract NAS5-26555. This work has received funding from the Swiss State Secretariat for Education, Research and Innovation (SERI) under contract number MB22.00072, as well as from the Swiss National Science Foundation (SNSF) through project grant 200020_207349. This work is based on observations made with the NASA/ESA/CSA James Webb Space Telescope. The data were obtained from the Mikulski Archive for Space Telescopes at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-03127 for JWST. These observations are associated with program # 1933. The specific observations analyzed can be accessed via https://doi.org/10.17909/s9ht-7n34.' article_number: A44 article_processing_charge: Yes (in subscription journal) article_type: original arxiv: 1 author: - first_name: Alberto full_name: Torralba-Torregrosa, Alberto last_name: Torralba-Torregrosa - first_name: Jorryt J full_name: Matthee, Jorryt J id: 7439a258-f3c0-11ec-9501-9df22fe06720 last_name: Matthee orcid: 0000-0003-2871-127X - first_name: Rohan P. full_name: Naidu, Rohan P. last_name: Naidu - first_name: Ruari full_name: Mackenzie, Ruari last_name: Mackenzie - first_name: Gabriele full_name: Pezzulli, Gabriele last_name: Pezzulli - first_name: Anne full_name: Hutter, Anne last_name: Hutter - first_name: Pablo full_name: Arnalte-Mur, Pablo last_name: Arnalte-Mur - first_name: Siddhartha full_name: Gurung-López, Siddhartha last_name: Gurung-López - first_name: Sandro full_name: Tacchella, Sandro last_name: Tacchella - first_name: Pascal full_name: Oesch, Pascal last_name: Oesch - first_name: Daichi full_name: Kashino, Daichi last_name: Kashino - first_name: Charlie full_name: Conroy, Charlie last_name: Conroy - first_name: David full_name: Sobral, David last_name: Sobral citation: ama: 'Torralba-Torregrosa A, Matthee JJ, Naidu RP, et al. Anatomy of an ionized bubble: NIRCam grism spectroscopy of the z = 6.6 double-peaked Lyman- α emitter COLA1 and its environment. Astronomy & Astrophysics. 2024;689. doi:10.1051/0004-6361/202450318' apa: 'Torralba-Torregrosa, A., Matthee, J. J., Naidu, R. P., Mackenzie, R., Pezzulli, G., Hutter, A., … Sobral, D. (2024). Anatomy of an ionized bubble: NIRCam grism spectroscopy of the z = 6.6 double-peaked Lyman- α emitter COLA1 and its environment. Astronomy & Astrophysics. EDP Sciences. https://doi.org/10.1051/0004-6361/202450318' chicago: 'Torralba-Torregrosa, Alberto, Jorryt J Matthee, Rohan P. Naidu, Ruari Mackenzie, Gabriele Pezzulli, Anne Hutter, Pablo Arnalte-Mur, et al. “Anatomy of an Ionized Bubble: NIRCam Grism Spectroscopy of the z = 6.6 Double-Peaked Lyman- α Emitter COLA1 and Its Environment.” Astronomy & Astrophysics. EDP Sciences, 2024. https://doi.org/10.1051/0004-6361/202450318.' ieee: 'A. Torralba-Torregrosa et al., “Anatomy of an ionized bubble: NIRCam grism spectroscopy of the z = 6.6 double-peaked Lyman- α emitter COLA1 and its environment,” Astronomy & Astrophysics, vol. 689. EDP Sciences, 2024.' ista: 'Torralba-Torregrosa A, Matthee JJ, Naidu RP, Mackenzie R, Pezzulli G, Hutter A, Arnalte-Mur P, Gurung-López S, Tacchella S, Oesch P, Kashino D, Conroy C, Sobral D. 2024. Anatomy of an ionized bubble: NIRCam grism spectroscopy of the z = 6.6 double-peaked Lyman- α emitter COLA1 and its environment. Astronomy & Astrophysics. 689, A44.' mla: 'Torralba-Torregrosa, Alberto, et al. “Anatomy of an Ionized Bubble: NIRCam Grism Spectroscopy of the z = 6.6 Double-Peaked Lyman- α Emitter COLA1 and Its Environment.” Astronomy & Astrophysics, vol. 689, A44, EDP Sciences, 2024, doi:10.1051/0004-6361/202450318.' short: A. Torralba-Torregrosa, J.J. Matthee, R.P. Naidu, R. Mackenzie, G. Pezzulli, A. Hutter, P. Arnalte-Mur, S. Gurung-López, S. Tacchella, P. Oesch, D. Kashino, C. Conroy, D. Sobral, Astronomy & Astrophysics 689 (2024). das_tickbox: '0' date_created: 2024-09-08T22:01:11Z date_published: 2024-09-01T00:00:00Z date_updated: 2026-10-15T09:15:07Z day: '01' ddc: - '520' department: - _id: JoMa doi: 10.1051/0004-6361/202450318 external_id: arxiv: - '2404.10040' isi: - '001303205700016' file: - access_level: open_access checksum: a6c0df287c75e8929db9f42badeac859 content_type: application/pdf creator: dernst date_created: 2024-09-11T07:35:00Z date_updated: 2024-09-11T07:35:00Z file_id: '18055' file_name: 2024_AstronomyAstrophysics_TorralbaTorregrosa.pdf file_size: 6225413 relation: main_file success: 1 file_date_updated: 2024-09-11T07:35:00Z fulldoi: https://doi.org/10.1051/0004-6361/202450318 has_accepted_license: '1' intvolume: ' 689' isi: 1 language: - iso: eng month: '09' oa: 1 oa_version: Published Version publication: Astronomy & Astrophysics publication_identifier: eissn: - 1432-0746 issn: - 0004-6361 publication_status: published publisher: EDP Sciences quality_controlled: '1' researchdata_availability: no scopus_import: '1' status: public supplementarymaterial: yes title: 'Anatomy of an ionized bubble: NIRCam grism spectroscopy of the z = 6.6 double-peaked Lyman- α emitter COLA1 and its environment' tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 689 year: '2024' ... --- OA_place: repository OA_type: green _id: '17090' abstract: - lang: eng text: Primordial neutral atomic gas, mostly composed of hydrogen, is the raw material for star formation in galaxies. However, there are few direct constraints on the amount of neutral atomic hydrogen (H i) in galaxies at early cosmic times. We analyzed James Webb Space Telescope (JWST) near-infrared spectroscopy of distant galaxies, at redshifts ≳8. From a sample of 12 galaxies, we identified three that show strong damped Lyman-α absorption due to H i in their local surroundings. The galaxies are located at spectroscopic redshifts of 8.8, 10.2, and 11.4, corresponding to 400 to 600 million years after the Big Bang. They have H i column densities ≳1022 cm−2, which is an order of magnitude higher than expected for a fully neutral intergalactic medium, and constitute a gas-rich population of young star-forming galaxies. acknowledgement: K.E.H. acknowledges support from Carlsberg Foundation Reintegration Fellowship grant CF21-0103. A.H. acknowledges support from the VILLUM FONDEN under grant 37459. C.A.M. acknowledges support from the VILLUM FONDEN under grant 37459 and the Carlsberg Foundation under grant CF22-1322. N.R.T. was funded through Science and Technology Facilities Council (STFC) consolidated grant ST/W000857/1. R.P.N. acknowledges funding from JWST programs GO-1933 and GO-2279. R.P.N. was supported by