---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
PlanS_conform: '1'
_id: '20974'
abstract:
- lang: eng
text: "Thus far, Lyman-α damping wings towards quasars have been used to probe the
global ionization state of the foreground intergalactic medium (IGM). A new parametrization
has demonstrated that the damping wing signature also carries local information
about the distribution of neutral hydrogen (H I) in front of the quasar before
it started shining. Leveraging a recently introduced Bayesian JAX-based Hamiltonian
Monte Carlo inference framework, we derive constraints on the Lorentzian-weighted
H I column density NDW H I , the quasar’s distance rpatch to the first neutral
patch, and its lifetime tQ based on James Webb Space\r\nTelescope (JWST) Near
Infrared Spectrograph (NIRSpec) spectra of the two z ∼ 7.5 quasars J1007+2115
and J1342+0928. After folding in model-dependent topology information, we find
that J1007+2115 (and J1342+0928) is most likely to reside in a (xH1)= 0.32+0.22
−0.20 (0.58+0.23 −0.23) neutral IGM while shining for a remarkably short lifetime
of log10 tQ/yr = 4.14+0.74 −0.18 (an intermediate lifetime of 5.64+0.25 −0.43)
along a sightline with log10 NDW\r\nH I /cm−2 = 19.70+0.35 −0.86 (20.24+0.25 −0.22)
and rpatch = 28.9+54.0 −14.4 cMpc\r\n(10.9+5.6−5.9 cMpc). In light of the potential
presence of local absorbers in the foreground of J1342+0928 as has been recently
suggested, we also demonstrate how the Lorentzian-weighted column density NDW
H I provides a natural means for quantifying their contribution to the observed
damping wing signal."
acknowledgement: 'We acknowledge helpful conversations with the ENIGMA group at UC
Santa Barbara and Leiden University. 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. These observations are associated with programmes #1219 and #1764. This
work made use of numpy (C. R. Harris et al. 2020), scipy (P. Virtanen et al. 2020),
jax (J. Bradbury et al. 2018), numpyro (E. Bingham et al. 2018; D. Phan, N. Pradhan
& M. Jankowiak 2019), sklearn (F. Pedregosa et al. 2011), astropy (Astropy Collaboration
2013, 2018, 2022), PypeIt (J. Prochaska et al. 2020), skycalc_ipy (K. Leschinski
2021), h5py (A. Collette 2013), matplotlib (J. D. Hunter 2007), corner.py (D. Foreman-Mackey
2016), and IPython (F. Pérez & B. E. Granger 2007). TK and JFH acknowledge support
from the European Research Council (ERC) under the European Union’s Horizon 2020
research and innovation programme (grant agreement no. 885301). JFH acknowledges
support from NSF grant no. 2307180. SEIB was supported by the Deutsche Forschungsgemeinschaft
(DFG) under Emmy Noether grant number BO 5771/1-1. FW acknowledges support from
NSF award AST-2513040.'
article_number: staf2219
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: Timo
full_name: Kist, Timo
last_name: Kist
- first_name: Joseph F.
full_name: Hennawi, Joseph F.
last_name: Hennawi
- first_name: Frederick B.
full_name: Davies, Frederick B.
last_name: Davies
- first_name: Eduardo
full_name: Bañados, Eduardo
last_name: Bañados
- first_name: Sarah E.I.
full_name: Bosman, Sarah E.I.
last_name: Bosman
- first_name: Zheng
full_name: Cai, Zheng
last_name: Cai
- first_name: Anna Christina
full_name: Eilers, Anna Christina
last_name: Eilers
- first_name: Xiaohui
full_name: Fan, Xiaohui
last_name: Fan
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
orcid: 0000-0003-3633-5403
- first_name: Hyunsung D.
full_name: Jun, Hyunsung D.
last_name: Jun
- first_name: Yichen
full_name: Liu, Yichen
last_name: Liu
- first_name: Jinyi
full_name: Yang, Jinyi
last_name: Yang
- first_name: Feige
full_name: Wang, Feige
last_name: Wang
citation:
ama: Kist T, Hennawi JF, Davies FB, et al. First constraints on the local ionization
topology in front of two quasars at z ∼ 7.5. Monthly Notices of the Royal Astronomical
Society. 2026;545(3). doi:10.1093/mnras/staf2219
apa: Kist, T., Hennawi, J. F., Davies, F. B., Bañados, E., Bosman, S. E. I., Cai,
Z., … Wang, F. (2026). First constraints on the local ionization topology in front
of two quasars at z ∼ 7.5. Monthly Notices of the Royal Astronomical Society.
Oxford University Press. https://doi.org/10.1093/mnras/staf2219
chicago: Kist, Timo, Joseph F. Hennawi, Frederick B. Davies, Eduardo Bañados, Sarah
E.I. Bosman, Zheng Cai, Anna Christina Eilers, et al. “First Constraints on the
Local Ionization Topology in Front of Two Quasars at z ∼ 7.5.” Monthly Notices
of the Royal Astronomical Society. Oxford University Press, 2026. https://doi.org/10.1093/mnras/staf2219.
ieee: T. Kist et al., “First constraints on the local ionization topology
in front of two quasars at z ∼ 7.5,” Monthly Notices of the Royal Astronomical
Society, vol. 545, no. 3. Oxford University Press, 2026.
ista: Kist T, Hennawi JF, Davies FB, Bañados E, Bosman SEI, Cai Z, Eilers AC, Fan
X, Haiman Z, Jun HD, Liu Y, Yang J, Wang F. 2026. First constraints on the local
ionization topology in front of two quasars at z ∼ 7.5. Monthly Notices of the
Royal Astronomical Society. 545(3), staf2219.
mla: Kist, Timo, et al. “First Constraints on the Local Ionization Topology in Front
of Two Quasars at z ∼ 7.5.” Monthly Notices of the Royal Astronomical Society,
vol. 545, no. 3, staf2219, Oxford University Press, 2026, doi:10.1093/mnras/staf2219.
short: T. Kist, J.F. Hennawi, F.B. Davies, E. Bañados, S.E.I. Bosman, Z. Cai, A.C.
Eilers, X. Fan, Z. Haiman, H.D. Jun, Y. Liu, J. Yang, F. Wang, Monthly Notices
of the Royal Astronomical Society 545 (2026).
date_created: 2026-01-11T23:01:34Z
date_published: 2026-01-01T00:00:00Z
date_updated: 2026-01-12T09:45:54Z
day: '01'
ddc:
- '520'
department:
- _id: ZoHa
doi: 10.1093/mnras/staf2219
external_id:
arxiv:
- '2508.21818'
file:
- access_level: open_access
checksum: 68f04ab0fdcee4f12341d116c5f794cd
content_type: application/pdf
creator: dernst
date_created: 2026-01-12T09:43:07Z
date_updated: 2026-01-12T09:43:07Z
file_id: '20979'
file_name: 2026_MonthNoticesRAS_Kist.pdf
file_size: 2174272
relation: main_file
success: 1
file_date_updated: 2026-01-12T09:43:07Z
has_accepted_license: '1'
intvolume: ' 545'
issue: '3'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
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: First constraints on the local ionization topology in front of two quasars
at z ∼ 7.5
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: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 545
year: '2026'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
PlanS_conform: '1'
_id: '21038'
abstract:
- lang: eng
text: "Little Red Dots (LRDs) are compact sources at z > 5 discovered through James
Webb Space Telescope spectroscopy. Their spectra exhibit broad Balmer emission
lines (>~1000 km s^−1), alongside absorption features and a pronounced Balmer
break – evidence for a dense, neutral hydrogen medium, in which the n = 2 state
is significantly populated. When interpreted as arising\r\nfrom active galactic
nucleus broad-line regions, inferred black hole masses from local scaling relations
exceed expectations given their stellar masses, challenging models of early black
hole–galaxy co-evolution. However, radiative transfer effects in dense media may
also impact the formation of hydrogen emission lines. We model three scattering
processes shaping hydrogen\r\nline profiles: resonance scattering by hydrogen
in the n = 2 state, Raman scattering of ultraviolet (UV) radiation by ground-state
hydrogen, and Thomson scattering by free electrons. Using 3D Monte Carlo radiative
transfer simulations, we examine their imprint on line shapes and ratios. Resonance
scattering produces strong deviations from Case B flux ratios, clear differences\r\nbetween
Hα and Hβ, and encodes gas kinematics in line profiles but cannot broaden Hβ due
to conversion to Paα. While Raman scattering can yield broad wings, scattering
of the UV continuum is disfavoured given the absence of strong full width at half-maximum
variations across transitions. Raman scattering of higher Lyman-series emission
can produce Hα/Hβ wing\r\nwidth ratios of >~1.28, agreeing with observations.
Thomson scattering can reproduce the observed >~ 1000 km s^−1 wings under plausible
conditions – e.g. Te ∼ 10^4 K and Ne ∼ 10^24 cm^−2 – and lead to black hole mass
overestimates by factors 10. Our results provide a framework for interpreting
hydrogen lines in LRDs and similar systems."
acknowledgement: "The authorsthank the anonymousreferee for constructive comments,
which improved the clarity of this paper. SJC acknowledges support from the ERC
synergy grant 101166930 – RECAP. MG thanks the Max Planck Society for support through
the Max Planck Research Group, and the European Union forsupport through ERC-2024-STG
101165038 (ReMMU). JM acknowledges funding by the European Union (ERC, AGENTS, 101076224).
CAM acknowledges support\r\nby the European Union ERC grant RISES (101163035), Carlsberg
Foundation (CF22-1322), and VILLUM FONDEN (37459). Computations were performed on
HPC systems Freya and Orion at the Max Planck Computing and Data Facility."
article_number: staf2131
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: Seok Jun
full_name: Chang, Seok Jun
last_name: Chang
- first_name: Max
full_name: Gronke, Max
last_name: Gronke
- 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: Charlotte
full_name: Mason, Charlotte
last_name: Mason
citation:
ama: Chang SJ, Gronke M, Matthee JJ, Mason C. Impact of resonance, Raman, and Thomson
scattering on hydrogen line formation in Little Red Dots. Monthly Notices of
the Royal Astronomical Society. 2026;545(4). doi:10.1093/mnras/staf2131
apa: Chang, S. J., Gronke, M., Matthee, J. J., & Mason, C. (2026). Impact of
resonance, Raman, and Thomson scattering on hydrogen line formation in Little
Red Dots. Monthly Notices of the Royal Astronomical Society. Oxford University
Press. https://doi.org/10.1093/mnras/staf2131
chicago: Chang, Seok Jun, Max Gronke, Jorryt J Matthee, and Charlotte Mason. “Impact
of Resonance, Raman, and Thomson Scattering on Hydrogen Line Formation in Little
Red Dots.” Monthly Notices of the Royal Astronomical Society. Oxford University
Press, 2026. https://doi.org/10.1093/mnras/staf2131.
ieee: S. J. Chang, M. Gronke, J. J. Matthee, and C. Mason, “Impact of resonance,
Raman, and Thomson scattering on hydrogen line formation in Little Red Dots,”
Monthly Notices of the Royal Astronomical Society, vol. 545, no. 4. Oxford
University Press, 2026.
ista: Chang SJ, Gronke M, Matthee JJ, Mason C. 2026. Impact of resonance, Raman,
and Thomson scattering on hydrogen line formation in Little Red Dots. Monthly
Notices of the Royal Astronomical Society. 545(4), staf2131.
mla: Chang, Seok Jun, et al. “Impact of Resonance, Raman, and Thomson Scattering
on Hydrogen Line Formation in Little Red Dots.” Monthly Notices of the Royal
Astronomical Society, vol. 545, no. 4, staf2131, Oxford University Press,
2026, doi:10.1093/mnras/staf2131.
short: S.J. Chang, M. Gronke, J.J. Matthee, C. Mason, Monthly Notices of the Royal
Astronomical Society 545 (2026).
date_created: 2026-01-25T23:01:39Z
date_published: 2026-02-01T00:00:00Z
date_updated: 2026-02-12T12:56:33Z
day: '01'
ddc:
- '520'
department:
- _id: JoMa
doi: 10.1093/mnras/staf2131
external_id:
arxiv:
- '2508.08768'
file:
- access_level: open_access
checksum: 52ba7d7b5b80af0c50f57e4c2acc3930
content_type: application/pdf
creator: dernst
date_created: 2026-02-12T12:44:33Z
date_updated: 2026-02-12T12:44:33Z
file_id: '21220'
file_name: 2026_MonthNoticesRAS_Chang.pdf
file_size: 5600366
relation: main_file
success: 1
file_date_updated: 2026-02-12T12:44:33Z
has_accepted_license: '1'
intvolume: ' 545'
issue: '4'
language:
- iso: eng
month: '02'
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: 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: Impact of resonance, Raman, and Thomson scattering on hydrogen line formation
in 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: 545
year: '2026'
...
---
OA_place: publisher
OA_type: gold
_id: '19840'
abstract:
- lang: eng
text: "We report the discovery of two new magnetic cataclysmic variables with brown
dwarf companions and long orbital periods (P_{\\rm orb}=95\\pm1 and 104\\pm2 min).
