---
_id: '15209'
abstract:
- lang: eng
text: It has been recently suggested that white dwarfs generate magnetic fields
in a process analogous to the Earth. The crystallization of the core creates a
compositional inversion that drives convection, and combined with rotation, this
can sustain a magnetic dynamo. We reanalyse the dynamo mechanism, arising from
the slow crystallization of the core, and find convective turnover times tconv
of weeks to months – longer by orders of magnitude than previously thought. With
white dwarf spin periods P ≪ tconv, crystallization-driven dynamos are almost
always in the fast-rotating regime, where the magnetic field B is at least in
equipartition with the convective motion and is possibly further enhanced by a
factor of B ∝ (tconv/P)1/2, depending on the assumed dynamo scaling law. We track
the growth of the crystallized core using MESA and compute the magnetic field
B(Teff) as a function of the white dwarf’s effective temperature Teff. We compare
this prediction with observations and show that crystallization-driven dynamos
can explain some – but not all – of the ∼MG magnetic fields measured for single
white dwarfs, as well as the stronger fields measured for white dwarfs in cataclysmic
variables, which were spun up by mass accretion to short P. Our B(Teff) curves
might also explain the clustering of white dwarfs with Balmer emission lines around
Teff ≈ 7500 K.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Sivan
full_name: Ginzburg, Sivan
last_name: Ginzburg
- first_name: Jim
full_name: Fuller, Jim
last_name: Fuller
- first_name: Adela
full_name: Kawka, Adela
last_name: Kawka
- first_name: Ilaria
full_name: Caiazzo, Ilaria
id: 8ae5b6e7-2a03-11ee-914d-b58ed7a3b47d
last_name: Caiazzo
orcid: 0000-0002-4770-5388
citation:
ama: Ginzburg S, Fuller J, Kawka A, Caiazzo I. Slow convection and fast rotation
in crystallization-driven white dwarf dynamos. Monthly Notices of the Royal
Astronomical Society. 2022;514(3):4111-4119. doi:10.1093/mnras/stac1363
apa: Ginzburg, S., Fuller, J., Kawka, A., & Caiazzo, I. (2022). Slow convection
and fast rotation in crystallization-driven white dwarf dynamos. Monthly Notices
of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stac1363
chicago: Ginzburg, Sivan, Jim Fuller, Adela Kawka, and Ilaria Caiazzo. “Slow Convection
and Fast Rotation in Crystallization-Driven White Dwarf Dynamos.” Monthly Notices
of the Royal Astronomical Society. Oxford University Press, 2022. https://doi.org/10.1093/mnras/stac1363.
ieee: S. Ginzburg, J. Fuller, A. Kawka, and I. Caiazzo, “Slow convection and fast
rotation in crystallization-driven white dwarf dynamos,” Monthly Notices of
the Royal Astronomical Society, vol. 514, no. 3. Oxford University Press,
pp. 4111–4119, 2022.
ista: Ginzburg S, Fuller J, Kawka A, Caiazzo I. 2022. Slow convection and fast rotation
in crystallization-driven white dwarf dynamos. Monthly Notices of the Royal Astronomical
Society. 514(3), 4111–4119.
mla: Ginzburg, Sivan, et al. “Slow Convection and Fast Rotation in Crystallization-Driven
White Dwarf Dynamos.” Monthly Notices of the Royal Astronomical Society,
vol. 514, no. 3, Oxford University Press, 2022, pp. 4111–19, doi:10.1093/mnras/stac1363.
short: S. Ginzburg, J. Fuller, A. Kawka, I. Caiazzo, Monthly Notices of the Royal
Astronomical Society 514 (2022) 4111–4119.
date_created: 2024-03-26T09:53:04Z
date_published: 2022-05-16T00:00:00Z
date_updated: 2024-04-02T07:24:15Z
day: '16'
doi: 10.1093/mnras/stac1363
extern: '1'
external_id:
arxiv:
- '2202.12902'
intvolume: ' 514'
issue: '3'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2202.12902
month: '05'
oa: 1
oa_version: Preprint
page: 4111-4119
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: Slow convection and fast rotation in crystallization-driven white dwarf dynamos
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 514
year: '2022'
...
---
_id: '15212'
abstract:
- lang: eng
text: We determine the distribution of cooling ages of massive Gaia EDR3 white dwarfs
identified with over 90 per cent probability within 200 pc and with mass in the
range 0.95–1.25 M⊙. Using three sets of publicly available models, we consider
sub-samples of these white dwarfs sorted into three equally spaced mass bins.
Under the assumption of a constant white dwarf formation rate, we find an excess
of white dwarfs, both along the Q branch and below it, corresponding respectively
to stars that are in the process of freezing and those that are completely frozen.
We compare the cooling age distributions for each of these bins to the recently
determined time-varying star formation rate of Gaia DR2 main sequence stars. For
white dwarfs in the two lightest mass bins, spanning the mass range 0.95–1.15
M⊙, we find that the cumulative cooling age distribution is statistically consistent
with the expectation from the star formation rate. For white dwarfs in the heaviest
mass bin, 1.15–1.25 M⊙, we find that their cumulative distribution is inconsistent
with the star formation rate for all of the models considered; instead, we find
that their cooling age distribution is well fitted by a linear combination of
the distribution expected for single stellar evolution products and the distribution
expected for double white dwarf merger products when approximately 40–50 per cent
of the 1.15–1.25 M⊙ white dwarfs that formed over the past 4 Gyr are produced
through double white dwarf mergers.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Leesa
full_name: Fleury, Leesa
last_name: Fleury
- first_name: Ilaria
full_name: Caiazzo, Ilaria
id: 8ae5b6e7-2a03-11ee-914d-b58ed7a3b47d
last_name: Caiazzo
orcid: 0000-0002-4770-5388
- first_name: Jeremy
full_name: Heyl, Jeremy
last_name: Heyl
citation:
ama: Fleury L, Caiazzo I, Heyl J. The cooling of massive white dwarfs from Gaia
EDR3. Monthly Notices of the Royal Astronomical Society. 2022;511(4):5984-5993.
doi:10.1093/mnras/stac458
apa: Fleury, L., Caiazzo, I., & Heyl, J. (2022). The cooling of massive white
dwarfs from Gaia EDR3. Monthly Notices of the Royal Astronomical Society.