the NASA Hubble Fellowship grant HST-HF2-51515.001-A awarded by the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy under NASA contract NAS5-26555. P.A.O. received funding from the Swiss State Secretariat for Education, Research, and Innovation (SERI) under contract number MB22.00072 and from the Swiss National Science Foundation (SNSF) through project grant 200020_207349. article_processing_charge: No article_type: original author: - first_name: Kasper E. full_name: Heintz, Kasper E. last_name: Heintz - first_name: Darach full_name: Watson, Darach last_name: Watson - first_name: Gabriel full_name: Brammer, Gabriel last_name: Brammer - first_name: Simone full_name: Vejlgaard, Simone last_name: Vejlgaard - first_name: Anne full_name: Hutter, Anne last_name: Hutter - first_name: Victoria B. full_name: Strait, Victoria B. last_name: Strait - first_name: Jorryt J full_name: Matthee, Jorryt J id: 7439a258-f3c0-11ec-9501-9df22fe06720 last_name: Matthee orcid: 0000-0003-2871-127X - first_name: Pascal A. full_name: Oesch, Pascal A. last_name: Oesch - first_name: Páll full_name: Jakobsson, Páll last_name: Jakobsson - first_name: Nial R. full_name: Tanvir, Nial R. last_name: Tanvir - first_name: Peter full_name: Laursen, Peter last_name: Laursen - first_name: Rohan P. full_name: Naidu, Rohan P. last_name: Naidu - first_name: Charlotte A. full_name: Mason, Charlotte A. last_name: Mason - first_name: Meghana full_name: Killi, Meghana last_name: Killi - first_name: Intae full_name: Jung, Intae last_name: Jung - first_name: Tiger Yu Yang full_name: Hsiao, Tiger Yu Yang last_name: Hsiao - first_name: Unknown full_name: Abdurro’Uf, Unknown last_name: Abdurro’Uf - first_name: Dan full_name: Coe, Dan last_name: Coe - first_name: Pablo Arrabal full_name: Haro, Pablo Arrabal last_name: Haro - first_name: Steven L. full_name: Finkelstein, Steven L. last_name: Finkelstein - first_name: Sune full_name: Toft, Sune last_name: Toft citation: ama: Heintz KE, Watson D, Brammer G, et al. Strong damped Lyman-a absorption in young star-forming galaxies at redshifts 9 to 11. Science. 2024;384(6698):890-894. doi:10.1126/science.adj0343 apa: Heintz, K. E., Watson, D., Brammer, G., Vejlgaard, S., Hutter, A., Strait, V. B., … Toft, S. (2024). Strong damped Lyman-a absorption in young star-forming galaxies at redshifts 9 to 11. Science. AAAS. https://doi.org/10.1126/science.adj0343 chicago: Heintz, Kasper E., Darach Watson, Gabriel Brammer, Simone Vejlgaard, Anne Hutter, Victoria B. Strait, Jorryt J Matthee, et al. “Strong Damped Lyman-a Absorption in Young Star-Forming Galaxies at Redshifts 9 to 11.” Science. AAAS, 2024. https://doi.org/10.1126/science.adj0343. ieee: K. E. Heintz et al., “Strong damped Lyman-a absorption in young star-forming galaxies at redshifts 9 to 11,” Science, vol. 384, no. 6698. AAAS, pp. 890–894, 2024. ista: Heintz KE, Watson D, Brammer G, Vejlgaard S, Hutter A, Strait VB, Matthee JJ, Oesch PA, Jakobsson P, Tanvir NR, Laursen P, Naidu RP, Mason CA, Killi M, Jung I, Hsiao TYY, Abdurro’Uf U, Coe D, Haro PA, Finkelstein SL, Toft S. 2024. Strong damped Lyman-a absorption in young star-forming galaxies at redshifts 9 to 11. Science. 384(6698), 890–894. mla: Heintz, Kasper E., et al. “Strong Damped Lyman-a Absorption in Young Star-Forming Galaxies at Redshifts 9 to 11.” Science, vol. 384, no. 6698, AAAS, 2024, pp. 890–94, doi:10.1126/science.adj0343. short: K.E. Heintz, D. Watson, G. Brammer, S. Vejlgaard, A. Hutter, V.B. Strait, J.J. Matthee, P.A. Oesch, P. Jakobsson, N.R. Tanvir, P. Laursen, R.P. Naidu, C.A. Mason, M. Killi, I. Jung, T.Y.Y. Hsiao, U. Abdurro’Uf, D. Coe, P.A. Haro, S.L. Finkelstein, S. Toft, Science 384 (2024) 890–894. das_tickbox: '1' dataavailabilitystatement: 'The JWST spectroscopic data are available at the Mikulski Archive for Space Telescopes (MAST) (https://mast.stsci.edu) under program IDs DD-2750 and GO-1433 for the three selected galaxies; the IDs for the other galaxies we searched are listed in table S1. Our data analysis codes are archived at Zenodo (19, 20). The reduced spectroscopic data are available through the DAWN JWST Archive (DJA): https://s3.amazonaws.com/msaexp-nirspec/extractions/nirspec_graded.html under file names ceers-ddt-v1_prism-clear_2750_28.spec.fits for CEERS-43833, macsj0647-v1_prism-clear_1433_3593.spec.fits for MACS0647-JD, and ceers-ddt-v1_prism-clear_2750_1.spec.fits for CEERS-16943. The photometry is available at https://dawn-cph.github.io/dja/imaging/v7/. Our derived physical parameters are provided in Table 1, and measured line fluxes are provided in table S2.' date_created: 2024-06-02T22:00:56Z date_published: 2024-05-24T00:00:00Z date_updated: 2026-10-15T09:10:20Z day: '24' department: - _id: JoMa doi: 10.1126/science.adj0343 external_id: isi: - '001230029500001' pmid: - '38781391' fulldoi: https://doi.org/10.1126/science.adj0343 intvolume: ' 384' isi: 1 issue: '6698' language: - iso: eng main_file_link: - open_access: '1' url: https://figshare.com/articles/journal_contribution/Strong_damped_Lyman-_absorption_in_young_star-forming_galaxies_at_redshifts_9_to_11/26069122?file=47174584 month: '05' oa: 1 oa_version: Submitted Version page: 890-894 pmid: 1 publication: Science publication_identifier: eissn: - 1095-9203 issn: - 0036-8075 publication_status: published publisher: AAAS quality_controlled: '1' researchdata_availability: yes scopus_import: '1' status: public supplementarymaterial: yes title: Strong damped Lyman-a absorption in young star-forming galaxies at redshifts 9 to 11 type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 384 year: '2024' ... --- DOAJ_listed: '1' OA_place: publisher OA_type: gold _id: '15249' abstract: - lang: eng text: Observationally mapping the relation between galaxies and the intergalactic medium (IGM) is of key interest for studies of cosmic reionization. Diffuse hydrogen gas has typically been observed in H I Lyman-α (Lyα) absorption in the spectra of bright background quasars. However, it is important to extend these measurements to background galaxies as quasars become increasingly rare at high redshift and rarely probe closely separated sight lines. Here, we use deep integral field spectroscopy in the MUSE eXtremely Deep Field to demonstrate the measurement of the Lyα transmission at z ≈ 4 in absorption to a background galaxy at z = 4.77. The H I transmission is consistent with independent quasar sight lines at similar redshifts. Exploiting the high number