This discovery increases the sample of candidate magnetic period bouncers with
confirmed sub-stellar donors from four to six. We also find their X-ray luminosity
from archival XMM–Newton observations to be in the range L_{\\rm X}\\approx10^{28}-10^{29}
\\mathrm{erg\\,s^{-1}} in the 0.25–10 keV band. This low luminosity is comparable
with the other candidates, and at least an order of magnitude lower than the X-ray
luminosities typically measured in cataclysmic variables. The X-ray fluxes imply
mass transfer rates that are much lower than predicted by evolutionary models,
even if some of the discrepancy is due to the accretion energy being emitted in
other bands, such as via cyclotron emission at infrared wavelengths. Although
it is possible that some or all of these systems formed directly as binaries containing
a brown dwarf, it is likely that the donor used to be a low-mass star and that
the systems followed the evolutionary track for cataclysmic variables, evolving
past the period bounce. The donor in long period systems is expected to be a low-mass,
cold brown dwarf. This hypothesis is supported by near-infrared photometric observations
that constrain the donors in the two systems to be brown dwarfs cooler than \r\n1100 K
(spectral types T5 or later), most likely losing mass via Roche Lobe overflow
or winds. The serendipitous discovery of two magnetic period bouncers in the small
footprint of the XMM–Newton catalogue implies a large space density of these type
of systems, possibly compatible with the prediction of 40–70 per cent of magnetic
cataclysmic variables to be period bouncers."
acknowledgement: "We thank Matthias Schreiber for his insightful comments. Support
for this work was provided by NASA through the NASA Hubble Fellowship grant HST-HF2-51527.001-A
awarded by the Space Telescope Science Institute, which is operated by the Association
of Universities for Research in Astronomy, Inc., for NASA, under contract NAS5-26555.
Support for this work was provided by NASA through Chandra Award Number GO4-25014X
issued by the Chandra X-ray Center, which is operated by the Smithsonian Astrophysical
Observatory for and on behalf of NASA under contract NAS8-03060. IC was also supported
by NASA through grants from the Space Telescope Science Institute, under NASA contracts
NASA.22K1813, NAS5-26555, and NAS5-03127. This project has received funding from
the European Research Council (ERC) under the European Union’s Horizon 2020 research
and innovation programme (grant agreement no. 101020057). This research was supported
in part by grant NSF PHY-1748958 to the Kavli Institute for Theoretical Physics
(KITP). PJW acknowledges support from the UK Science and Technology Facilities Council
(STFC) through consolidated grants ST/T000406/1 and ST/X001121/1. RA was supported
by NASA through the NASA Hubble Fellowship grant #HST-HF2-51499.001-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.\r\n\r\nThis
research has made use of data obtained from the 4XMM XMM–Newton Serendipitous Source
Catalogue compiled by the 10 institutes of the XMM–Newton Survey Science Centre
selected by ESA. This work has made use of data from the European Space Agency (ESA)
mission Gaia (https://www.cosmos.esa.int/gaia), processed by the Gaia Data Processing
and Analysis Consortium (DPAC, https://www.cosmos.esa.int/web/gaia/dpac/consortium).
Funding for the DPAC has been provided by national institutions, in particular the
institutions participating in the Gaia Multilateral Agreement. The Pan-STARRS1 Surveys
(PS1) and the PS1 public science archive have been made possible through contributions
by the Institute for Astronomy, the University of Hawaii, the Pan-STARRS Project
Office, the Max-Planck Society and its participating institutes, the Max Planck
Institute for Astronomy, Heidelberg and the Max Planck Institute for Extraterrestrial
Physics, Garching, The Johns Hopkins University, Durham University, the University
of Edinburgh, the Queen’s University Belfast, the Harvard–Smithsonian Center for
Astrophysics, the Las Cumbres Observatory Global Telescope Network Incorporated,
the National Central University of Taiwan, the Space Telescope Science Institute,
the National Aeronautics and Space Administration under grant no. NNX08AR22G issued
through the Planetary Science Division of the NASA Science Mission Directorate,
the National Science Foundation grant no. AST–1238877, the University of Maryland,
Eotvos Lorand University (ELTE), the Los Alamos National Laboratory, and the Gordon
and Betty Moore Foundation. This work is based in part on data obtained as part
of the UKIDSS. This research made use of hips2fits,4 a service provided by CDS,
and of astropy (Astropy Collaboration 2013)."
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: Tim
full_name: Cunningham, Tim
last_name: Cunningham
- first_name: Ilaria
full_name: Caiazzo, Ilaria
id: 8ae5b6e7-2a03-11ee-914d-b58ed7a3b47d
last_name: Caiazzo
orcid: 0000-0002-4770-5388
- first_name: Gracjan
full_name: Sienkiewicz, Gracjan
last_name: Sienkiewicz
- first_name: Peter J.
full_name: Wheatley, Peter J.
last_name: Wheatley
- first_name: Boris T.
full_name: Gänsicke, Boris T.
last_name: Gänsicke
- first_name: Kareem
full_name: El-Badry, Kareem
last_name: El-Badry
- first_name: Riccardo
full_name: Arcodia, Riccardo
last_name: Arcodia
- first_name: David
full_name: Charbonneau, David
last_name: Charbonneau
- first_name: Liam
full_name: Connor, Liam
last_name: Connor
- first_name: Kishalay
full_name: De, Kishalay
last_name: De
- first_name: Pasi
full_name: Hakala, Pasi
last_name: Hakala
- first_name: Scott J.
full_name: Kenyon, Scott J.
last_name: Kenyon
- first_name: Sumit Kumar
full_name: Maheshwari, Sumit Kumar
last_name: Maheshwari
- first_name: Antonio C.
full_name: Rodriguez, Antonio C.
last_name: Rodriguez
- first_name: Jan
full_name: Van Roestel, Jan
last_name: Van Roestel
- first_name: Pier Emmanuel
full_name: Tremblay, Pier Emmanuel
last_name: Tremblay
citation:
ama: Cunningham T, Caiazzo I, Sienkiewicz G, et al. Discovery of two new polars
evolved past the period bounce. Monthly Notices of the Royal Astronomical Society.
2025;540(1):633-649. doi:10.1093/mnras/staf561
apa: Cunningham, T., Caiazzo, I., Sienkiewicz, G., Wheatley, P. J., Gänsicke, B.
T., El-Badry, K., … Tremblay, P. E. (2025). Discovery of two new polars evolved
past the period bounce. Monthly Notices of the Royal Astronomical Society.
Oxford University Press. https://doi.org/10.1093/mnras/staf561
chicago: Cunningham, Tim, Ilaria Caiazzo, Gracjan Sienkiewicz, Peter J. Wheatley,
Boris T. Gänsicke, Kareem El-Badry, Riccardo Arcodia, et al. “Discovery of Two
New Polars Evolved Past the Period Bounce.” Monthly Notices of the Royal Astronomical
Society. Oxford University Press, 2025. https://doi.org/10.1093/mnras/staf561.
ieee: T. Cunningham et al., “Discovery of two new polars evolved past the
period bounce,” Monthly Notices of the Royal Astronomical Society, vol.
540, no. 1. Oxford University Press, pp. 633–649, 2025.
ista: Cunningham T, Caiazzo I, Sienkiewicz G, Wheatley PJ, Gänsicke BT, El-Badry
K, Arcodia R, Charbonneau D, Connor L, De K, Hakala P, Kenyon SJ, Maheshwari SK,
Rodriguez AC, Van Roestel J, Tremblay PE. 2025. Discovery of two new polars evolved
past the period bounce. Monthly Notices of the Royal Astronomical Society. 540(1),
633–649.
mla: Cunningham, Tim, et al. “Discovery of Two New Polars Evolved Past the Period
Bounce.” Monthly Notices of the Royal Astronomical Society, vol. 540, no.
1, Oxford University Press, 2025, pp. 633–49, doi:10.1093/mnras/staf561.
short: T. Cunningham, I. Caiazzo, G. Sienkiewicz, P.J. Wheatley, B.T. Gänsicke,
K. El-Badry, R. Arcodia, D. Charbonneau, L. Connor, K. De, P. Hakala, S.J. Kenyon,
S.K. Maheshwari, A.C. Rodriguez, J. Van Roestel, P.E. Tremblay, Monthly Notices
of the Royal Astronomical Society 540 (2025) 633–649.
date_created: 2025-06-15T22:01:29Z
date_published: 2025-06-01T00:00:00Z
date_updated: 2025-09-30T12:50:33Z
day: '01'
ddc:
- '520'
department:
- _id: IlCa
doi: 10.1093/mnras/staf561
external_id:
arxiv:
- '2503.12675'
isi:
- '001493143700001'
file:
- access_level: open_access
checksum: 5e675d3696c222e919d6916bad194b01
content_type: application/pdf
creator: dernst
date_created: 2025-06-23T07:28:36Z
date_updated: 2025-06-23T07:28:36Z
file_id: '19864'
file_name: 2025_MonthlyNoticesRAS_Cunningham.pdf
file_size: 3212636
relation: main_file
success: 1
file_date_updated: 2025-06-23T07:28:36Z
has_accepted_license: '1'
intvolume: ' 540'
isi: 1
issue: '1'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
page: 633-649
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: Discovery of two new polars evolved past the period bounce
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: 540
year: '2025'
...
---
OA_place: publisher
OA_type: gold
_id: '19855'
abstract:
- lang: eng
text: We present indirect constraints on the absolute escape fraction of ionizing
photons (f_{\rm esc}^{\rm LyC}) of the system GN 42912 which comprises two luminous
galaxies (M_{\rm UV} magnitudes of -20.89 and -20.37) at z\sim7.5, GN 42912-NE
and GN 42912-SW, to determine their contribution to the ionizing photon budget
of the Epoch of Reionization (EoR). The high-resolution James Webb Space Telescope
NIRSpec and NIRCam observations reveal the two galaxies are separated by only
~0.1" (0.5 kpc) on the sky and have a 358 km s^{-1} velocity separation. GN 42912-NE
and GN 42912-SW are relatively massive for this redshift (log(M_\ast/M_\odot)
\sim 8.4 and 8.9, respectively), with gas-phase metallicities of 18 per cent and
23 per cent solar, O_{32} ratios of 5.3 and >5.8, and \beta slopes of -1.92 and
-1.51, respectively. We use the Mg II\lambda\lambda2796,2803 doublet to constrain
f_{\rm esc}^{\rm LyC}. Mg II has an ionization potential close to that of neutral
hydrogen and, in the optically thin regime, can be used as an indirect tracer
of the LyC leakage. We establish realistic conservative upper limits on f_{\rm
esc}^{\rm LyC} of 8.5 per cent for GN 42912-NE and 14 per cent for GN 42912-SW.
These estimates align with f_{\rm esc}^{\rm LyC} trends observed with \beta, O_{32},
and the H\beta equivalent width at z<4. The small inferred ionized region sizes
(<0.3 pMpc) around both galaxies indicate they have not ionized a significant
fraction of the surrounding neutral gas. While these z>7 f_{\rm esc}^{\rm LyC}
constraints do not decisively determine a specific reionization model, they support
a minor contribution from these two relatively luminous galaxies to the EoR.
acknowledgement: '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. These
observations are associated with program #01871. Support for program #01871 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. SG is grateful for the support enabled by the Harlan
J. Smith McDonald fellowship. YI and NG acknowledge support from the Simons Foundation
and the National Academy of Sciences of Ukraine (Project 0121U109612). ASL acknowledges
support from Knut and Alice Wallenberg Foundation.'
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: S.
full_name: Gazagnes, S.
last_name: Gazagnes
- first_name: J.
full_name: Chisholm, J.
last_name: Chisholm
- first_name: R.
full_name: Endsley, R.
last_name: Endsley
- first_name: D. A.
full_name: Berg, D. A.
last_name: Berg
- first_name: F.
full_name: Leclercq, F.
last_name: Leclercq
- first_name: N.
full_name: Jurlin, N.
last_name: Jurlin
- first_name: A.
full_name: Saldana-Lopez, A.
last_name: Saldana-Lopez
- first_name: S. L.
full_name: Finkelstein, S. L.
last_name: Finkelstein
- first_name: S. R.
full_name: Flury, S. R.
last_name: Flury
- first_name: N. G.
full_name: Guseva, N. G.
last_name: Guseva
- first_name: A.
full_name: Henry, A.
last_name: Henry
- first_name: Y. I.
full_name: Izotov, Y. I.
last_name: Izotov
- first_name: I.
full_name: Jung, I.
last_name: Jung
- 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: D.
full_name: Schaerer, D.
last_name: Schaerer
citation:
ama: Gazagnes S, Chisholm J, Endsley R, et al. A negligible contribution of two
luminous z ∼7.5 galaxies to the ionizing photon budget of reionization. Monthly
Notices of the Royal Astronomical Society. 2025;540(3):2331-2348. doi:10.1093/mnras/staf768
apa: Gazagnes, S., Chisholm, J., Endsley, R., Berg, D. A., Leclercq, F., Jurlin,
N., … Schaerer, D. (2025). A negligible contribution of two luminous z ∼7.5 galaxies
to the ionizing photon budget of reionization. Monthly Notices of the Royal
Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/staf768
chicago: Gazagnes, S., J. Chisholm, R. Endsley, D. A. Berg, F. Leclercq, N. Jurlin,
A. Saldana-Lopez, et al. “A Negligible Contribution of Two Luminous z ∼7.5 Galaxies
to the Ionizing Photon Budget of Reionization.” Monthly Notices of the Royal
Astronomical Society. Oxford University Press, 2025. https://doi.org/10.1093/mnras/staf768.
ieee: S. Gazagnes et al., “A negligible contribution of two luminous z ∼7.5
galaxies to the ionizing photon budget of reionization,” Monthly Notices of
the Royal Astronomical Society, vol. 540, no. 3. Oxford University Press,
pp. 2331–2348, 2025.
ista: Gazagnes S, Chisholm J, Endsley R, Berg DA, Leclercq F, Jurlin N, Saldana-Lopez
A, Finkelstein SL, Flury SR, Guseva NG, Henry A, Izotov YI, Jung I, Matthee JJ,
Schaerer D. 2025. A negligible contribution of two luminous z ∼7.5 galaxies to
the ionizing photon budget of reionization. Monthly Notices of the Royal Astronomical
Society. 540(3), 2331–2348.
mla: Gazagnes, S., et al. “A Negligible Contribution of Two Luminous z ∼7.5 Galaxies
to the Ionizing Photon Budget of Reionization.” Monthly Notices of the Royal
Astronomical Society, vol. 540, no. 3, Oxford University Press, 2025, pp.
2331–48, doi:10.1093/mnras/staf768.
short: S. Gazagnes, J. Chisholm, R. Endsley, D.A. Berg, F. Leclercq, N. Jurlin,
A. Saldana-Lopez, S.L. Finkelstein, S.R. Flury, N.G. Guseva, A. Henry, Y.I. Izotov,
I. Jung, J.J. Matthee, D. Schaerer, Monthly Notices of the Royal Astronomical
Society 540 (2025) 2331–2348.
date_created: 2025-06-22T22:02:05Z
date_published: 2025-07-01T00:00:00Z
date_updated: 2025-09-30T13:34:20Z
day: '01'
ddc:
- '520'
department:
- _id: JoMa
doi: 10.1093/mnras/staf768
external_id:
arxiv:
- '2410.03337'
isi:
- '001506103600001'
file:
- access_level: open_access
checksum: f912c990a0474f1ddf9be6b8a89c7759
content_type: application/pdf
creator: dernst
date_created: 2025-06-23T11:02:59Z
date_updated: 2025-06-23T11:02:59Z
file_id: '19870'
file_name: 2025_MonthlyNoticesRAS_Gazagnes.pdf
file_size: 3111567
relation: main_file
success: 1
file_date_updated: 2025-06-23T11:02:59Z
has_accepted_license: '1'
intvolume: ' 540'
isi: 1
issue: '3'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: 2331-2348
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: A negligible contribution of two luminous z ∼7.5 galaxies to the ionizing photon
budget 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: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 540
year: '2025'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
PlanS_conform: '1'
_id: '20027'
abstract:
- lang: eng
text: "We present the first results of the JWST Emission Line Survey (JELS). Utilizing
the first NIRCam narrow-band imaging at 4.7 μm, over 63 arcmin2 in the PRIMER/COSMOS
field, we have identified 609 emission line galaxy candidates. From these, we
robustly selected 35 H α star-forming galaxies at z ∼ 6.1, with H α star-formation
rates (SFRH α) of ∼ 0.9 − 15 M yr−1.\r\nCombining our unique H α sample with the
exquisite panchromatic data in the field, we explored their physical properties
and star-formation histories, and compared these to a broad-band selected sample
at z ∼ 6 which has offered vital new insights into the nature of high-redshift
galaxies. UV-continuum slopes (β) were considerably redder for our H α sample
(\x04β\x05 ∼ −1.92)\r\ncompared to the broad-band sample (\x04β\x05 ∼ −2.35).
This was not due to dust attenuation as our H α sample was relatively dustpoor
(median AV = 0.23); instead, we argue that the reddened slopes could be due to
nebular continuum. We compared SFRH α and the UV-continuum-derived SFRUV to SED-fitted
measurements averaged over canonical time-scales of 10 and 100 Myr (SFR10 and
SFR100). We found an increase in recent SFR for our sample of H α emitters, particularly
at lower stellar masses (< 109 M). We also found that SFRH α strongly traces SFR
averaged over 10 Myr time-scales, whereas the UV-continuum overpredicts SFR on
100 Myr time-scales at low stellar masses. These results point to our H α sample
undergoing ‘bursty’ star\r\nformation. Our F356W z ∼ 6 sample showed a larger
scatter in SFR10/SFR100 across all stellar masses, which has highlighted how narrow-band
photometric selections of H α emitters are key to quantifying the burstiness of
star-formation activity. "
acknowledgement: "The authors would like to thank Adam Carnall and Joel Leja for their
helpful advice with the SED fitting of our sample, Callum Donnan for his advice
on the selection techniques of high-redshift\r\ngalaxies, Alice Shapley for discussion
around H α SFR calibrations at high-redshift, Fred Jennings for providing insight
into the interpretation of SFR ratios, and the anonymous referee for their helpful
comments – all of which have greatly improved this paper. Several other authors
acknowledge the support of the UK Science and Technology Facilities Council (STFC)
via grants ST/W507441/1 (CAP), ST/V000594/1 (DJM, PNB, RK, and RJM), ST/Y000951/1
(PNB and RK) and ST/X001075/1 (AMS and IRS), and through an Ernest Rutherford Fellowship
(KJD; grant number ST/W003120/1). RKC was funded by support for programme #02321,
provided by\r\nNASA 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 NAS5-03127. RKC and CLH are both grateful for support
from the Leverhulme Trust via a Leverhulme Early Career Fellowship, and CLH also
acknowledges support from the Oxford Hintze Centre for Astrophysical Surveys which
is funded through generous support from the Hintze Family\r\nCharitable Foundation.
JSD acknowledges the support of the Royal Society via a Royal Society Research Professorship.
EI gratefully acknowledge financialsupport from ANID–MILENIO–NCN2024 112 and ANID
FONDECYT Regular 1221846. LOF acknowledges by ANID BECAS/DOCTORADO NACIONAL 21220499."
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: C. A.
full_name: Pirie, C. A.
last_name: Pirie
- first_name: P. N.
full_name: Best, P. N.
last_name: Best
- 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: R. K.
full_name: Cochrane, R. K.
last_name: Cochrane
- first_name: M.
full_name: Clausen, M.
last_name: Clausen
- 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: R.
full_name: Kondapally, R.
last_name: Kondapally
- 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: Ian
full_name: Smail, Ian
last_name: Smail
- first_name: D.
full_name: Sobral, D.
last_name: Sobral
- 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: A. M.
full_name: Swinbank, A. M.
last_name: Swinbank
citation:
ama: 'Pirie CA, Best PN, Duncan KJ, et al. The JWST Emission Line Survey (JELS):
An untargeted search for H α emission line galaxies at z > 6 and their physical
properties. Monthly Notices of the Royal Astronomical Society. 2025;541(2):1348-1376.
doi:10.1093/mnras/staf1006'
apa: 'Pirie, C. A., Best, P. N., Duncan, K. J., Mcleod, D. J., Cochrane, R. K.,
Clausen, M., … Swinbank, A. M. (2025). The JWST Emission Line Survey (JELS): An
untargeted search for H α emission line galaxies at z > 6 and their physical
properties. Monthly Notices of the Royal Astronomical Society. Oxford University
Press. https://doi.org/10.1093/mnras/staf1006'
chicago: 'Pirie, C. A., P. N. Best, K. J. Duncan, D. J. Mcleod, R. K. Cochrane,
M. Clausen, J. S. Dunlop, et al. “The JWST Emission Line Survey (JELS): An Untargeted
Search for H α Emission Line Galaxies at z > 6 and Their Physical Properties.”
Monthly Notices of the Royal Astronomical Society. Oxford University Press,
2025. https://doi.org/10.1093/mnras/staf1006.'
ieee: 'C. A. Pirie et al., “The JWST Emission Line Survey (JELS): An untargeted
search for H α emission line galaxies at z > 6 and their physical properties,”
Monthly Notices of the Royal Astronomical Society, vol. 541, no. 2. Oxford
University Press, pp. 1348–1376, 2025.'
ista: 'Pirie CA, Best PN, Duncan KJ, Mcleod DJ, Cochrane RK, Clausen M, Dunlop JS,
Flury SR, Geach JE, Hale CL, Ibar E, Kondapally R, Li Z, Matthee JJ, Mclure RJ,
Ossa-Fuentes L, Patrick AL, Smail I, Sobral D, Stephenson HMO, Stott JP, Swinbank
AM. 2025. The JWST Emission Line Survey (JELS): An untargeted search for H α emission
line galaxies at z > 6 and their physical properties. Monthly Notices of the
Royal Astronomical Society. 541(2), 1348–1376.'
mla: 'Pirie, C. A., et al. “The JWST Emission Line Survey (JELS): An Untargeted
Search for H α Emission Line Galaxies at z > 6 and Their Physical Properties.”
Monthly Notices of the Royal Astronomical Society, vol. 541, no. 2, Oxford
University Press, 2025, pp. 1348–76, doi:10.1093/mnras/staf1006.'
short: C.A. Pirie, P.N. Best, K.J. Duncan, D.J. Mcleod, R.K. Cochrane, M. Clausen,
J.S. Dunlop, S.R. Flury, J.E. Geach, C.L. Hale, E. Ibar, R. Kondapally, Z. Li,
J.J. Matthee, R.J. Mclure, L. Ossa-Fuentes, A.L. Patrick, I. Smail, D. Sobral,
H.M.O. Stephenson, J.P. Stott, A.M. Swinbank, Monthly Notices of the Royal Astronomical
Society 541 (2025) 1348–1376.
date_created: 2025-07-20T22:02:00Z
date_published: 2025-08-01T00:00:00Z
date_updated: 2025-09-30T14:03:40Z
day: '01'
ddc:
- '520'
department:
- _id: JoMa
doi: 10.1093/mnras/staf1006
external_id:
arxiv:
- '2410.11808'
isi:
- '001527095600001'
file:
- access_level: open_access
checksum: f8708c78016f8917765026502c6b50b6
content_type: application/pdf
creator: dernst
date_created: 2025-07-22T07:19:20Z
date_updated: 2025-07-22T07:19:20Z
file_id: '20064'
file_name: 2025_MonthlyNoticesRAS_Pirie.pdf
file_size: 38102038
relation: main_file
success: 1
file_date_updated: 2025-07-22T07:19:20Z
has_accepted_license: '1'
intvolume: ' 541'
isi: 1
issue: '2'
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
page: 1348-1376
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): An untargeted search for H α emission
line galaxies at z > 6 and their physical properties'
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: 541
year: '2025'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
PlanS_conform: '1'
_id: '20028'
abstract:
- lang: eng
text: We present the JWST Emission-Line Survey (JELS), a JWST imaging programme
exploiting the wavelength coverage and sensitivity of the Near-Infrared Camera
(NIRCam) to extend narrow-band rest-optical emission-line selection into the Epoch
of Reionization (EoR) for the first time, and to enable unique studies of the
resolved ionized gas morphology in individual galaxies across cosmic history.
The primary JELS observations comprise ∼ 4.7 μm narrow-band imaging over ∼ 63
arcmin2 designed to enable selection of H α emitters at z ∼ 6.1 and a host of
novel emission-line samples, including [O III] (z ∼ 8.3) and Paschen α/β (z ∼
1.5/2.8). For the F466N/F470N narrow-band observations, the emission-line sensitivities
achieved are up to ∼ 2× more sensitive than current slitless spectroscopy surveys
(5σ limits of 0.8–1.2×10−18 erg s−1cm−2), corresponding to unobscured H α star
formation rates (SFRs) of 0.9–1.3 M yr−1 at z ∼ 6.1, extending emission-line selections
in the EoR to fainter populations. Simultaneously, JELS also adds F200W broad-band
and F212N narrow-band imaging (H α at z ∼ 2.23) that probes SFRs 5× fainter than
previous ground-based narrow-band studies (∼ 0.2 M yr−1), offering an unprecedented
resolved view of star formation at cosmic noon. We present the detailed JELS design,
key data processing steps specific to the survey observations, and demonstrate
the exceptional data quality and imaging sensitivity achieved. We then summarize
the key scientific goals of JELS, demonstrate the precision and accuracy of the
expected redshift and measured emission-line recovery through detailed simulations,
and present examples of spectroscopically confirmed H α and [O III] emitters discovered
by JELS that illustrate the novel parameter space probed.
acknowledgement: "We thank the anonymous referee for their helpful and constructive
feedback that hassignificantly improved this manuscript. The authors also thank
DavidCoulter and ArminRestfor allowing the inclusion of JELS targets in their director’s
discretionary observing programme. KJD acknowledges support from the Science and
Technology Facilities Council (STFC) through an Ernest Rutherford Fellowship (grant
number ST/W003120/1). DJM, PNB, RK, and RJM acknowledge the support of the UK STFC
via grant ST/V000594/1. PNB and RK are grateful for support from the UK STFC via
grant ST/Y000951/1. RKC was funded by support for programme #02321, provided by
NASA through a grant from the Space Telescope Science Institute,\r\nwhich is operated
by the Association of Universities for Research in Astronomy, Inc., under NASA contract
NAS5-03127. RKC is grateful for support from the Leverhulme Trust via the Leverhulme
Early Career Fellowship.JSD acknowledgesthe support of the Royal Society via a Royal
Society Research Professorship. CLH acknowledges support from the Leverhulme Trust
through an Early Career Research Fellowship and also acknowledge support from the
Oxford\r\nHintze Centre for Astrophysical Surveys which is funded through generous
support from the Hintze Family Charitable Foundation. EI gratefully acknowledge
financial support from ANID –MILENIO – NCN2024 112 and ANID FONDECYT Regular 1221846.
AMS and IRS acknowledge support from the STFC via grant ST/X001075/1.This work was
initiated in part at Aspen Center for Physics, which is supported by National Science
Foundation grant PHY-2210452."
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- 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: C. A.
full_name: Pirie, C. A.
last_name: Pirie
- 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: N. A.
full_name: Grogin, N. A.
last_name: Grogin
- first_name: C. L.
full_name: Hale, C. L.
last_name: Hale
- first_name: E.
full_name: Ibar, E.
last_name: Ibar
- first_name: R.
full_name: Kondapally, R.
last_name: Kondapally
- 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: Luis
full_name: Ossa-Fuentes, Luis
last_name: Ossa-Fuentes
- first_name: A. L.
full_name: Patrick, A. L.
last_name: Patrick
- first_name: Ian
full_name: Smail, Ian
last_name: Smail
- first_name: D.
full_name: Sobral, D.
last_name: Sobral
- 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: A. M.
full_name: Swinbank, A. M.
last_name: Swinbank
citation:
ama: 'Duncan KJ, Mcleod DJ, Best PN, et al. The JWST Emission-Line Survey: Extending
rest-optical narrow-band emission-line selection into the Epoch of Reionization.