of spectroscopic redshifts of faint galaxies (500 between z = 4.0–4.7 within a radius of 8 arcmin) that are tracers of the density field, we show that Lyα transmission is inversely correlated with galaxy density, i.e. transparent regions in the Lyα forest mark underdense regions at z ≈ 4. Due to large-scale clustering, galaxies are surrounded by excess H I absorption over the cosmic mean out to 4 cMpc/h70. We also find that redshifts from the peak of the Lyα line are typically offset from the systemic redshift by +170 km s−1. This work extends results from z ≈ 2–3 to higher redshifts and demonstrates the power of deep integral field spectroscopy to simultaneously measure the ionization structure of the IGM and the large-scale density field in the early Universe. acknowledgement: We thank the referee for constructive comments that helped improving the paper. Based on observations collected at the European Southern Observatory under ESO programme 1101.A-0127. Funded by the European Union (ERC, AGENTS, 101076224). Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or the European Research Council. Neither the European Union nor the granting authority can be held responsible for them. GP acknowledges support from the Netherlands Research School for Astronomy (Nederlandse Onderzoekschool Voor Astronomie, NOVA). JB acknowledges financial support from the Fundação para a Ciência e a Tecnologia (FCT) through national funds PTDC/FIS-AST/4862/2020, work contract 2020.03379.CEECIND, and research grants UIDB/04434/2020 and UIDP/04434/2020. TU and LW acknowledge funding by the European Research Council through ERC-AdG SPECMAP-CGM, GA 101020943. TG is supported by the ERC Starting grant 757258 ‘TRIPLE’. article_processing_charge: Yes article_type: original arxiv: 1 author: - first_name: Jorryt J full_name: Matthee, Jorryt J id: 7439a258-f3c0-11ec-9501-9df22fe06720 last_name: Matthee orcid: 0000-0003-2871-127X - first_name: Christopher full_name: Golling, Christopher last_name: Golling - first_name: Ruari full_name: Mackenzie, Ruari last_name: Mackenzie - first_name: Gabriele full_name: Pezzulli, Gabriele last_name: Pezzulli - first_name: Simon full_name: Lilly, Simon last_name: Lilly - first_name: Joop full_name: Schaye, Joop last_name: Schaye - first_name: Roland full_name: Bacon, Roland last_name: Bacon - first_name: Haruka full_name: Kusakabe, Haruka last_name: Kusakabe - first_name: Tanya full_name: Urrutia, Tanya last_name: Urrutia - first_name: Leindert full_name: Boogaard, Leindert last_name: Boogaard - first_name: Jarle full_name: Brinchmann, Jarle last_name: Brinchmann - first_name: Michael V. full_name: Maseda, Michael V. last_name: Maseda - first_name: Thibault full_name: Garel, Thibault last_name: Garel - first_name: Nicolas F. full_name: Bouché, Nicolas F. last_name: Bouché - first_name: Lutz full_name: Wisotzki, Lutz last_name: Wisotzki citation: ama: Matthee JJ, Golling C, Mackenzie R, et al. Large-scale excess H I absorption around z ≈ 4 galaxies detected in a background galaxy spectrum in the MUSE eXtremely deep field. Monthly Notices of the Royal Astronomical Society. 2024;529(3):2794-2806. doi:10.1093/mnras/stae673 apa: Matthee, J. J., Golling, C., Mackenzie, R., Pezzulli, G., Lilly, S., Schaye, J., … Wisotzki, L. (2024). Large-scale excess H I absorption around z ≈ 4 galaxies detected in a background galaxy spectrum in the MUSE eXtremely deep field. Monthly Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stae673 chicago: Matthee, Jorryt J, Christopher Golling, Ruari Mackenzie, Gabriele Pezzulli, Simon Lilly, Joop Schaye, Roland Bacon, et al. “Large-Scale Excess H I Absorption around z ≈ 4 Galaxies Detected in a Background Galaxy Spectrum in the MUSE EXtremely Deep Field.” Monthly Notices of the Royal Astronomical Society. Oxford University Press, 2024. https://doi.org/10.1093/mnras/stae673. ieee: J. J. Matthee et al., “Large-scale excess H I absorption around z ≈ 4 galaxies detected in a background galaxy spectrum in the MUSE eXtremely deep field,” Monthly Notices of the Royal Astronomical Society, vol. 529, no. 3. Oxford University Press, pp. 2794–2806, 2024. ista: Matthee JJ, Golling C, Mackenzie R, Pezzulli G, Lilly S, Schaye J, Bacon R, Kusakabe H, Urrutia T, Boogaard L, Brinchmann J, Maseda MV, Garel T, Bouché NF, Wisotzki L. 2024. Large-scale excess H I absorption around z ≈ 4 galaxies detected in a background galaxy spectrum in the MUSE eXtremely deep field. Monthly Notices of the Royal Astronomical Society. 529(3), 2794–2806. mla: Matthee, Jorryt J., et al. “Large-Scale Excess H I Absorption around z ≈ 4 Galaxies Detected in a Background Galaxy Spectrum in the MUSE EXtremely Deep Field.” Monthly Notices of the Royal Astronomical Society, vol. 529, no. 3, Oxford University Press, 2024, pp. 2794–806, doi:10.1093/mnras/stae673. short: J.J. Matthee, C. Golling, R. Mackenzie, G. Pezzulli, S. Lilly, J. Schaye, R. Bacon, H. Kusakabe, T. Urrutia, L. Boogaard, J. Brinchmann, M.V. Maseda, T. Garel, N.F. Bouché, L. Wisotzki, Monthly Notices of the Royal Astronomical Society 529 (2024) 2794–2806. corr_author: '1' das_tickbox: '1' dataavailabilitystatement: The MUSE data in the UDF-MXDF region underlying this work is available through the website https://amused.univ-lyon1.fr/. The catalogue of galaxies in the MUSE Wide region is available through https://musewide.aip.de/. The transmission spectrum measured in this paper will be available online through the publisher. date_created: 2024-03-31T22:01:12Z date_published: 2024-04-01T00:00:00Z date_updated: 2026-10-15T09:19:25Z day: '01' ddc: - '520' department: - _id: JoMa doi: 10.1093/mnras/stae673 external_id: arxiv: - '2305.15346' isi: - '001188770300019' file: - access_level: open_access checksum: 1e65c40a71e565eebdc4c5ff11822ba2 content_type: application/pdf creator: dernst date_created: 2024-04-02T08:42:17Z date_updated: 2024-04-02T08:42:17Z file_id: '15255' file_name: 2024_MonthlyNRoyalAstronSoc_Matthee.pdf file_size: 2626735 relation: main_file success: 1 file_date_updated: 2024-04-02T08:42:17Z fulldoi: https://doi.org/10.1093/mnras/stae673 has_accepted_license: '1' intvolume: ' 529' isi: 1 issue: '3' language: - iso: eng month: '04' oa: 1 oa_version: Published Version page: 2794-2806 project: - _id: bd9b2118-d553-11ed-ba76-db24564edfea grant_number: '101076224' name: Young galaxies as tracers and agents of cosmic reionization publication: Monthly Notices of the Royal Astronomical