Monthly Notices of the Royal Astronomical Society. 2025;541(2):1329-1347.
doi:10.1093/mnras/staf1061'
apa: 'Duncan, K. J., Mcleod, D. J., Best, P. N., Pirie, C. A., Clausen, M., Cochrane,
R. K., … Swinbank, A. M. (2025). The JWST Emission-Line Survey: Extending rest-optical
narrow-band emission-line selection into the Epoch of Reionization. Monthly
Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/staf1061'
chicago: 'Duncan, K. J., D. J. Mcleod, P. N. Best, C. A. Pirie, M. Clausen, R. K.
Cochrane, J. S. Dunlop, et al. “The JWST Emission-Line Survey: Extending Rest-Optical
Narrow-Band Emission-Line Selection into the Epoch of Reionization.” Monthly
Notices of the Royal Astronomical Society. Oxford University Press, 2025.
https://doi.org/10.1093/mnras/staf1061.'
ieee: 'K. J. Duncan et al., “The JWST Emission-Line Survey: Extending rest-optical
narrow-band emission-line selection into the Epoch of Reionization,” Monthly
Notices of the Royal Astronomical Society, vol. 541, no. 2. Oxford University
Press, pp. 1329–1347, 2025.'
ista: 'Duncan KJ, Mcleod DJ, Best PN, Pirie CA, Clausen M, Cochrane RK, Dunlop JS,
Flury SR, Geach JE, Grogin NA, Hale CL, Ibar E, Kondapally R, Li Z, Matthee JJ,
Mclure RJ, Ossa-Fuentes L, Patrick AL, Smail I, Sobral D, Stephenson HMO, Stott
JP, Swinbank AM. 2025. The JWST Emission-Line Survey: Extending rest-optical narrow-band
emission-line selection into the Epoch of Reionization. Monthly Notices of the
Royal Astronomical Society. 541(2), 1329–1347.'
mla: 'Duncan, K. J., et al. “The JWST Emission-Line Survey: Extending Rest-Optical
Narrow-Band Emission-Line Selection into the Epoch of Reionization.” Monthly
Notices of the Royal Astronomical Society, vol. 541, no. 2, Oxford University
Press, 2025, pp. 1329–47, doi:10.1093/mnras/staf1061.'
short: K.J. Duncan, D.J. Mcleod, P.N. Best, C.A. Pirie, M. Clausen, R.K. Cochrane,
J.S. Dunlop, S.R. Flury, J.E. Geach, N.A. Grogin, C.L. Hale, E. Ibar, R. Kondapally,
Z. Li, J.J. Matthee, R.J. Mclure, L. Ossa-Fuentes, A.L. Patrick, I. Smail, D.
Sobral, H.M.O. Stephenson, J.P. Stott, A.M. Swinbank, Monthly Notices of the Royal
Astronomical Society 541 (2025) 1329–1347.
date_created: 2025-07-20T22:02:00Z
date_published: 2025-08-01T00:00:00Z
date_updated: 2025-09-30T14:03:01Z
day: '01'
ddc:
- '520'
department:
- _id: JoMa
doi: 10.1093/mnras/staf1061
external_id:
arxiv:
- '2410.09000'
isi:
- '001527085900001'
file:
- access_level: open_access
checksum: abedbbce98d448f374dc922dad9133fc
content_type: application/pdf
creator: dernst
date_created: 2025-07-22T07:02:02Z
date_updated: 2025-07-22T07:02:02Z
file_id: '20063'
file_name: 2025_MonthlyNoticesRAS_Duncan.pdf
file_size: 4451937
relation: main_file
success: 1
file_date_updated: 2025-07-22T07:02:02Z
has_accepted_license: '1'
intvolume: ' 541'
isi: 1
issue: '2'
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
page: 1329-1347
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: Extending rest-optical narrow-band emission-line
selection into 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: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 541
year: '2025'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
PlanS_conform: '1'
_id: '20250'
abstract:
- lang: eng
text: "Population III stars are possible precursors to early supermassive black
holes (BHs). The presence of soft UV Lyman–Werner (LW) background radiation can
suppress Population III star formation in minihaloes and allow them to form in
pristine atomic-cooling haloes. In the absence of molecular hydrogen (H2) cooling,
atomic-cooling haloes enable rapid collapse with suppressed fragmentation. High
background LW fluxes from preceding star-formation have been proposed to dissociate
H2. This flux can be supplemented by LW radiation from one or more Population
III star(s) in the same halo, reducing the necessary background level. Here, we
consider atomic-cooling haloes in which multiple protostellar cores form close
to one another nearly simultaneously. We assess whether the first star’s LW radiation
can dissociate nearby \r\n, enabling rapid accretion on to a nearby protostellar
core, and the prompt formation of a second, supermassive star (SMS) from warm,
atomically-cooled gas. We use a set of hydrodynamical simulations with the code
enzo, with identical LW backgrounds centred on a halo with two adjacent collapsing
gas clumps. When an additional large local LW flux is introduced, we observe immediate
reductions in both the accretion rates and the stellar masses that form within
these clumps. While the LW flux reduces the H2 fraction and increases the gas
temperature, the halo core’s potential well is too shallow to promptly heat the
gas to >1000 K and increase the second protostar’s accretion rate. We conclude
that this internal LW feedback scenario is unlikely to facilitate SMS or massive
BH seed formation."
acknowledgement: We thank the anonymous referee for comments that helped us improve
the clarity of this manuscript. We acknowledge support from the United States National
Science Foundation (NSF) grant AST-2006176 and the National Aeronautics and Space
Administration (NASA) grants 80NSSC24K0440 and 80NSSC22K0822 (ZH). We also acknowledge
support from NSF grant AST-2009309, NASA Astrophysics Theory Program grant 80NSSC22K0629,
and Space Telescope Science Institute grant JWST-AR-05238 (EV). The simulations
in this work were run on Texas Advanced Computing Center’s Stampede2 and Stampede3
systems. We used Stampede2 and Purdue University’s computing system Anvil for data
analysis.
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: James
full_name: Sullivan, James
last_name: Sullivan
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
orcid: 0000-0003-3633-5403
- first_name: Mihir
full_name: Kulkarni, Mihir
last_name: Kulkarni
- first_name: Eli
full_name: Visbal, Eli
last_name: Visbal
citation:
ama: Sullivan J, Haiman Z, Kulkarni M, Visbal E. Can supermassive stars form in
protogalaxies due to internal Lyman-Werner feedback? Monthly Notices of the
Royal Astronomical Society. 2025;542(2):822-838. doi:10.1093/mnras/staf1269
apa: Sullivan, J., Haiman, Z., Kulkarni, M., & Visbal, E. (2025). Can supermassive
stars form in protogalaxies due to internal Lyman-Werner feedback? Monthly
Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/staf1269
chicago: Sullivan, James, Zoltán Haiman, Mihir Kulkarni, and Eli Visbal. “Can Supermassive
Stars Form in Protogalaxies Due to Internal Lyman-Werner Feedback?” Monthly
Notices of the Royal Astronomical Society. Oxford University Press, 2025.
https://doi.org/10.1093/mnras/staf1269.
ieee: J. Sullivan, Z. Haiman, M. Kulkarni, and E. Visbal, “Can supermassive stars
form in protogalaxies due to internal Lyman-Werner feedback?,” Monthly Notices
of the Royal Astronomical Society, vol. 542, no. 2. Oxford University Press,
pp. 822–838, 2025.
ista: Sullivan J, Haiman Z, Kulkarni M, Visbal E. 2025. Can supermassive stars form
in protogalaxies due to internal Lyman-Werner feedback? Monthly Notices of the
Royal Astronomical Society. 542(2), 822–838.
mla: Sullivan, James, et al. “Can Supermassive Stars Form in Protogalaxies Due to
Internal Lyman-Werner Feedback?” Monthly Notices of the Royal Astronomical
Society, vol. 542, no. 2, Oxford University Press, 2025, pp. 822–38, doi:10.1093/mnras/staf1269.
short: J. Sullivan, Z. Haiman, M. Kulkarni, E. Visbal, Monthly Notices of the Royal
Astronomical Society 542 (2025) 822–838.
date_created: 2025-08-31T22:01:31Z
date_published: 2025-09-01T00:00:00Z
date_updated: 2025-09-30T14:28:05Z
day: '01'
ddc:
- '520'
department:
- _id: ZoHa
doi: 10.1093/mnras/staf1269
external_id:
arxiv:
- '2501.12986'
isi:
- '001553472000001'
file:
- access_level: open_access
checksum: 2a06796b27da0b33d479dba170ba4b3f
content_type: application/pdf
creator: dernst
date_created: 2025-09-03T05:44:47Z
date_updated: 2025-09-03T05:44:47Z
file_id: '20279'
file_name: 2025_MonthlyNoticesRAS_Sullivan.pdf
file_size: 2780496
relation: main_file
success: 1
file_date_updated: 2025-09-03T05:44:47Z
has_accepted_license: '1'
intvolume: ' 542'
isi: 1
issue: '2'
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
page: 822-838
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: Can supermassive stars form in protogalaxies due to internal Lyman-Werner feedback?
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: 542
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
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'
...
---
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
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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
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file_date_updated: 2025-11-24T10:35:15Z
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intvolume: ' 544'
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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
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'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
PlanS_conform: '1'
_id: '18984'
abstract:
- lang: eng
text: Although planets have been found orbiting binary systems, whether they can
survive binary interactions is debated. While the tightest-orbit binaries should
host the most dynamically stable and long-lived circumbinary planetary systems,
they are also the systems that are expected to experience mass transfer, common
envelope evolution, or stellar mergers. In this study, we explore the effect of
stable non-conservative mass transfer on the dynamical evolution of circumbinary
planets. We present a new script that seamlessly integrates binary evolution data
from the 1D binary stellar evolution code MESA into the N-body simulation code
REBOUND. This integration framework enables a comprehensive examination of the
dynamical evolution of circumbinary planets orbiting mass-transferring binaries,
while simultaneously accounting for the detailed stellar structure evolution.
In addition, we introduce a recalibration method to mitigate numerical errors
from updates of binary properties during the system's dynamical evolution. We
construct a reference binary model in which a 2.21M⊙ star loses its hydrogen-rich
envelope through non-conservative mass transfer to the 1.76M⊙ companion star,
creating a 0.38M⊙ subdwarf. We find the tightest stable orbital separation for
circumbinary planets to be ≃2.5 times the binary separation after mass transfer.
Accounting for tides by using the interior stellar structure, we find that tidal
effects become apparent after the rapid mass transfer phase and start to fade
away during the latter stage of the slow mass transfer phase. Our research provides
a new framework for exploring circumbinary planet dynamics in interacting binary
systems.
acknowledgement: We thank the participants of the 2023 Kavli Summer Program in Astrophysics,
hosted by the Max Planck Institute for Astrophysics and funded by the Kavli Foundation.
In particular, Holly Preece, Selma de Mink, and Stephen Justham for their feedback
and comments on our work. ZX acknowledges support from the China Scholarship Council
(CSC). ST acknowledges the funding from the European Union’s Horizon 2020 research
and innovation programme under the Marie Skłodowska-Curie grant agreement No. 101034413.
AAT acknowledges support from the Horizon Europe research and innovation programmes
under the Marie Skłodowska-Curie grant agreement no. 101103134.
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: Zepei
full_name: Xing, Zepei
last_name: Xing
- first_name: Santiago
full_name: Torres Rodriguez, Santiago
id: a8df4360-4328-11ee-8f1a-e502d0c83fc2
last_name: Torres Rodriguez
orcid: 0000-0002-3150-8988
- first_name: Ylva Louise Linsdotter
full_name: Götberg, Ylva Louise Linsdotter
id: d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d
last_name: Götberg
orcid: 0000-0002-6960-6911
- first_name: Alessandro A.
full_name: Trani, Alessandro A.
last_name: Trani
- first_name: Valeriya
full_name: Korol, Valeriya
last_name: Korol
- first_name: Jorge
full_name: Cuadra, Jorge
last_name: Cuadra
citation:
ama: 'Xing Z, Torres Rodriguez S, Götberg YLL, Trani AA, Korol V, Cuadra J. Combining
REBOUND and MESA: Dynamical evolution of planets orbiting interacting binaries.
Monthly Notices of the Royal Astronomical Society. 2025;537(1):285-292.
doi:10.1093/mnras/stae2820'
apa: 'Xing, Z., Torres Rodriguez, S., Götberg, Y. L. L., Trani, A. A., Korol, V.,
& Cuadra, J. (2025). Combining REBOUND and MESA: Dynamical evolution of planets
orbiting interacting binaries. Monthly Notices of the Royal Astronomical Society.
Oxford University Press. https://doi.org/10.1093/mnras/stae2820'
chicago: 'Xing, Zepei, Santiago Torres Rodriguez, Ylva Louise Linsdotter Götberg,
Alessandro A. Trani, Valeriya Korol, and Jorge Cuadra. “Combining REBOUND and
MESA: Dynamical Evolution of Planets Orbiting Interacting Binaries.” Monthly
Notices of the Royal Astronomical Society. Oxford University Press, 2025.
https://doi.org/10.1093/mnras/stae2820.'
ieee: 'Z. Xing, S. Torres Rodriguez, Y. L. L. Götberg, A. A. Trani, V. Korol, and
J. Cuadra, “Combining REBOUND and MESA: Dynamical evolution of planets orbiting
interacting binaries,” Monthly Notices of the Royal Astronomical Society,
vol. 537, no. 1. Oxford University Press, pp. 285–292, 2025.'
ista: 'Xing Z, Torres Rodriguez S, Götberg YLL, Trani AA, Korol V, Cuadra J. 2025.
Combining REBOUND and MESA: Dynamical evolution of planets orbiting interacting
binaries. Monthly Notices of the Royal Astronomical Society. 537(1), 285–292.'
mla: 'Xing, Zepei, et al. “Combining REBOUND and MESA: Dynamical Evolution of Planets
Orbiting Interacting Binaries.” Monthly Notices of the Royal Astronomical Society,
vol. 537, no. 1, Oxford University Press, 2025, pp. 285–92, doi:10.1093/mnras/stae2820.'
short: Z. Xing, S. Torres Rodriguez, Y.L.L. Götberg, A.A. Trani, V. Korol, J. Cuadra,
Monthly Notices of the Royal Astronomical Society 537 (2025) 285–292.
date_created: 2025-02-02T23:01:53Z
date_published: 2025-02-01T00:00:00Z
date_updated: 2025-12-30T07:25:37Z
day: '01'
ddc:
- '520'
department:
- _id: YlGo
- _id: LiBu
doi: 10.1093/mnras/stae2820
ec_funded: 1
external_id:
arxiv:
- '2410.19695'
isi:
- '001400731500001'
file:
- access_level: open_access
checksum: 49fb4fe69f487d36169ccea60acbeccc
content_type: application/pdf
creator: dernst
date_created: 2025-12-30T07:24:34Z
date_updated: 2025-12-30T07:24:34Z
file_id: '20881'
file_name: 2025_MonthlyNoticesRAS_Xing.pdf
file_size: 2974244
relation: main_file
success: 1
file_date_updated: 2025-12-30T07:24:34Z
has_accepted_license: '1'
intvolume: ' 537'
isi: 1
issue: '1'
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
page: 285-292
project:
- _id: fc2ed2f7-9c52-11eb-aca3-c01059dda49c
call_identifier: H2020
grant_number: '101034413'
name: 'IST-BRIDGE: International postdoctoral program'
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: 'Combining REBOUND and MESA: Dynamical evolution of planets orbiting interacting
binaries'
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: 537
year: '2025'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
_id: '19066'
abstract:
- lang: eng
text: "We present a sample of 1956 individual stellar clumps at redshift 0.7 < z
< 10, detected with JWST/NIRCam in 476 galaxies lensed by the galaxy cluster Abell2744.
The lensed clumps present magnifications ranging between μ = 1.8 and μ = 300.
We perform simultaneous size-photometry estimates in 20 JWST/NIRCam median and
broad-band filters from 0.7 to 5 μm.\r\nSpectral energy distribution (SED) fitting
analyses enable us to recover the physical properties of the clumps. The majority
of the clumps are spatially resolved and have effective radii in the range Reff
= 10–700 pc. We restrict this first study to the 1751 post-reionization era clumps
with redshift < 5.5. We find a significant evolution of the average clump ages,
star formation rates (SFRs), SFR surface densities, and metallicity with increasing
redshift, while median stellar mass and stellar mass surface densities are similar
in the probed redshift range. We observe a strong correlation between the clump
properties and the properties of their host galaxies, with more massive galaxies
hosting more massive and older clumps. We find that clumps closer to their host
galactic centre are on average more massive, while their ages do not show clear
sign of migration. We find that clumps at cosmic noon sample the upper-mass end
of the mass function to higher masses than at z > 3, reflecting the rapid increase
towards the peak of the cosmic star formation history. We conclude that the results
achieved over the studied redshift range are in agreement with expectation of
in situ clump formation scenario from large-scale disc fragmentation. "
acknowledgement: 'The authors thank the International Space Science Institute for
sponsoring the ISSI team: ‘Star Formation within rapidly evolving galaxies’ where
many ideas discussed in this article have been brainstormed. AA and AC acknowledge
support by the Swedish research council Vetenskapsrådet (2021-05559). MM acknowledges
the financial support through grant PRIN-MIUR 2020SKSTHZ. JM and IK acknowledge
support 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. RPN acknowledges funding
from JWST programme GO-3516. 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.'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Adélaïde
full_name: Claeyssens, Adélaïde
last_name: Claeyssens
- first_name: Angela
full_name: Adamo, Angela
last_name: Adamo
- first_name: Matteo
full_name: Messa, Matteo
last_name: Messa
- first_name: Miroslava
full_name: Dessauges-Zavadsky, Miroslava
last_name: Dessauges-Zavadsky
- first_name: Johan
full_name: Richard, Johan
last_name: Richard
- first_name: Ivan
full_name: Kramarenko, Ivan
id: 9a9394cb-3200-11ee-973b-f5ba2a8b16e4
last_name: Kramarenko
orcid: 0000-0001-5346-6048
- 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
citation:
ama: Claeyssens A, Adamo A, Messa M, et al. Tracing star formation across cosmic
time at tens of parsec-scales in the lensing cluster field Abell 2744. Monthly
Notices of the Royal Astronomical Society. 2025;537(3):2535-2558. doi:10.1093/mnras/staf058
apa: Claeyssens, A., Adamo, A., Messa, M., Dessauges-Zavadsky, M., Richard, J.,
Kramarenko, I., … Naidu, R. P. (2025). Tracing star formation across cosmic time
at tens of parsec-scales in the lensing cluster field Abell 2744. Monthly Notices
of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/staf058
chicago: Claeyssens, Adélaïde, Angela Adamo, Matteo Messa, Miroslava Dessauges-Zavadsky,
Johan Richard, Ivan Kramarenko, Jorryt J Matthee, and Rohan P. Naidu. “Tracing
Star Formation across Cosmic Time at Tens of Parsec-Scales in the Lensing Cluster
Field Abell 2744.” Monthly Notices of the Royal Astronomical Society. Oxford
University Press, 2025. https://doi.org/10.1093/mnras/staf058.
ieee: A. Claeyssens et al., “Tracing star formation across cosmic time at
tens of parsec-scales in the lensing cluster field Abell 2744,” Monthly Notices
of the Royal Astronomical Society, vol. 537, no. 3. Oxford University Press,
pp. 2535–2558, 2025.
ista: Claeyssens A, Adamo A, Messa M, Dessauges-Zavadsky M, Richard J, Kramarenko
I, Matthee JJ, Naidu RP. 2025. Tracing star formation across cosmic time at tens
of parsec-scales in the lensing cluster field Abell 2744. Monthly Notices of the
Royal Astronomical Society. 537(3), 2535–2558.
mla: Claeyssens, Adélaïde, et al. “Tracing Star Formation across Cosmic Time at
Tens of Parsec-Scales in the Lensing Cluster Field Abell 2744.” Monthly Notices
of the Royal Astronomical Society, vol. 537, no. 3, Oxford University Press,
2025, pp. 2535–58, doi:10.1093/mnras/staf058.
short: A. Claeyssens, A. Adamo, M. Messa, M. Dessauges-Zavadsky, J. Richard, I.
Kramarenko, J.J. Matthee, R.P. Naidu, Monthly Notices of the Royal Astronomical
Society 537 (2025) 2535–2558.
date_created: 2025-02-23T23:01:55Z
date_published: 2025-03-01T00:00:00Z
date_updated: 2026-02-16T11:51:48Z
day: '01'
ddc:
- '520'
department:
- _id: JoMa
- _id: GradSch
doi: 10.1093/mnras/staf058
external_id:
arxiv:
- '2410.10974'
isi:
- '001420026000001'
file:
- access_level: open_access
checksum: 431aef05755e6b5472f5e9b4c326cf84
content_type: application/pdf
creator: dernst
date_created: 2025-02-25T06:38:43Z
date_updated: 2025-02-25T06:38:43Z
file_id: '19084'
file_name: 2025_MonthlyNoticesRAS_Claeyssens.pdf
file_size: 35099276
relation: main_file
success: 1
file_date_updated: 2025-02-25T06:38:43Z
has_accepted_license: '1'
intvolume: ' 537'
isi: 1
issue: '3'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
page: 2535-2558
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'
scopus_import: '1'
status: public
title: Tracing star formation across cosmic time at tens of parsec-scales in the lensing
cluster field Abell 2744
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: 537
year: '2025'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
PlanS_conform: '1'
_id: '21063'
abstract:
- lang: eng
text: "We report the detection of a 13σ Hα emission line from HDF850.1 at z = 5.188
± 0.001 using the FRESCO (First Reionization Era SpectroscopicallyComplete Observations)
NIRCam F444W grism observations. Detection of Hα in HDF850.1 is noteworthy, given
its high far-infrared (IR) luminosity, substantial dust obscuration, and the historical
challenges in deriving its redshift.\r\nHDF850.1 shows a clear detection in the
F444W imaging data, distributed between a northern and southern component, mirroring
that seen in [C II] from the Plateau de Bure Interferometer. Modelling the spectral
energy distribution of each component separately, we find that the northern component
has a higher mass, star formation rate (SFR), and dust extinction than the southern
component. The observed Hα emission appears to arise entirely from the less-obscured
southern component and shows a similar \x04v∼ + 130 km s −1 velocity offset to
that seen for [C II] relative to the source systemic redshift. Leveraging Hα-derived
redshiftsfrom FRESCO observations, we find that HDF850.1 isforming in one of the
richest environments identified to date at z > 5, with 100 z = 5.17–5.20 galaxies
distributed across 13 smaller structures and a ∼(15 cMpc)3 volume. Based on the
evolution of analogous structures in cosmological simulations, the z = 5.17–5.20
structures seem likely to collapse into\r\na single > 1014M cluster by z ∼ 0.
Comparing galaxy properties forming within this overdensity with those outside,
we find the masses, SFRs, and UV luminosities inside the overdensity to be clearly
higher. The prominence of Hα line emission from HDF850.1 and other known highly
obscured z > 5 galaxies illustrates the potential of NIRCam-grism programs to
map both\r\nthe early build-up of IR-luminous galaxies and overdense structures."
acknowledgement: "We are grateful to Roberto Neri and collaborators for providing
us with spatially resolved information on both the dust-continuum and [C ii] line
emission from their high spatial resolution PdBI observations. This project was
made possible in part by the Leiden University Fund/Bouwens Astrophysics Fund. RJB
acknowledges support from NWO grants 600.065.140.11N211 (vrij competitie) and TOP
grant TOP1.16.057. The Cosmic Dawn Center (DAWN) is funded by the Danish National
Research Foundation under grant no. 140. Cloud-based data processing and file storage
for this work is provided by the AWS Cloud Credits for Research program. Support
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. RPN 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. MS acknowledges
support from the CIDEGENT/2021/059 grant, from project PID2019-109592GB-I00/AEI/10.13039/501100011033
from the Spanish Ministerio de Ciencia e Innovación – Agencia Estatal de Investigación.
This study forms part of the Astrophysics and High Energy Physics programme and
was supported by MCIN with funding from European Union NextGenerationEU (PRTR-C17.I1)
and by Generalitat Valenciana under the project n. ASFAE/2022/025. RAM acknowledges
support from the ERC Advanced Grant 740246 (Cosmic_Gas) and the Swiss National Science
Foundation through project grant 200020_207349.\r\n\r\nThis 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. These observations are associated with program no. 1895.\r\n\r\nThis
paper made use of several publicly available software packages. We are indebted
to the respective authors for their work: ipython (Pérez & Granger 2007), matplotlib
(Hunter 2007), numpy (Oliphant 2006), scipy (Virtanen et al. 2020), jupyter (Kluyver
et al. 2016), astropy (Astropy Collaboration 2013, 2018), grizli (v1.7.11; Brammer
2018; Brammer et al. 2022), eazy (Brammer, van Dokkum & Coppi 2008), and SExtractor
(Bertin & Arnouts 1996)."
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: Thomas
full_name: Herard-Demanche, Thomas
last_name: Herard-Demanche
- first_name: Rychard J
full_name: Bouwens, Rychard J
last_name: Bouwens
- first_name: Pascal A
full_name: Oesch, Pascal A
last_name: Oesch
- first_name: Rohan P
full_name: Naidu, Rohan P
last_name: Naidu
- first_name: Roberto
full_name: Decarli, Roberto
last_name: Decarli
- first_name: Erica J
full_name: Nelson, Erica J
last_name: Nelson
- first_name: Gabriel
full_name: Brammer, Gabriel
last_name: Brammer
- first_name: Andrea
full_name: Weibel, Andrea
last_name: Weibel
- first_name: Mengyuan
full_name: Xiao, Mengyuan
last_name: Xiao
- first_name: Mauro
full_name: Stefanon, Mauro
last_name: Stefanon
- first_name: Fabian
full_name: Walter, Fabian
last_name: Walter
- 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: Romain A
full_name: Meyer, Romain A
last_name: Meyer
- first_name: Stijn
full_name: Wuyts, Stijn
last_name: Wuyts
- first_name: Naveen
full_name: Reddy, Naveen
last_name: Reddy
- first_name: Lucie
full_name: Rowland, Lucie
last_name: Rowland
- first_name: Ivana
full_name: van Leeuwen, Ivana
last_name: van Leeuwen
- first_name: Pablo Arrabal
full_name: Haro, Pablo Arrabal
last_name: Haro
- first_name: Helmut
full_name: Dannerbauer, Helmut
last_name: Dannerbauer
- first_name: Alice E
full_name: Shapley, Alice E
last_name: Shapley
- first_name: John
full_name: Chisholm, John
last_name: Chisholm
- first_name: Pieter
full_name: van Dokkum, Pieter
last_name: van Dokkum
- first_name: Ivo
full_name: Labbe, Ivo
last_name: Labbe
- first_name: Garth
full_name: Illingworth, Garth
last_name: Illingworth
- first_name: Daniel
full_name: Schaerer, Daniel
last_name: Schaerer
- first_name: Irene
full_name: Shivaei, Irene
last_name: Shivaei
citation:
ama: 'Herard-Demanche T, Bouwens RJ, Oesch PA, et al. Mapping dusty galaxy growth
at z > 5 with FRESCO: Detection of Hα in submm galaxy HDF850.1 and the surrounding
overdense structures. Monthly Notices of the Royal Astronomical Society.