Society publication_identifier: eissn: - 1365-2966 issn: - 0035-8711 publication_status: published publisher: Oxford University Press quality_controlled: '1' researchdata_availability: yes scopus_import: '1' status: public supplementarymaterial: yes title: Large-scale excess H I absorption around z ≈ 4 galaxies detected in a background galaxy spectrum in the MUSE eXtremely deep field tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 529 year: '2024' ... --- DOAJ_listed: '1' OA_place: publisher OA_type: gold _id: '18494' abstract: - lang: eng text: We expect luminous (M 1450 ≲ −26.5) high-redshift quasars to trace the highest-density peaks in the early Universe. Here, we present observations of four z ≳ 6 quasar fields using JWST/NIRCam in the imaging and wide-field slitless spectroscopy mode and report a wide range in the number of detected [O iii]-emitting galaxies in the quasars’ environments, ranging between a density enhancement of δ ≈ 65 within a 2 cMpc radius—one of the largest protoclusters during the Epoch of Reionization discovered to date—to a density contrast consistent with zero, indicating the presence of a UV-luminous quasar in a region comparable to the average density of the Universe. By measuring the two-point cross-correlation function of quasars and their surrounding galaxies, as well as the galaxy autocorrelation function, we infer a correlation length of quasars at 〈z〉 = 6.25 of r 0 QQ = 22.0 − 2.9 + 3.0 cMpc h − 1 , while we obtain a correlation length of the [O iii]-emitting galaxies of r 0 GG = 4.1 ± 0.3 cMpc h − 1 . By comparing the correlation functions to dark-matter-only simulations we estimate the minimum mass of the quasars’ host dark matter halos to be log 10 ( M halo , min / M ⊙ ) = 12.43 − 0.15 + 0.13 (and log 10 ( M halo , min [ OIII ] / M ⊙ ) = 10.56 − 0.03 + 0.05 for the [O iii] emitters), indicating that (a) luminous quasars do not necessarily reside within the most overdense regions in the early Universe, and that (b) the UV-luminous duty cycle of quasar activity at these redshifts is f duty ≪ 1. Such short quasar activity timescales challenge our understanding of early supermassive black hole growth and provide evidence for highly dust-obscured growth phases or episodic, radiatively inefficient accretion rates. acknowledgement: "The authors would like to thank the anonymous referee for the thoughtful comments, which significantly improved our manuscript, and Jan-Torge Schindler, Jiamu Huang, and Feige Wang for helpful discussions.\r\n\r\nJ.F.H. and E.P. acknowledge support from the European Research Council (ERC) under the European Unions Horizon 2020 research and innovation program (grant agreement No. 885301). J.M. acknowledges support from the European Union (ERC, AGENTS, 101076224).\r\n\r\nThis work is based on observations made with the NASA/ESA/CSA James Webb Space Telescope. The JWST data presented in this article were obtained from the Mikulski Archive for Space Telescopes at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-03127 for JWST. The specific observations analyzed are associated with program #1243 and can be accessed via doi:10.17909/m5mp-5v90.\r\n\r\nThis work used the DiRAC Memory Intensive service (Cosma8) at the University of Durham, which is part of the STFC DiRAC HPC Facility (www.dirac.ac.uk). Access to DiRAC resources was granted through a Directors Discretionary Time allocation in 2023/24, under the auspices of the UKRI-funded DiRAC Federation Project. The equipment was funded by BEIS capital funding via STFC capital grants ST/K00042X/1, ST/P002293/1, ST/R002371/1, and ST/S002502/1, Durham University and STFC operations grant ST/R000832/1. DiRAC is part of the National e-Infrastructure.\r\n\r\nWe thank the Instituto de Astrofisica de Andalucia (IAA-CSIC), Centro de Supercomputacion de Galicia (CESGA), and Spanish Academic and Research Network (RedIRIS) in Spain for hosting Uchuu DR1, DR2, and DR3 in the Skies & Universes site for cosmological simulations. The Uchuu simulations were carried out on the Aterui II supercomputer at the Center for Computational Astrophysics, CfCA, of the National Astronomical Observatory of Japan, and the K computer at the RIKEN Advanced Institute for Computational Science. The Uchuu Data Releases efforts have made use of the skunIAA_RedIRIS and skun6IAA computer facilities managed by the IAA-CSIC in Spain (MICINN EU-Feder grant EQC2018-004366-P)." article_number: '275' article_processing_charge: Yes article_type: original author: - first_name: Anna Christina full_name: Eilers, Anna Christina last_name: Eilers - first_name: Ruari full_name: Mackenzie, Ruari last_name: Mackenzie - first_name: Elia full_name: Pizzati, Elia last_name: Pizzati - first_name: Jorryt J full_name: Matthee, Jorryt J id: 7439a258-f3c0-11ec-9501-9df22fe06720 last_name: Matthee orcid: 0000-0003-2871-127X - first_name: Joseph F. full_name: Hennawi, Joseph F. last_name: Hennawi - first_name: Haowen full_name: Zhang, Haowen last_name: Zhang - first_name: Rongmon full_name: Bordoloi, Rongmon last_name: Bordoloi - first_name: Daichi full_name: Kashino, Daichi last_name: Kashino - first_name: Simon J. full_name: Lilly, Simon J. last_name: Lilly - first_name: Rohan P. full_name: Naidu, Rohan P. last_name: Naidu - first_name: Robert A. full_name: Simcoe, Robert A. last_name: Simcoe - first_name: Minghao full_name: Yue, Minghao last_name: Yue - first_name: Carlos S. full_name: Frenk, Carlos S. last_name: Frenk - first_name: John C. full_name: Helly, John C. last_name: Helly - first_name: Matthieu full_name: Schaller, Matthieu last_name: Schaller - first_name: Joop full_name: Schaye, Joop last_name: Schaye citation: ama: Eilers AC, Mackenzie R, Pizzati E, et al. EIGER. VI. The correlation function, host halo mass, and duty cycle of luminous quasars at z ≳ 6. Astrophysical Journal. 2024;974(2). doi:10.3847/1538-4357/ad778b apa: Eilers, A. C., Mackenzie, R., Pizzati, E., Matthee, J. J., Hennawi, J. F., Zhang, H., … Schaye, J. (2024). EIGER. VI. The correlation function, host halo mass, and duty cycle of luminous quasars at z ≳ 6. Astrophysical Journal. IOP Publishing. https://doi.org/10.3847/1538-4357/ad778b chicago: Eilers, Anna Christina, Ruari Mackenzie, Elia Pizzati, Jorryt J Matthee, Joseph F. Hennawi, Haowen Zhang, Rongmon Bordoloi, et al. “EIGER. VI. The Correlation Function, Host Halo Mass, and Duty Cycle of Luminous Quasars at z ≳ 6.” Astrophysical Journal. IOP Publishing, 2024. https://doi.org/10.3847/1538-4357/ad778b. ieee: A. C. Eilers et al., “EIGER. VI. The correlation function, host halo mass, and duty cycle of luminous quasars at z ≳ 6,” Astrophysical Journal, vol. 974, no. 2. IOP Publishing, 2024. ista: Eilers AC, Mackenzie R, Pizzati E, Matthee JJ, Hennawi JF, Zhang H, Bordoloi R, Kashino D, Lilly SJ, Naidu RP, Simcoe RA, Yue M, Frenk CS, Helly JC, Schaller M, Schaye J. 2024. EIGER. VI. The correlation function, host halo mass, and duty cycle of luminous quasars at z ≳ 6. Astrophysical Journal. 