2025;537(2):788-808. doi:10.1093/mnras/staf030'
apa: 'Herard-Demanche, T., Bouwens, R. J., Oesch, P. A., Naidu, R. P., Decarli,
R., Nelson, E. J., … Shivaei, I. (2025). Mapping dusty galaxy growth at z >
5 with FRESCO: Detection of Hα in submm galaxy HDF850.1 and the surrounding overdense
structures. Monthly Notices of the Royal Astronomical Society. Oxford University
Press. https://doi.org/10.1093/mnras/staf030'
chicago: 'Herard-Demanche, Thomas, Rychard J Bouwens, Pascal A Oesch, Rohan P Naidu,
Roberto Decarli, Erica J Nelson, Gabriel Brammer, et al. “Mapping Dusty Galaxy
Growth at z > 5 with FRESCO: Detection of Hα in Submm Galaxy HDF850.1 and
the Surrounding Overdense Structures.” Monthly Notices of the Royal Astronomical
Society. Oxford University Press, 2025. https://doi.org/10.1093/mnras/staf030.'
ieee: 'T. Herard-Demanche et al., “Mapping dusty galaxy growth at z >
5 with FRESCO: Detection of Hα in submm galaxy HDF850.1 and the surrounding overdense
structures,” Monthly Notices of the Royal Astronomical Society, vol. 537,
no. 2. Oxford University Press, pp. 788–808, 2025.'
ista: 'Herard-Demanche T, Bouwens RJ, Oesch PA, Naidu RP, Decarli R, Nelson EJ,
Brammer G, Weibel A, Xiao M, Stefanon M, Walter F, Matthee JJ, Meyer RA, Wuyts
S, Reddy N, Rowland L, van Leeuwen I, Haro PA, Dannerbauer H, Shapley AE, Chisholm
J, van Dokkum P, Labbe I, Illingworth G, Schaerer D, Shivaei I. 2025. Mapping
dusty galaxy growth at z > 5 with FRESCO: Detection of Hα in submm galaxy
HDF850.1 and the surrounding overdense structures. Monthly Notices of the Royal
Astronomical Society. 537(2), 788–808.'
mla: 'Herard-Demanche, Thomas, et al. “Mapping Dusty Galaxy Growth at z > 5
with FRESCO: Detection of Hα in Submm Galaxy HDF850.1 and the Surrounding Overdense
Structures.” Monthly Notices of the Royal Astronomical Society, vol. 537,
no. 2, Oxford University Press, 2025, pp. 788–808, doi:10.1093/mnras/staf030.'
short: T. Herard-Demanche, R.J. Bouwens, P.A. Oesch, R.P. Naidu, R. Decarli, E.J.
Nelson, G. Brammer, A. Weibel, M. Xiao, M. Stefanon, F. Walter, J.J. Matthee,
R.A. Meyer, S. Wuyts, N. Reddy, L. Rowland, I. van Leeuwen, P.A. Haro, H. Dannerbauer,
A.E. Shapley, J. Chisholm, P. van Dokkum, I. Labbe, G. Illingworth, D. Schaerer,
I. Shivaei, Monthly Notices of the Royal Astronomical Society 537 (2025) 788–808.
date_created: 2026-01-28T15:25:53Z
date_published: 2025-02-01T00:00:00Z
date_updated: 2026-02-09T08:50:55Z
day: '01'
ddc:
- '520'
department:
- _id: JoMa
doi: 10.1093/mnras/staf030
external_id:
arxiv:
- '2309.04525'
file:
- access_level: open_access
checksum: 4cbade43244eaa8b60bb05a90ae613da
content_type: application/pdf
creator: dernst
date_created: 2026-02-09T08:39:19Z
date_updated: 2026-02-09T08:39:19Z
file_id: '21169'
file_name: 2025_MonthlyNoticesRAS_HerardDemanche.pdf
file_size: 2787493
relation: main_file
success: 1
file_date_updated: 2026-02-09T08:39:19Z
has_accepted_license: '1'
intvolume: ' 537'
issue: '2'
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
page: 788-808
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'
status: public
title: 'Mapping dusty galaxy growth at z > 5 with FRESCO: Detection of Hα in submm
galaxy HDF850.1 and the surrounding overdense structures'
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: 537
year: '2025'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
PlanS_conform: '1'
_id: '21122'
abstract:
- lang: eng
text: The multimessenger combination of gravitational waves (GWs) from merging massive
black hole binaries (MBHBs) and the electromagnetic (EM) counterpart from the
surrounding circumbinary disc (CBD) will open avenues to new scientific pursuits.
In order to realize this science, we need to correctly localize the host galaxy
of the merging MBHB. Multiwavelength, time-dependent EM signatures can greatly
facilitate the identification of the unique EM counterpart among many sources
in LISA’s localization volume. To this end, we studied merging unequal-mass MBHBs
embedded in a CBD using high-resolution 2D simulations, with a $\Gamma$-law equation of
state, incorporating viscous heating, shock heating, and radiative cooling. We
simulate each binary starting from before it decouples from the CBD until just
after the merger. We compute EM signatures and identify distinct features before,
during, and after the merger. We corroborate previous findings of a several orders
of magnitude drop in the thermal X-ray luminosity near the time of merger, but
with delayed timing compared to an equal-mass system. The source remains X-ray
dark for hours post-merger. Our main results are a potential new signature of
a sharp spike in the thermal X-ray emission just before the tell-tale steep drop
occurs. This feature may further help to identify EM counterparts of LISA’s unequal
MBHBs before merger without the need for extensive pre-merger monitoring. Additionally,
we find a role-reversal in which the primary out-accretes the secondary during
late inspiral, which may diminish signatures originating from Doppler modulation.
acknowledgement: 'We acknowledge support from the Nationale Wetenschapsagenda Roadmap
grant ‘Gravitational Waves Laser Interferometer Space Antenna/Einstein Telescope:
Shivers from the Deep Universe: A National Infrastructure for Gravitational Wave
Research’ (LMK), National Science Foundation grant AST-2006176 (ZH), and National
Aeronautics and Space Administration Astrophysics Theory Program grant 80NSSC22K0822
(AM and ZH). JD was supported by National Aeronautics and Space Administration through
the National Aeronautics and Space Administration Hubble Fellowship grant HST-HF2-51552.001A,
awarded by the Space Telescope Science Institute, which is operated by the Association
of Universities for Research in Astronomy, Incorporated, under National Aeronautics
and Space Administration contract NAS5-26555. This research was supported in part
by the National Science Foundation under grant no. NSF PHY-1748958. This research
has made use of National Aeronautics and Space Administration’s Astrophysics Data
System. Resources supporting this work were provided by the National Aeronautics
and Space Administration High-End Computing (HEC) Program through the National Aeronautics
and Space Administration Advanced Supercomputing (NAS) Division at Ames Research
Center. Software: python (Oliphant 2007; Millman & Aivazis 2011), scipy (Jones
et al. 2001), numpy (van der Walt, Colbert & Varoquaux 2011), and matplotlib (Hunter
2007).'
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: Luke Major
full_name: Krauth, Luke Major
last_name: Krauth
- first_name: Jordy
full_name: Davelaar, Jordy
last_name: Davelaar
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
orcid: 0000-0003-3633-5403
- first_name: John Ryan
full_name: Westernacher-Schneider, John Ryan
last_name: Westernacher-Schneider
- first_name: Jonathan
full_name: Zrake, Jonathan
last_name: Zrake
- first_name: Andrew
full_name: MacFadyen, Andrew
last_name: MacFadyen
citation:
ama: Krauth LM, Davelaar J, Haiman Z, Westernacher-Schneider JR, Zrake J, MacFadyen
A. Thermal X-ray signatures in late-stage unequal-mass massive black hole binary
mergers. Monthly Notices of the Royal Astronomical Society. 2025;543(3):2670-2685.
doi:10.1093/mnras/staf1583
apa: Krauth, L. M., Davelaar, J., Haiman, Z., Westernacher-Schneider, J. R., Zrake,
J., & MacFadyen, A. (2025). Thermal X-ray signatures in late-stage unequal-mass
massive black hole binary mergers. Monthly Notices of the Royal Astronomical
Society. Oxford University Press. https://doi.org/10.1093/mnras/staf1583
chicago: Krauth, Luke Major, Jordy Davelaar, Zoltán Haiman, John Ryan Westernacher-Schneider,
Jonathan Zrake, and Andrew MacFadyen. “Thermal X-Ray Signatures in Late-Stage
Unequal-Mass Massive Black Hole Binary Mergers.” Monthly Notices of the Royal
Astronomical Society. Oxford University Press, 2025. https://doi.org/10.1093/mnras/staf1583.
ieee: L. M. Krauth, J. Davelaar, Z. Haiman, J. R. Westernacher-Schneider, J. Zrake,
and A. MacFadyen, “Thermal X-ray signatures in late-stage unequal-mass massive
black hole binary mergers,” Monthly Notices of the Royal Astronomical Society,
vol. 543, no. 3. Oxford University Press, pp. 2670–2685, 2025.
ista: Krauth LM, Davelaar J, Haiman Z, Westernacher-Schneider JR, Zrake J, MacFadyen
A. 2025. Thermal X-ray signatures in late-stage unequal-mass massive black hole
binary mergers. Monthly Notices of the Royal Astronomical Society. 543(3), 2670–2685.
mla: Krauth, Luke Major, et al. “Thermal X-Ray Signatures in Late-Stage Unequal-Mass
Massive Black Hole Binary Mergers.” Monthly Notices of the Royal Astronomical
Society, vol. 543, no. 3, Oxford University Press, 2025, pp. 2670–85, doi:10.1093/mnras/staf1583.
short: L.M. Krauth, J. Davelaar, Z. Haiman, J.R. Westernacher-Schneider, J. Zrake,
A. MacFadyen, Monthly Notices of the Royal Astronomical Society 543 (2025) 2670–2685.
date_created: 2026-01-31T09:28:28Z
date_published: 2025-11-01T00:00:00Z
date_updated: 2026-02-10T07:10:21Z
day: '01'
ddc:
- '520'
department:
- _id: ZoHa
doi: 10.1093/mnras/staf1583
external_id:
arxiv:
- '2503.01494'
file:
- access_level: open_access
checksum: f9b4c6a606df9493f6eb6af5ebcca6db
content_type: application/pdf
creator: dernst
date_created: 2026-02-10T07:07:17Z
date_updated: 2026-02-10T07:07:17Z
file_id: '21203'
file_name: 2025_MonthlyNoticesRAS_Krauth.pdf
file_size: 3689696
relation: main_file
success: 1
file_date_updated: 2026-02-10T07:07:17Z
has_accepted_license: '1'
intvolume: ' 543'
issue: '3'
language:
- iso: eng
month: '11'
oa: 1
oa_version: Published Version
page: 2670-2685
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'
status: public
title: Thermal X-ray signatures in late-stage unequal-mass massive black hole binary
mergers
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'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
PlanS_conform: '1'
_id: '21127'
abstract:
- lang: eng
text: "The early growth of black holes (BHs) in atomic-cooling haloes is likely
influenced by feedback on the surrounding gas. While the effects of radiative
feedback are well-documented, mechanical feedback, particularly from active galactic
nucleus (AGN) jets, has been comparatively less explored. Building on our previous
work that examined the growth of a 100 M BH in a constant density environment
regulated by AGN jets, we expand the initial BH mass range from 1 to 104 M and
adopt a more realistic density profile for atomic-cooling haloes. We reaffirm
the validity of our analytic models for jet cocoon propagation and feedback regulation.
We identify several critical radii – namely, the terminal radius of jet cocoon
propagation, the isotropization radius of the jet cocoon, and the core radius
of the atomic-cooling halo – that are crucial in determining BH growth given specific
gas properties and jet feedback parameters. In a significant portion of the parameter
space, our findings show that jet feedback substantially disrupts the halo’s core
during the initial feedback episode, preventing BH growth beyond 104 M.\r\nConversely,
conditions characterized by low jet velocities and high gas densities enable sustained
BH growth over extended periods. We provide a prediction for the BH mass growth
as a function of time and feedback parameters. We found that, to form a supermassive
BH (> 106 M) within 1 Gyr entirely by accreting gas from an atomic-cooling halo,
the jet energy feedback\r\nefficiency must be 10−4M˙ BHc2 even if the seed BH
mass is 104 M."
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: Kung-Yi
full_name: Su, Kung-Yi
last_name: Su
- first_name: Greg L
full_name: Bryan, Greg L
last_name: Bryan
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
orcid: 0000-0003-3633-5403
citation:
ama: 'Su K-Y, Bryan GL, Haiman Z. Self-regulation of high-redshift black hole accretion
via jets: Challenges for SMBH formation. Monthly Notices of the Royal Astronomical
Society. 2025;538(1):11-30. doi:10.1093/mnras/staf228'
apa: 'Su, K.-Y., Bryan, G. L., & Haiman, Z. (2025). Self-regulation of high-redshift
black hole accretion via jets: Challenges for SMBH formation. Monthly Notices
of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/staf228'
chicago: 'Su, Kung-Yi, Greg L Bryan, and Zoltán Haiman. “Self-Regulation of High-Redshift
Black Hole Accretion via Jets: Challenges for SMBH Formation.” Monthly Notices
of the Royal Astronomical Society. Oxford University Press, 2025. https://doi.org/10.1093/mnras/staf228.'
ieee: 'K.-Y. Su, G. L. Bryan, and Z. Haiman, “Self-regulation of high-redshift black
hole accretion via jets: Challenges for SMBH formation,” Monthly Notices of
the Royal Astronomical Society, vol. 538, no. 1. Oxford University Press,
pp. 11–30, 2025.'
ista: 'Su K-Y, Bryan GL, Haiman Z. 2025. Self-regulation of high-redshift black
hole accretion via jets: Challenges for SMBH formation. Monthly Notices of the
Royal Astronomical Society. 538(1), 11–30.'
mla: 'Su, Kung-Yi, et al. “Self-Regulation of High-Redshift Black Hole Accretion
via Jets: Challenges for SMBH Formation.” Monthly Notices of the Royal Astronomical
Society, vol. 538, no. 1, Oxford University Press, 2025, pp. 11–30, doi:10.1093/mnras/staf228.'
short: K.-Y. Su, G.L. Bryan, Z. Haiman, Monthly Notices of the Royal Astronomical
Society 538 (2025) 11–30.
date_created: 2026-01-31T09:29:59Z
date_published: 2025-03-01T00:00:00Z
date_updated: 2026-02-10T08:36:54Z
day: '01'
ddc:
- '520'
doi: 10.1093/mnras/staf228
extern: '1'
external_id:
arxiv:
- '2409.12250'
has_accepted_license: '1'
intvolume: ' 538'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/staf228
month: '03'
oa: 1
oa_version: Published Version
page: 11-30
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'
status: public
title: 'Self-regulation of high-redshift black hole accretion via jets: Challenges
for SMBH formation'
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: 538
year: '2025'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
PlanS_conform: '1'
_id: '21128'
abstract:
- lang: eng
text: The brightest steady sources of radiation in the universe, active galactic
nuclei (AGNs), are powered by gas accretion on to a central supermassive black
hole (SMBH). The large sizes and accretion rates implicated in AGN accretion discs
are expected to lead to gravitational instability and fragmentation, effectively
cutting off mass inflow to the SMBH. Radiative feedback from disc-embedded stars
has been invoked to yield marginally stable, steady-state solutions in the outer
discs. Here, we examine the consequences of this star formation with a semi-analytical
model in which stellar-mass black hole (sBH) remnants in the disc provide an additional
source of stabilizing radiative feedback. Assuming star formation seeds the embedded
sBH population, we model the time-evolving feedback from both stars and the growing
population of accreting sBHs. We find that in the outer disc, the luminosity of
the sBHs quickly dominates that of their parent stars. However, because sBHs consume
less gas than stars to stabilize the disc, the presence of the sBHs enhances the
mass flux to the inner disc. As a result, star formation persists over the lifetime
of the AGN, damped in the outer disc, but amplified in a narrow ring in the inner
disc. Heating from the embedded sBHs significantly modifies the disc’s temperature
profile and hardens its spectral energy distribution, and direct emission from
the sBHs adds a new hard X-ray component.
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: Marguerite
full_name: Epstein-Martin, Marguerite
last_name: Epstein-Martin
- first_name: Hiromichi
full_name: Tagawa, Hiromichi
last_name: Tagawa
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
orcid: 0000-0003-3633-5403
- first_name: Rosalba
full_name: Perna, Rosalba
last_name: Perna
citation:
ama: Epstein-Martin M, Tagawa H, Haiman Z, Perna R. Time-dependent models of AGN
discs with radiation from embedded stellar-mass black holes. Monthly Notices
of the Royal Astronomical Society. 2025;537(4):3396-3420. doi:10.1093/mnras/staf237
apa: Epstein-Martin, M., Tagawa, H., Haiman, Z., & Perna, R. (2025). Time-dependent
models of AGN discs with radiation from embedded stellar-mass black holes. Monthly
Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/staf237
chicago: Epstein-Martin, Marguerite, Hiromichi Tagawa, Zoltán Haiman, and Rosalba
Perna. “Time-Dependent Models of AGN Discs with Radiation from Embedded Stellar-Mass
Black Holes.” Monthly Notices of the Royal Astronomical Society. Oxford
University Press, 2025. https://doi.org/10.1093/mnras/staf237.
ieee: M. Epstein-Martin, H. Tagawa, Z. Haiman, and R. Perna, “Time-dependent models
of AGN discs with radiation from embedded stellar-mass black holes,” Monthly
Notices of the Royal Astronomical Society, vol. 537, no. 4. Oxford University
Press, pp. 3396–3420, 2025.
ista: Epstein-Martin M, Tagawa H, Haiman Z, Perna R. 2025. Time-dependent models
of AGN discs with radiation from embedded stellar-mass black holes. Monthly Notices
of the Royal Astronomical Society. 537(4), 3396–3420.
mla: Epstein-Martin, Marguerite, et al. “Time-Dependent Models of AGN Discs with
Radiation from Embedded Stellar-Mass Black Holes.” Monthly Notices of the Royal
Astronomical Society, vol. 537, no. 4, Oxford University Press, 2025, pp.
3396–420, doi:10.1093/mnras/staf237.
short: M. Epstein-Martin, H. Tagawa, Z. Haiman, R. Perna, Monthly Notices of the
Royal Astronomical Society 537 (2025) 3396–3420.
date_created: 2026-01-31T09:30:19Z
date_published: 2025-03-01T00:00:00Z
date_updated: 2026-02-10T09:00:44Z
day: '01'
ddc:
- '520'
doi: 10.1093/mnras/staf237
extern: '1'
external_id:
arxiv:
- '2405.09380'
has_accepted_license: '1'
intvolume: ' 537'
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/staf237
month: '03'
oa: 1
oa_version: Published Version
page: 3396-3420
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'
status: public
title: Time-dependent models of AGN discs with radiation from embedded stellar-mass
black holes
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: 537
year: '2025'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
PlanS_conform: '1'
_id: '18172'
abstract:
- lang: eng
text: Red Giant stars host solar-like oscillations which have mixed character, being
sensitive to conditions both in the outer convection zone and deep within the
interior. The properties of these modes are sensitive to both core rotation and
magnetic fields. While asteroseismic studies of the former have been done on a
large scale, studies of the latter are currently limited to tens of stars. We
aim to produce the first large catalogue of both magnetic and rotational perturbations.
We jointly constrain these parameters by devising an automated method for fitting
the power spectra directly. We successfully apply the method to 302 low-luminosity
red giants. We find a clear bimodality in core rotation rate. The primary peak
is at δνrot = 0.32 μHz, and the secondary at δνrot = 0.47 μHz. Combining our results
with literature values, we find that the percentage of stars rotating much more
rapidly than the population average increases with evolutionary state. We measure
magnetic splittings of 2σ significance in 23 stars. While the most extreme magnetic
splitting values appear in stars with masses > 1.1M⊙, implying they formerly hosted
a convective core, a small but statistically significant magnetic splitting is
measured at lower masses. Asymmetry between the frequencies of a rotationally
split multiplet has previously been used to diagnose the presence of a magnetic
perturbation. We find that of the stars with a significant detection of magnetic
perturbation, 43\% do not show strong asymmetry. We find no strong evidence of
correlation between the rotation and magnetic parameters.
acknowledgement: EJH, WJC, and GRD acknowledge the support of Science and Technology
Facilities Council. MBN acknowledges support from the UK Space Agency. JMJO acknowledges
support from NASA through the NASA Hubble Fellowship grant HST-HF2-51517.001, awarded
by STScI (Space Telescope Science Institute), which is operated by the Association
of Universities for Research in Astronomy, Incorporated, under NASA contract NAS5-26555.
The authors acknowledge use of the Blue-BEAR HPC service at the University of Birmingham.
This paper includes data collected by the Kepler mission and obtained from the MAST
data archive at the Space Telescope Science Institute (STScI). Funding for the Kepler
mission was provided by the NASA Science Mission Directorate. This work has made
use of data from the European Space Agency (ESA) mission Gaia (https://www.cosmos.esa.int/web/gaia),
processed by the Gaia Data Processing and Analysis Consortium (DPAC, https://www.cosmos.esa.int/web/gaia/dpac/consortium).
Funding for the DPAC was provided by national institutions, in particular the institutions
participating in the Gaia Multilateral Agreement. This paper received funding from
the European Research Council (ERC) under the European Union’s Horizon 2020 research
and innovation programme (CartographY GA. 804752). SD and JB acknowledge support
from the Centre National d’Etudes Spatiales (CNES).
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: Emily J.
full_name: Hatt, Emily J.
last_name: Hatt
- first_name: J. M.Joel
full_name: Ong, J. M.Joel
last_name: Ong
- first_name: Martin B.
full_name: Nielsen, Martin B.
last_name: Nielsen
- first_name: William J.
full_name: Chaplin, William J.
last_name: Chaplin
- first_name: Guy R.
full_name: Davies, Guy R.
last_name: Davies
- first_name: Sébastien
full_name: Deheuvels, Sébastien
last_name: Deheuvels
- first_name: Jérôme
full_name: Ballot, Jérôme
last_name: Ballot
- first_name: Gang
full_name: Li, Gang
last_name: Li
- first_name: Lisa Annabelle
full_name: Bugnet, Lisa Annabelle
id: d9edb345-f866-11ec-9b37-d119b5234501
last_name: Bugnet
orcid: 0000-0003-0142-4000
citation:
ama: Hatt EJ, Ong JMJ, Nielsen MB, et al. Asteroseismic signatures of core magnetism
and rotation in hundreds of low-luminosity red giants. Monthly Notices of the
Royal Astronomical Society. 2024;534(2):1060-1076. doi:10.1093/mnras/stae2053
apa: Hatt, E. J., Ong, J. M. J., Nielsen, M. B., Chaplin, W. J., Davies, G. R.,
Deheuvels, S., … Bugnet, L. A. (2024). Asteroseismic signatures of core magnetism
and rotation in hundreds of low-luminosity red giants. Monthly Notices of the
Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stae2053
chicago: Hatt, Emily J., J. M.Joel Ong, Martin B. Nielsen, William J. Chaplin, Guy
R. Davies, Sébastien Deheuvels, Jérôme Ballot, Gang Li, and Lisa Annabelle Bugnet.
“Asteroseismic Signatures of Core Magnetism and Rotation in Hundreds of Low-Luminosity
Red Giants.” Monthly Notices of the Royal Astronomical Society. Oxford
University Press, 2024. https://doi.org/10.1093/mnras/stae2053.
ieee: E. J. Hatt et al., “Asteroseismic signatures of core magnetism and
rotation in hundreds of low-luminosity red giants,” Monthly Notices of the
Royal Astronomical Society, vol. 534, no. 2. Oxford University Press, pp.
1060–1076, 2024.
ista: Hatt EJ, Ong JMJ, Nielsen MB, Chaplin WJ, Davies GR, Deheuvels S, Ballot J,
Li G, Bugnet LA. 2024. Asteroseismic signatures of core magnetism and rotation
in hundreds of low-luminosity red giants. Monthly Notices of the Royal Astronomical
Society. 534(2), 1060–1076.
mla: Hatt, Emily J., et al. “Asteroseismic Signatures of Core Magnetism and Rotation
in Hundreds of Low-Luminosity Red Giants.” Monthly Notices of the Royal Astronomical
Society, vol. 534, no. 2, Oxford University Press, 2024, pp. 1060–76, doi:10.1093/mnras/stae2053.
short: E.J. Hatt, J.M.J. Ong, M.B. Nielsen, W.J. Chaplin, G.R. Davies, S. Deheuvels,
J. Ballot, G. Li, L.A. Bugnet, Monthly Notices of the Royal Astronomical Society
534 (2024) 1060–1076.
date_created: 2024-10-06T22:01:11Z
date_published: 2024-10-01T00:00:00Z
date_updated: 2025-09-08T09:53:01Z
day: '01'
ddc:
- '520'
department:
- _id: LiBu
doi: 10.1093/mnras/stae2053
external_id:
arxiv:
- '2409.01157'
isi:
- '001320536900011'
file:
- access_level: open_access
checksum: b79f3c6a5991516abbcc8d34fa4bfb5f
content_type: application/pdf
creator: dernst
date_created: 2024-10-07T09:14:03Z
date_updated: 2024-10-07T09:14:03Z
file_id: '18182'
file_name: 2024_MonthlyNRoyalAstronSoc_Hatt.pdf
file_size: 2813008
relation: main_file
success: 1
file_date_updated: 2024-10-07T09:14:03Z
has_accepted_license: '1'
intvolume: ' 534'
isi: 1
issue: '2'
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
page: 1060-1076
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: Asteroseismic signatures of core magnetism and rotation in hundreds of low-luminosity
red giants
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: 534
year: '2024'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
_id: '18523'
abstract:
- lang: eng
text: "Recent observations from the EIGER JWST program have measured for the first
time the quasar–galaxy cross-correlation function at z ≈ 6. The autocorrelation
function of faint z ≈ 6 quasars was also recently estimated. These measurements
provide key insights into the properties of quasars and galaxies at high redshift
and their relation with the host dark matter haloes. In this work, we interpret
these data building upon an empirical quasar population model that has been applied
successfully to quasar clustering and demographic measurements at z ≈ 2–4. We
use a new, large-volume N-body simulation with more than a trillion particles,
FLAMINGO-10k, to model quasars and galaxies simultaneously. We successfully reproduce
observations of z ≈ 6 quasars and galaxies (i.e. their clustering properties and
luminosity functions), and infer key quantities such as their luminosity–halo
mass relation, the mass function of their host haloes, and their duty cycle/occupation
fraction. Our key findings\r\nare (i) quasars reside on average in ≈ 1012.5 M
haloes (corresponding to ≈ 5σ fluctuations in the initial conditions of the linear
density field), but the distribution of host halo masses is quite broad; (ii)
the duty cycle of (UV-bright) quasar activity is relatively low (≈ 1 per cent);
(iii) galaxies (that are bright in [O III]) live in much smaller haloes (≈ 1010.9
M) and have a larger duty cycle (occupation fraction) of ≈ 13 per cent. Finally,
we focus on the inferred properties of quasars and present a homogeneous analysis
of their evolution with redshift. The picture that emerges reveals a strong evolution
of the host halo mass and duty cycle of quasars at z ≈ 2–6, and calls for new
investigations of the role of quasar activity across cosmic time."
acknowledgement: "We are grateful to Junya Arita and the SHELLQs team for sharing
their data on the quasar autocorrelation function and to Jan-Torge Schindler for
discussion on the QLF. We acknowledge helpful conversations with the ENIGMA group
at UC Santa Barbara and Leiden University. EP is grateful to Rob McGibbon and Victor
Forouhar Moreno for help with the simulation outputs, and to Timo Kist, Jiamu Huang,
and Vikram Khaire for comments on an early version of the manuscript. JFH and EP
acknowledge support from the European Research Council (ERC) under the European
Union’s Horizon 2020 research and innovation program (grant agreement No 885301).