974(2), 275. mla: Eilers, Anna Christina, et al. “EIGER. VI. The Correlation Function, Host Halo Mass, and Duty Cycle of Luminous Quasars at z ≳ 6.” Astrophysical Journal, vol. 974, no. 2, 275, IOP Publishing, 2024, doi:10.3847/1538-4357/ad778b. short: A.C. Eilers, R. Mackenzie, E. Pizzati, J.J. Matthee, J.F. Hennawi, H. Zhang, R. Bordoloi, D. Kashino, S.J. Lilly, R.P. Naidu, R.A. Simcoe, M. Yue, C.S. Frenk, J.C. Helly, M. Schaller, J. Schaye, Astrophysical Journal 974 (2024). das_tickbox: '0' date_created: 2024-11-03T23:01:45Z date_published: 2024-10-01T00:00:00Z date_updated: 2026-10-15T09:27:42Z day: '01' ddc: - '520' department: - _id: JoMa doi: 10.3847/1538-4357/ad778b external_id: isi: - '001338877100001' file: - access_level: open_access checksum: 1fcac3d11d01d91cf2bb4963b6e10b22 content_type: application/pdf creator: dernst date_created: 2024-11-04T08:42:23Z date_updated: 2024-11-04T08:42:23Z file_id: '18496' file_name: 2024_AstrophysicalJour_Eilers.pdf file_size: 1042470 relation: main_file success: 1 file_date_updated: 2024-11-04T08:42:23Z fulldoi: https://doi.org/10.3847/1538-4357/ad778b has_accepted_license: '1' intvolume: ' 974' isi: 1 issue: '2' language: - iso: eng month: '10' oa: 1 oa_version: Published Version project: - _id: bd9b2118-d553-11ed-ba76-db24564edfea grant_number: '101076224' name: Young galaxies as tracers and agents of cosmic reionization publication: Astrophysical Journal publication_identifier: eissn: - 1538-4357 issn: - 0004-637X publication_status: published publisher: IOP Publishing quality_controlled: '1' researchdata_availability: no scopus_import: '1' status: public supplementarymaterial: no title: EIGER. VI. The correlation function, host halo mass, and duty cycle of luminous quasars at z ≳ 6 tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 974 year: '2024' ... --- OA_place: publisher OA_type: hybrid _id: '18447' abstract: - lang: eng text: We present the first results on the spatial distribution of star formation in 454 star-forming galaxies just after the epoch of reionisation (4.8 < z < 6.5) using Hα emission-line maps and F444W imaging that traces the stellar continuum from the JWST FRESCO NIRCam Slitless Spectroscopy Survey. The Hα equivalent width profiles of star-forming galaxies across the main sequence at z ∼ 5.3 with stellar masses 6.8≤ log(M*/M⊙) < 11.1 increase with radius, which provides direct evidence for the inside-out growth of star-forming galaxies just after the epoch of reionisation. GALFIT was used to calculate half-light radii, Reff, and central surface densities within 1 kiloparsec, Σ1kpc of Hα and the continuum. At a fixed stellar mass of Log(M*/M⊙) = 9.5, Σ1kpc, Hα is 1.04 ± 0.05 times higher than Σ1kpc, C, Reff, Hα is 1.18 ± 0.03 times larger than Reff, C and both Reff measurements are smaller than 1 kiloparsec. These measurements suggest the rapid build-up of compact bulges via star formation just after the epoch of reionisation. By comparison to analogous work done at lower redshifts with Hubble Space Telescope WFC3 slitless spectroscopy as part of the 3D-HST (z ∼ 1) and CLEAR (z ∼ 0.5) surveys, we find that Reff(z) evolves at the same pace for Hα and the continuum, but Σ1kpc(z) evolves faster for Hα than the stellar continuum. As a function of the Hubble parameter, Reff, Hα/Reff,C = 1.1h(z) and Σ1 kpc, Hα/Σ1 kpc,C = h(z)1.3. These parametrisations suggest that the inside-out growth of the disk starts to dominate the inside-out growth of the bulge towards lower redshifts. This is supported by the redshift evolution in the EW(Hα) profiles from FRESCO, 3D-HST, and CLEAR at fixed stellar mass and when star-forming progenitors are traced, in which in EW(Hα) rapidly increases with radius within the half-light radius at z ∼ 5.3, but EW(Hα) increases only significantly with radius in the outer disk at z ∼ 0.5. acknowledgement: "JM is grateful to the Cosmic Dawn Center for the DAWN Fellowship. JM thanks Adam Muzzin, Viola Gelli and Anne Hutter for useful discussions that led to improvements in the analysis presented in this paper. This work is based on observations made with the NASA/ESA/CSA James Webb Space Telescope. The raw data were obtained from the Mikulski Archive for\r\nSpace Telescopes at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-03127 for JWST. These observations are associated with JWST Cycle 1 GO program #1895. Support for program JWST-GO-1895 was provided by NASA through a grant from the Space Telescope Science Institute, which is operated by the Associations of Universities for Research in Astronomy, Incorporated, under NASA contract NAS5-26555. The Cosmic Dawn Center DAWN) is funded by the Danish National Research Foundation under grant DNRF140.\r\nThis work has received funding from the Swiss State Secretariat for Education, Research and Innovation (SERI) under contract number MB22.00072, as well as from the Swiss National Science Foundation (SNSF) through project grant 200020_207349. RPN thanks the NASA Hubble Fellowshp Program for the Hubble Fellowship. DM acknowledges funding from JWST-GO-01895.013, provided through a grant from the STScI under NASA contract NAS5-03127." article_number: A64 article_processing_charge: Yes (in subscription journal) article_type: original arxiv: 1 author: - first_name: Jasleen full_name: Matharu, Jasleen last_name: Matharu - first_name: Erica J. full_name: Nelson, Erica J. last_name: Nelson - first_name: Gabriel full_name: Brammer, Gabriel last_name: Brammer - first_name: Pascal A. full_name: Oesch, Pascal A. last_name: Oesch - first_name: Natalie full_name: Allen, Natalie last_name: Allen - first_name: Irene full_name: Shivaei, Irene last_name: Shivaei - first_name: Rohan P. full_name: Naidu, Rohan P. last_name: Naidu - first_name: John full_name: Chisholm, John last_name: Chisholm - first_name: Alba full_name: Covelo-Paz, Alba last_name: Covelo-Paz - first_name: Yoshinobu full_name: Fudamoto, Yoshinobu last_name: Fudamoto - first_name: Emma full_name: Giovinazzo, Emma last_name: Giovinazzo - first_name: Thomas full_name: Herard-Demanche, Thomas last_name: Herard-Demanche - first_name: Josephine full_name: Kerutt, Josephine last_name: Kerutt - first_name: Ivan full_name: Kramarenko, Ivan id: 9a9394cb-3200-11ee-973b-f5ba2a8b16e4 last_name: Kramarenko orcid: 0000-0001-5346-6048 - first_name: Danilo full_name: Marchesini, Danilo last_name: Marchesini - first_name: Romain A. full_name: Meyer, Romain A. last_name: Meyer - first_name: Gonzalo full_name: Prieto-Lyon, Gonzalo last_name: Prieto-Lyon - first_name: Naveen full_name: Reddy, Naveen last_name: Reddy - first_name: Marko full_name: Shuntov, Marko last_name: Shuntov - first_name: Andrea full_name: Weibel, Andrea last_name: Weibel - first_name: Stijn full_name: Wuyts, Stijn last_name: Wuyts - first_name: Mengyuan full_name: Xiao, Mengyuan last_name: Xiao citation: ama: Matharu J, Nelson EJ, Brammer G, et al. A first look at spatially resolved star formation at 4.8 < z < 6.5 with JWST FRESCO NIRCam slitless spectroscopy. Astronomy & Astrophysics. 2024;690. doi:10.1051/0004-6361/202450522 apa: Matharu, J., Nelson, E. J., Brammer, G., Oesch, P. A., Allen, N., Shivaei, I., … Xiao, M. (2024). A first look at spatially resolved star formation at 4.8 < z < 6.5 with JWST FRESCO NIRCam slitless spectroscopy. Astronomy & Astrophysics. EDP Sciences. https://doi.org/10.1051/0004-6361/202450522 chicago: Matharu, Jasleen, Erica J. Nelson, Gabriel Brammer, Pascal A. Oesch, Natalie Allen, Irene Shivaei, Rohan P. Naidu, et al. “A First Look at Spatially Resolved Star Formation at 4.8 < z < 6.5 with JWST FRESCO NIRCam Slitless Spectroscopy.” Astronomy & Astrophysics. EDP Sciences, 2024. https://doi.org/10.1051/0004-6361/202450522. ieee: J. Matharu et al., “A first look at spatially resolved star formation at 4.8 < z < 6.5 with JWST FRESCO NIRCam slitless spectroscopy,” Astronomy & Astrophysics, vol. 690. EDP Sciences, 2024. ista: Matharu J, Nelson EJ, Brammer G, Oesch PA, Allen N, Shivaei I, Naidu RP, Chisholm J, Covelo-Paz A, Fudamoto Y, Giovinazzo E, Herard-Demanche T, Kerutt J, Kramarenko I, Marchesini D, Meyer RA, Prieto-Lyon G, Reddy N, Shuntov M, Weibel A, Wuyts S, Xiao M. 2024. A first look at spatially resolved star formation at 4.8 < z < 6.5 with JWST FRESCO NIRCam slitless spectroscopy. Astronomy & Astrophysics. 690, A64. mla: Matharu, Jasleen, et al. “A First Look at Spatially Resolved Star Formation at 4.8 < z < 6.5 with JWST FRESCO NIRCam Slitless Spectroscopy.” Astronomy & Astrophysics, vol. 690, A64, EDP Sciences, 2024, doi:10.1051/0004-6361/202450522. short: J. Matharu, E.J. Nelson, G. Brammer, P.A. Oesch, N. Allen, I. Shivaei, R.P. Naidu, J. Chisholm, A. Covelo-Paz, Y. Fudamoto, E. Giovinazzo, T. Herard-Demanche, J. Kerutt, I. Kramarenko, D. Marchesini, R.A. Meyer, G. Prieto-Lyon, N. Reddy, M. Shuntov, A. Weibel, S. Wuyts, M. Xiao, Astronomy & Astrophysics 690 (2024). das_tickbox: '0' date_created: 2024-10-20T22:02:06Z date_published: 2024-10-01T00:00:00Z date_updated: 2026-10-15T09:27:12Z day: '01' ddc: - '520' department: - _id: JoMa doi: 10.1051/0004-6361/202450522 external_id: arxiv: - '2404.17629' isi: - '001322237700004' file: - access_level: open_access checksum: 10ae78291aa9fa9a9e64724c42d91588 content_type: application/pdf creator: dernst date_created: 2024-10-21T11:45:35Z date_updated: 2024-10-21T11:45:35Z file_id: '18457' file_name: 2024_AstronomyAstrophysics_Matharu.pdf file_size: 825494 relation: main_file success: 1 file_date_updated: 2024-10-21T11:45:35Z fulldoi: https://doi.org/10.1051/0004-6361/202450522 has_accepted_license: '1' intvolume: ' 690' isi: 1 language: - iso: eng month: '10' oa: 1 oa_version: Published Version publication: Astronomy & Astrophysics publication_identifier: eissn: - 1432-0746 issn: - 0004-6361 publication_status: published publisher: EDP Sciences quality_controlled: '1' researchdata_availability: no scopus_import: '1' status: public supplementarymaterial: no title: A first look at spatially resolved star formation at 4.8 < z < 6.5 with JWST FRESCO NIRCam slitless spectroscopy tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 690 year: '2024' ... --- _id: '15336' abstract: - lang: eng text: Submillimeter surveys toward overdense regions in the early Universe are essential for uncovering the obscured star formation and the cold gas content of assembling galaxies within massive dark matter halos. In this work, we present deep ALMA mosaic observations covering an area of ∼2′×2′ around MUSE Quasar Nebula 01 (MQN01), one of the largest and brightest Ly-α emitting nebulae discovered thus far; it surrounds a radio-quiet quasar at z ≃ 3.25. Our observations target the 1.2 and the 3 mm dust continuum as well as the carbon monoxide CO(4–3) transition in galaxies in the vicinity of the quasar. We identify a robust sample of 11 CO-line-emitting galaxies (including a closely separated quasar companion) that lie within ±4000 km s−1 of the quasar systemic redshift. A fraction of these objects were missed in previous deep rest-frame optical/UV surveys, which highlights the critical role of (sub)millimeter imaging. We also detect a total of 11 sources revealed in the dust continuum at 1.2 mm; six of them have either high-fidelity spectroscopic redshift information from rest-frame UV metal absorptions or the CO(4–3) line that places them in the same narrow redshift range. A comparison of the CO luminosity function and 1.2 mm number count density with those of the general fields points to a galaxy overdensity of δ > 10. We find evidence of a systematic flattening at the bright end of the CO luminosity function with respect to the trend measured in blank fields. Our findings reveal that galaxies in dense regions at z ∼ 3 are more massive and significantly richer in molecular gas than galaxies in fields, which enables a faster and accelerated assembly. This is the first in a series of studies aimed at characterizing one of the densest regions of the Universe found so far at z > 3. acknowledgement: 'We thank the anonymous referee for the careful reading of the paper and useful suggestions which improved the manuscript. We thank Dr. Leindert Boogaard for sharing data and providing support in the data analysis process. This paper makes use of the following ALMA data: ADS/JAO.ALMA#2021.1.00793.S. ALMA is a partnership of ESO (representing its member states), NSF (USA) and NINS (Japan), together with NRC (Canada), MOST and ASIAA (Taiwan), and KASI (Republic of Korea), in cooperation with the Republic of Chile. The Joint ALMA Observatory is operated by ESO, AUI/NRAO and NAOJ. This project was supported by the European Research Council (ERC) Consolidator Grant 864361 (CosmicWeb) and by Fondazione Cariplo grant no. 2020-0902. M.M. was supported in part by grant HST-GO-17065. This research made use of Astropy (http://www.astropy.org), a community-developed core Python package for Astronomy (Astropy Collaboration 2013, 2018), NumPy (Harris et al. 2020), SciPy (Virtanen et al. 2020), Matplotlib (Hunter 2007), and Statsmodel (Seabold & Perktold 2010).' article_number: A119 article_processing_charge: Yes (in subscription journal) article_type: original arxiv: 1 author: - first_name: A. full_name: Pensabene, A. last_name: Pensabene - first_name: S. full_name: Cantalupo, S. last_name: Cantalupo - first_name: C. full_name: Cicone, C. last_name: Cicone - first_name: R. full_name: Decarli, R. last_name: Decarli - first_name: M. full_name: Galbiati, M. last_name: Galbiati - first_name: M. full_name: Ginolfi, M. last_name: Ginolfi - first_name: S. full_name: De Beer, S. last_name: De Beer - first_name: M. full_name: Fossati, M. last_name: Fossati - first_name: M. full_name: Fumagalli, M. last_name: Fumagalli - first_name: T. full_name: Lazeyras, T. last_name: Lazeyras - first_name: G. full_name: Pezzulli, G. last_name: Pezzulli - first_name: A. full_name: Travascio, A. last_name: Travascio - first_name: W. full_name: Wang, W. last_name: Wang - first_name: Jorryt J full_name: Matthee, Jorryt J id: 7439a258-f3c0-11ec-9501-9df22fe06720 last_name: Matthee orcid: 0000-0003-2871-127X - first_name: M. V. full_name: Maseda, M. V. last_name: Maseda citation: ama: 'Pensabene A, Cantalupo S, Cicone C, et al. ALMA survey of a massive node of the Cosmic Web at z ∼ 3: I. Discovery of a large overdensity of CO emitters. Astronomy & Astrophysics. 2024;684. doi:10.1051/0004-6361/202348659' apa: 'Pensabene, A., Cantalupo, S., Cicone, C., Decarli, R., Galbiati, M., Ginolfi, M., … Maseda, M. V. (2024). ALMA survey of a massive node of the Cosmic Web at z ∼ 3: I. Discovery of a large overdensity of CO emitters. Astronomy & Astrophysics. EDP Sciences. https://doi.org/10.1051/0004-6361/202348659' chicago: 'Pensabene, A., S. Cantalupo, C. Cicone, R. Decarli, M. Galbiati, M. Ginolfi, S. De Beer, et al. “ALMA Survey of a Massive Node of the Cosmic Web at z ∼ 3: I. Discovery of a Large Overdensity of CO Emitters.” Astronomy & Astrophysics. EDP Sciences, 2024. https://doi.org/10.1051/0004-6361/202348659.' ieee: 'A. Pensabene et al., “ALMA survey of a massive node of the Cosmic Web at z ∼ 3: I. Discovery of a large overdensity of CO emitters,” Astronomy & Astrophysics, vol. 684. EDP Sciences, 2024.' ista: 'Pensabene A, Cantalupo S, Cicone C, Decarli R, Galbiati M, Ginolfi M, De Beer S, Fossati M, Fumagalli M, Lazeyras T, Pezzulli G, Travascio A, Wang W, Matthee JJ, Maseda MV. 2024. ALMA survey of a massive node of the Cosmic Web at z ∼ 3: I. Discovery of a large overdensity of CO emitters. Astronomy & Astrophysics. 684, A119.' mla: 'Pensabene, A., et al. “ALMA Survey of a Massive Node of the Cosmic Web at z ∼ 3: I. Discovery of a Large Overdensity of CO Emitters.” Astronomy & Astrophysics, vol. 684, A119, EDP Sciences, 2024, doi:10.1051/0004-6361/202348659.' short: A. Pensabene, S. Cantalupo, C. Cicone, R. Decarli, M. Galbiati, M. Ginolfi, S. De Beer, M. Fossati, M. Fumagalli, T. Lazeyras, G. Pezzulli, A. Travascio, W. Wang, J.J. Matthee, M.V. Maseda, Astronomy & Astrophysics 684 (2024). das_tickbox: '0' date_created: 2024-04-21T22:00:53Z date_published: 2024-04-01T00:00:00Z date_updated: 2026-10-15T09:19:58Z day: '01' ddc: - '520' department: - _id: JoMa doi: 10.1051/0004-6361/202348659 external_id: arxiv: - '2401.04765' isi: - '001199982500009' file: - access_level: open_access checksum: ab48775b6946cebfa27ddded5a68fdd2 content_type: application/pdf creator: dernst date_created: 2024-04-23T06:59:18Z date_updated: 2024-04-23T06:59:18Z file_id: '15341' file_name: 2024_AstronomyAstrophysics_Pensabene.pdf file_size: 4410627 relation: main_file success: 1 file_date_updated: 2024-04-23T06:59:18Z fulldoi: https://doi.org/10.1051/0004-6361/202348659 has_accepted_license: '1' intvolume: ' 684' isi: 1 language: - iso: eng month: '04' oa: 1 oa_version: Published Version publication: Astronomy & Astrophysics publication_identifier: eissn: - 1432-0746 issn: - 0004-6361 publication_status: published publisher: EDP Sciences quality_controlled: '1' researchdata_availability: no scopus_import: '1' status: public supplementarymaterial: no title: 'ALMA survey of a massive node of the Cosmic Web at z ∼ 3: I. Discovery of a large overdensity of CO emitters' tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 684 year: '2024' ... --- DOAJ_listed: '1' _id: '18069' abstract: - lang: eng text: We present results from the JWST First Reionization Epoch Spectroscopically Complete Observations survey on the star-forming sequence (SFS) of galaxies at 1.0 < z < 1.7, around the peak of the cosmic star formation history. Star formation rates (SFRs) are measured from the redshifted, relatively dust-insensitive Paschen-α emission line, and stellar mass measurements include the F444W (4.4 μm; rest-frame H) band. We find SFRs of galaxies with log(M*/M⊙) > 9.5 that are lower than found in many earlier studies by up to 0.6 dex, but in good agreement with recent results obtained with the Prospector fitting framework. The difference (log(SFR(Paα)-SFR(Prospector)) is −0.09 ± 0.04 dex at 1010−11M⊙. We also measure the empirical relation between Paschen-α luminosity and rest-frame H-band magnitude and find that the scatter is only 0.04 dex lower than that of the SFR–M* relation and is much lower than the systematic differences among relations in the literature due to various methods of converting observed measurements to physical properties. We additionally identify examples of sources—that, with standard cutoffs via the UVJ diagram, would be deemed quiescent—with significant (log(sSFR)> −11 yr−1), typically extended, Paschen-α emission. Our results may be indicative of the potential unification of methods used to derive the SFS with careful selection of star-forming galaxies and independent SFR and stellar mass indicators. acknowledgement: "The authors thank the anonymous referee whose comments and suggestions improved the quality of this work.