This work is partly supported by funding from the European Union’s Horizon 2020
research and innovation programme under the Marie Skłodowska-Curie grant agreement
No 860744 (BiD4BESt). FW acknowledges support from NSF grant AST-2308258. This 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 Director’s Discretionary Time allocation in 2023/24, under
the auspices of the UKRI-funded\r\nDiRAC 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."
article_processing_charge: Yes
article_type: original
author:
- first_name: Elia
full_name: Pizzati, Elia
last_name: Pizzati
- first_name: Joseph F.
full_name: Hennawi, Joseph F.
last_name: Hennawi
- first_name: Joop
full_name: Schaye, Joop
last_name: Schaye
- first_name: Matthieu
full_name: Schaller, Matthieu
last_name: Schaller
- first_name: Anna Christina
full_name: Eilers, Anna Christina
last_name: Eilers
- first_name: Feige
full_name: Wang, Feige
last_name: Wang
- first_name: Carlos S.
full_name: Frenk, Carlos S.
last_name: Frenk
- first_name: Willem
full_name: Elbers, Willem
last_name: Elbers
- first_name: John C.
full_name: Helly, John C.
last_name: Helly
- 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: Rongmon
full_name: Bordoloi, Rongmon
last_name: Bordoloi
- first_name: Daichi
full_name: Kashino, Daichi
last_name: Kashino
- first_name: Rohan P.
full_name: Naidu, Rohan P.
last_name: Naidu
- first_name: Minghao
full_name: Yue, Minghao
last_name: Yue
citation:
ama: Pizzati E, Hennawi JF, Schaye J, et al. A unified model for the clustering
of quasars and galaxies at z ≈ 6. Monthly Notices of the Royal Astronomical
Society. 2024;534(4):3155-3175. doi:10.1093/mnras/stae2307
apa: Pizzati, E., Hennawi, J. F., Schaye, J., Schaller, M., Eilers, A. C., Wang,
F., … Yue, M. (2024). A unified model for the clustering of quasars and galaxies
at z ≈ 6. Monthly Notices of the Royal Astronomical Society. Oxford University
Press. https://doi.org/10.1093/mnras/stae2307
chicago: Pizzati, Elia, Joseph F. Hennawi, Joop Schaye, Matthieu Schaller, Anna
Christina Eilers, Feige Wang, Carlos S. Frenk, et al. “A Unified Model for the
Clustering of Quasars and Galaxies at z ≈ 6.” Monthly Notices of the Royal
Astronomical Society. Oxford University Press, 2024. https://doi.org/10.1093/mnras/stae2307.
ieee: E. Pizzati et al., “A unified model for the clustering of quasars and
galaxies at z ≈ 6,” Monthly Notices of the Royal Astronomical Society,
vol. 534, no. 4. Oxford University Press, pp. 3155–3175, 2024.
ista: Pizzati E, Hennawi JF, Schaye J, Schaller M, Eilers AC, Wang F, Frenk CS,
Elbers W, Helly JC, Mackenzie R, Matthee JJ, Bordoloi R, Kashino D, Naidu RP,
Yue M. 2024. A unified model for the clustering of quasars and galaxies at z ≈
6. Monthly Notices of the Royal Astronomical Society. 534(4), 3155–3175.
mla: Pizzati, Elia, et al. “A Unified Model for the Clustering of Quasars and Galaxies
at z ≈ 6.” Monthly Notices of the Royal Astronomical Society, vol. 534,
no. 4, Oxford University Press, 2024, pp. 3155–75, doi:10.1093/mnras/stae2307.
short: E. Pizzati, J.F. Hennawi, J. Schaye, M. Schaller, A.C. Eilers, F. Wang, C.S.
Frenk, W. Elbers, J.C. Helly, R. Mackenzie, J.J. Matthee, R. Bordoloi, D. Kashino,
R.P. Naidu, M. Yue, Monthly Notices of the Royal Astronomical Society 534 (2024)
3155–3175.
date_created: 2024-11-10T23:01:58Z
date_published: 2024-11-01T00:00:00Z
date_updated: 2025-09-08T14:40:22Z
day: '01'
ddc:
- '520'
department:
- _id: JoMa
doi: 10.1093/mnras/stae2307
external_id:
isi:
- '001335663900008'
file:
- access_level: open_access
checksum: 9ea6285dd1d04d7a9e7b40a4c9e11edb
content_type: application/pdf
creator: dernst
date_created: 2024-11-12T07:17:26Z
date_updated: 2024-11-12T07:17:26Z
file_id: '18542'
file_name: 2024_MonthlyNRoyalAstronSoc_Pizzati.pdf
file_size: 2954312
relation: main_file
success: 1
file_date_updated: 2024-11-12T07:17:26Z
has_accepted_license: '1'
intvolume: ' 534'
isi: 1
issue: '4'
language:
- iso: eng
month: '11'
oa: 1
oa_version: Published Version
page: 3155-3175
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: A unified model for the clustering of quasars and galaxies 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: 534
year: '2024'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
_id: '18585'
abstract:
- lang: eng
text: We present the census of Hβ+[OIII] 4960,5008 Åemitters at 6.87 galaxies. We report a rapid decline
of the [OIII] luminosity density at z≳6−7 which cannot be explained by the evolution
of the cosmic star-formation rate density. Finally we find that FRESCO detects
in only 2h galaxies likely accounting for ∼10−20% of the ionising budget at z=7−8
(assuming an escape fraction of 10%), raising the prospect of directly detecting
a significant fraction of the sources of reionisation with JWST.
acknowledgement: "The authors thank the anonymous referee for comments and suggestions
which improved this paper. RAM thanks R. Kannan for sharing emission line luminosities
from THESAN and H. Katz for similar data from an early version of the SPHINX20 data
release (we use the final data release in this paper). The authors thank the CONGRESS
team for proposing and designing their program with a zero exclusive access period.\r\nRAM,
PA, ACP, and AW acknowledge support from the Swiss National Science Foundation (SNSF)
through project grant 200020_207349. PA, AW, EG, and MX acknowledge support from
the Swiss State Secretariat for Education, Research and Innovation (SERI) under
contract number MB22.00072. YF acknowledges support by JSPS KAKENHI grant number
JP22K21349 and JP23K13149. RPN 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. MS acknowledges
support from the European Research Commission Grant 101088789 (SFEER), from the
CIDEGENT/2021/059 grant by Generalitat Valenciana, and from project PID2019-109592GB-I00/AEI/10.13039/501100011033
by the Spanish Ministerio de Ciencia e Innovación - Agencia Estatal de Investigación.
The Cosmic Dawn Center (DAWN) is funded by the Danish National Research Foundation
under grant no. 140. Cloud-based data processing and file storage for this work
is provided by the AWS Cloud Credits for Research program. RJB and MS acknowledges
support from NWO grant TOP1.16.057.\r\nThis work is based on observations made with
the NASA/ESA/CSA JWST. The raw 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 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."
article_processing_charge: Yes
article_type: original
author:
- first_name: R. A.
full_name: Meyer, R. A.
last_name: Meyer
- first_name: P. A.
full_name: Oesch, P. A.
last_name: Oesch
- first_name: E.
full_name: Giovinazzo, E.
last_name: Giovinazzo
- first_name: A.
full_name: Weibel, A.
last_name: Weibel
- first_name: G.
full_name: Brammer, G.
last_name: Brammer
- 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. P.
full_name: Naidu, R. P.
last_name: Naidu
- first_name: R. J.
full_name: Bouwens, R. J.
last_name: Bouwens
- first_name: J.
full_name: Chisholm, J.
last_name: Chisholm
- first_name: A.
full_name: Covelo-Paz, A.
last_name: Covelo-Paz
- first_name: Y.
full_name: Fudamoto, Y.
last_name: Fudamoto
- first_name: M.
full_name: Maseda, M.
last_name: Maseda
- first_name: E.
full_name: Nelson, E.
last_name: Nelson
- first_name: I.
full_name: Shivaei, I.
last_name: Shivaei
- first_name: M.
full_name: Xiao, M.
last_name: Xiao
- first_name: T.
full_name: Herard-Demanche, T.
last_name: Herard-Demanche
- first_name: G. D.
full_name: Illingworth, G. D.
last_name: Illingworth
- first_name: J.
full_name: Kerutt, J.
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: I.
full_name: Labbe, I.
last_name: Labbe
- first_name: E.
full_name: Leonova, E.
last_name: Leonova
- first_name: D.
full_name: Magee, D.
last_name: Magee
- first_name: J.
full_name: Matharu, J.
last_name: Matharu
- first_name: G.
full_name: Prieto Lyon, G.
last_name: Prieto Lyon
- first_name: N.
full_name: Reddy, N.
last_name: Reddy
- first_name: D.
full_name: Schaerer, D.
last_name: Schaerer
- first_name: A.
full_name: Shapley, A.
last_name: Shapley
- first_name: M.
full_name: Stefanon, M.
last_name: Stefanon
- first_name: M. A.
full_name: Wozniak, M. A.
last_name: Wozniak
- first_name: S.
full_name: Wuyts, S.
last_name: Wuyts
citation:
ama: 'Meyer RA, Oesch PA, Giovinazzo E, et al. JWST FRESCO: A comprehensive census
of H β + [O iii] emitters at 6.8 < z < 9.0 in the GOODS fields. Monthly
Notices of the Royal Astronomical Society. 2024;535(1):1067-1094. doi:10.1093/mnras/stae2353'
apa: 'Meyer, R. A., Oesch, P. A., Giovinazzo, E., Weibel, A., Brammer, G., Matthee,
J. J., … Wuyts, S. (2024). JWST FRESCO: A comprehensive census of H β + [O iii]
emitters at 6.8 < z < 9.0 in the GOODS fields. Monthly Notices of the
Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stae2353'
chicago: 'Meyer, R. A., P. A. Oesch, E. Giovinazzo, A. Weibel, G. Brammer, Jorryt
J Matthee, R. P. Naidu, et al. “JWST FRESCO: A Comprehensive Census of H β + [O
Iii] Emitters at 6.8 < z < 9.0 in the GOODS Fields.” Monthly Notices
of the Royal Astronomical Society. Oxford University Press, 2024. https://doi.org/10.1093/mnras/stae2353.'
ieee: 'R. A. Meyer et al., “JWST FRESCO: A comprehensive census of H β +
[O iii] emitters at 6.8 < z < 9.0 in the GOODS fields,” Monthly Notices
of the Royal Astronomical Society, vol. 535, no. 1. Oxford University Press,
pp. 1067–1094, 2024.'
ista: 'Meyer RA, Oesch PA, Giovinazzo E, Weibel A, Brammer G, Matthee JJ, Naidu
RP, Bouwens RJ, Chisholm J, Covelo-Paz A, Fudamoto Y, Maseda M, Nelson E, Shivaei
I, Xiao M, Herard-Demanche T, Illingworth GD, Kerutt J, Kramarenko I, Labbe I,
Leonova E, Magee D, Matharu J, Prieto Lyon G, Reddy N, Schaerer D, Shapley A,
Stefanon M, Wozniak MA, Wuyts S. 2024. JWST FRESCO: A comprehensive census of
H β + [O iii] emitters at 6.8 < z < 9.0 in the GOODS fields. Monthly Notices
of the Royal Astronomical Society. 535(1), 1067–1094.'
mla: 'Meyer, R. A., et al. “JWST FRESCO: A Comprehensive Census of H β + [O Iii]
Emitters at 6.8 < z < 9.0 in the GOODS Fields.” Monthly Notices of
the Royal Astronomical Society, vol. 535, no. 1, Oxford University Press,
2024, pp. 1067–94, doi:10.1093/mnras/stae2353.'
short: R.A. Meyer, P.A. Oesch, E. Giovinazzo, A. Weibel, G. Brammer, J.J. Matthee,
R.P. Naidu, R.J. Bouwens, J. Chisholm, A. Covelo-Paz, Y. Fudamoto, M. Maseda,
E. Nelson, I. Shivaei, M. Xiao, T. Herard-Demanche, G.D. Illingworth, J. Kerutt,
I. Kramarenko, I. Labbe, E. Leonova, D. Magee, J. Matharu, G. Prieto Lyon, N.
Reddy, D. Schaerer, A. Shapley, M. Stefanon, M.A. Wozniak, S. Wuyts, Monthly Notices
of the Royal Astronomical Society 535 (2024) 1067–1094.
date_created: 2024-11-24T23:01:49Z
date_published: 2024-11-01T00:00:00Z
date_updated: 2025-09-08T14:47:58Z
day: '01'
ddc:
- '520'
department:
- _id: JoMa
doi: 10.1093/mnras/stae2353
external_id:
isi:
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month: '11'
oa: 1
oa_version: Published Version
page: 1067-1094
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: 'JWST FRESCO: A comprehensive census of H β + [O iii] emitters at 6.8 < z <
9.0 in the GOODS fields'
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: 535
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 < z < 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'
date_created: 2024-01-22T08:22:17Z
date_published: 2024-02-01T00:00:00Z
date_updated: 2025-09-04T11:51:50Z
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
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file_name: 2024_MNAstronomSoc_Kramarenko.pdf
file_size: 4521738
relation: main_file
success: 1
file_date_updated: 2024-01-23T12:30:45Z
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intvolume: ' 527'
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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'
scopus_import: '1'
status: public
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'
...