\r\nThis work is based on observations made with the NASA/ESA/CSA James Webb Space Telescope. The data were obtained from the Mikulski Archive for Space Telescopes at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-03127 for JWST. These observations are associated with program No. 1895.\r\nSupport for this work was provided by NASA through grant JWST-GO-01895 awarded by the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555.\r\nThis work has received funding from the Swiss State Secretariat for Education, Research, and Innovation (SERI) under contract No. MB22.00072, as well as from the Swiss National Science Foundation (SNSF) through project grant 200020_207349. The Cosmic Dawn Center (DAWN) is funded by the Danish National Research Foundation under grant No. 140.\r\nR.P.N. acknowledges funding from JWST programs GO-1933 and GO-2279. Support for this work was provided by NASA through the NASA Hubble Fellowship grant HST-HF2-51515.001-A awarded by the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555\r\nCloud-based data processing and file storage for this work is provided by the AWS Cloud Credits for Research program.\r\nThis paper made use of several publicly available software packages. We thank the respective authors for sharing their work: IPython (Pérez & Granger 2007), matplotlib (Hunter 2007), seaborn (Waskom et al. 2018), NumPy (Harris et al. 2020), SciPy (Virtanen et al. 2020), jupyter (Kluyver et al. 2016), Astropy (Astropy Collaboration et al. 2013, 2018, 2022), grizli (Brammer 2018; Brammer et al. 2022), Prospector (Leja et al. 2019, 2017; Johnson et al. 2021), FSPS (Conroy et al. 2009a, 2010; Conroy & Gunn 2010a, 2010b; Foreman-Mackey et al. 2014), dynesty (Speagle 2020), EAZY (Brammer et al. 2008), Bagpipes (Carnall et al. 2018), and SExtractor (Bertin & Arnouts 1996)." article_number: '156' article_processing_charge: Yes article_type: original author: - first_name: Chloe full_name: Neufeld, Chloe last_name: Neufeld - first_name: Pieter full_name: Van Dokkum, Pieter last_name: Van Dokkum - first_name: Yasmeen full_name: Asali, Yasmeen last_name: Asali - first_name: Alba full_name: Covelo-Paz, Alba last_name: Covelo-Paz - first_name: Joel full_name: Leja, Joel last_name: Leja - first_name: Jamie full_name: Lin, Jamie last_name: Lin - first_name: Jorryt J full_name: Matthee, Jorryt J id: 7439a258-f3c0-11ec-9501-9df22fe06720 last_name: Matthee orcid: 0000-0003-2871-127X - first_name: Pascal A. full_name: Oesch, Pascal A. last_name: Oesch - first_name: Naveen A. full_name: Reddy, Naveen A. last_name: Reddy - first_name: Irene full_name: Shivaei, Irene last_name: Shivaei - first_name: Katherine E. full_name: Whitaker, Katherine E. last_name: Whitaker - first_name: Stijn full_name: Wuyts, Stijn last_name: Wuyts - first_name: Gabriel full_name: Brammer, Gabriel last_name: Brammer - first_name: Danilo full_name: Marchesini, Danilo last_name: Marchesini - first_name: Michael V. full_name: Maseda, Michael V. last_name: Maseda - first_name: Rohan P. full_name: Naidu, Rohan P. last_name: Naidu - first_name: Erica J. full_name: Nelson, Erica J. last_name: Nelson - first_name: Anna full_name: Velichko, Anna last_name: Velichko - first_name: Andrea full_name: Weibel, Andrea last_name: Weibel - first_name: Mengyuan full_name: Xiao, Mengyuan last_name: Xiao citation: ama: 'Neufeld C, Van Dokkum P, Asali Y, et al. FRESCO: The Paschen-α star-forming sequence at cosmic noon. Astrophysical Journal. 2024;972(2). doi:10.3847/1538-4357/ad6158' apa: 'Neufeld, C., Van Dokkum, P., Asali, Y., Covelo-Paz, A., Leja, J., Lin, J., … Xiao, M. (2024). FRESCO: The Paschen-α star-forming sequence at cosmic noon. Astrophysical Journal. IOP Publishing. https://doi.org/10.3847/1538-4357/ad6158' chicago: 'Neufeld, Chloe, Pieter Van Dokkum, Yasmeen Asali, Alba Covelo-Paz, Joel Leja, Jamie Lin, Jorryt J Matthee, et al. “FRESCO: The Paschen-α Star-Forming Sequence at Cosmic Noon.” Astrophysical Journal. IOP Publishing, 2024. https://doi.org/10.3847/1538-4357/ad6158.' ieee: 'C. Neufeld et al., “FRESCO: The Paschen-α star-forming sequence at cosmic noon,” Astrophysical Journal, vol. 972, no. 2. IOP Publishing, 2024.' ista: 'Neufeld C, Van Dokkum P, Asali Y, Covelo-Paz A, Leja J, Lin J, Matthee JJ, Oesch PA, Reddy NA, Shivaei I, Whitaker KE, Wuyts S, Brammer G, Marchesini D, Maseda MV, Naidu RP, Nelson EJ, Velichko A, Weibel A, Xiao M. 2024. FRESCO: The Paschen-α star-forming sequence at cosmic noon. Astrophysical Journal. 972(2), 156.' mla: 'Neufeld, Chloe, et al. “FRESCO: The Paschen-α Star-Forming Sequence at Cosmic Noon.” Astrophysical Journal, vol. 972, no. 2, 156, IOP Publishing, 2024, doi:10.3847/1538-4357/ad6158.' short: C. Neufeld, P. Van Dokkum, Y. Asali, A. Covelo-Paz, J. Leja, J. Lin, J.J. Matthee, P.A. Oesch, N.A. Reddy, I. Shivaei, K.E. Whitaker, S. Wuyts, G. Brammer, D. Marchesini, M.V. Maseda, R.P. Naidu, E.J. Nelson, A. Velichko, A. Weibel, M. Xiao, Astrophysical Journal 972 (2024). das_tickbox: '1' dataavailabilitystatement: The JWST data presented in this article were obtained from the Mikulski Archive for Space Telescopes (MAST) at the Space Telescope Science Institute. The specific observations analyzed can be accessed on the MAST website. 26 date_created: 2024-09-15T22:01:40Z date_published: 2024-09-01T00:00:00Z date_updated: 2026-10-15T09:22:54Z day: '01' ddc: - '520' department: - _id: JoMa doi: 10.3847/1538-4357/ad6158 external_id: isi: - '001305987600001' file: - access_level: open_access checksum: 754b58c1d79adb9670ca76fa8c20ab16 content_type: application/pdf creator: dernst date_created: 2024-09-17T08:23:59Z date_updated: 2024-09-17T08:23:59Z file_id: '18082' file_name: 2024_AstrophysicalJourn_Neufeld.pdf file_size: 9960685 relation: main_file success: 1 file_date_updated: 2024-09-17T08:23:59Z fulldoi: https://doi.org/10.3847/1538-4357/ad6158 has_accepted_license: '1' intvolume: ' 972' isi: 1 issue: '2' language: - iso: eng month: '09' oa: 1 oa_version: Published Version publication: Astrophysical Journal publication_identifier: eissn: - 1538-4357 issn: - 0004-637X publication_status: published publisher: IOP Publishing quality_controlled: '1' researchdata_availability: yes scopus_import: '1' status: public supplementarymaterial: yes title: 'FRESCO: The Paschen-α star-forming sequence at cosmic noon' tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 972 year: '2024' ...