Oxford University Press. https://doi.org/10.1093/mnras/stac458
chicago: Fleury, Leesa, Ilaria Caiazzo, and Jeremy Heyl. “The Cooling of Massive
White Dwarfs from Gaia EDR3.” Monthly Notices of the Royal Astronomical
Society. Oxford University Press, 2022. https://doi.org/10.1093/mnras/stac458.
ieee: L. Fleury, I. Caiazzo, and J. Heyl, “The cooling of massive white dwarfs from
Gaia EDR3,” Monthly Notices of the Royal Astronomical Society, vol.
511, no. 4. Oxford University Press, pp. 5984–5993, 2022.
ista: Fleury L, Caiazzo I, Heyl J. 2022. The cooling of massive white dwarfs from
Gaia EDR3. Monthly Notices of the Royal Astronomical Society. 511(4), 5984–5993.
mla: Fleury, Leesa, et al. “The Cooling of Massive White Dwarfs from Gaia
EDR3.” Monthly Notices of the Royal Astronomical Society, vol. 511, no.
4, Oxford University Press, 2022, pp. 5984–93, doi:10.1093/mnras/stac458.
short: L. Fleury, I. Caiazzo, J. Heyl, Monthly Notices of the Royal Astronomical
Society 511 (2022) 5984–5993.
date_created: 2024-03-26T10:31:05Z
date_published: 2022-02-21T00:00:00Z
date_updated: 2024-04-02T07:26:50Z
day: '21'
doi: 10.1093/mnras/stac458
extern: '1'
external_id:
arxiv:
- '2110.00598'
intvolume: ' 511'
issue: '4'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2110.00598
month: '02'
oa: 1
oa_version: Preprint
page: 5984-5993
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 cooling of massive white dwarfs from Gaia EDR3
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 511
year: '2022'
...
---
_id: '17562'
abstract:
- lang: eng
text: Ongoing and planned weak lensing (WL) surveys are becoming deep enough to
contain information on angular scales down to a few arcmin. To fully extract information
from these small scales, we must capture non-Gaussian features in the cosmological
WL signal while accurately accounting for baryonic effects. In this work, we account
for baryonic physics via a baryonic correction model that modifies the matter
distribution in dark matter-only N-body simulations, mimicking the effects of
galaxy formation and feedback. We implement this model in a large suite of ray-tracing
simulations, spanning a grid of cosmological models in Ωm−σ8 space. We then develop
a convolutional neural network (CNN) architecture to learn and constrain cosmological
and baryonic parameters simultaneously from the simulated WL convergence maps.
We find that in a Hyper-Suprime Cam-like survey, our CNN achieves a 1.7× tighter
constraint in Ωm−σ8 space (1σ area) than the power spectrum and 2.1× tighter than
the peak counts, showing that the CNN can efficiently extract non-Gaussian cosmological
information even while marginalizing over baryonic effects. When we combine our
CNN with the power spectrum, the baryonic effects degrade the constraint in Ωm−σ8
space by a factor of 2.4, compared to the much worse degradation by a factor of
4.7 or 3.7 from either method alone.
article_processing_charge: No
article_type: original
author:
- first_name: Tianhuan
full_name: Lu, Tianhuan
last_name: Lu
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: José Manuel
full_name: Zorrilla Matilla, José Manuel
last_name: Zorrilla Matilla
citation:
ama: Lu T, Haiman Z, Zorrilla Matilla JM. Simultaneously constraining cosmology
and baryonic physics via deep learning from weak lensing. Monthly Notices of
the Royal Astronomical Society. 2022;511(1):1518-1528. doi:10.1093/mnras/stac161
apa: Lu, T., Haiman, Z., & Zorrilla Matilla, J. M. (2022). Simultaneously constraining
cosmology and baryonic physics via deep learning from weak lensing. Monthly
Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stac161
chicago: Lu, Tianhuan, Zoltán Haiman, and José Manuel Zorrilla Matilla. “Simultaneously
Constraining Cosmology and Baryonic Physics via Deep Learning from Weak Lensing.”
Monthly Notices of the Royal Astronomical Society. Oxford University Press,
2022. https://doi.org/10.1093/mnras/stac161.
ieee: T. Lu, Z. Haiman, and J. M. Zorrilla Matilla, “Simultaneously constraining
cosmology and baryonic physics via deep learning from weak lensing,” Monthly
Notices of the Royal Astronomical Society, vol. 511, no. 1. Oxford University
Press, pp. 1518–1528, 2022.
ista: Lu T, Haiman Z, Zorrilla Matilla JM. 2022. Simultaneously constraining cosmology
and baryonic physics via deep learning from weak lensing. Monthly Notices of the
Royal Astronomical Society. 511(1), 1518–1528.
mla: Lu, Tianhuan, et al. “Simultaneously Constraining Cosmology and Baryonic Physics
via Deep Learning from Weak Lensing.” Monthly Notices of the Royal Astronomical
Society, vol. 511, no. 1, Oxford University Press, 2022, pp. 1518–28, doi:10.1093/mnras/stac161.
short: T. Lu, Z. Haiman, J.M. Zorrilla Matilla, Monthly Notices of the Royal Astronomical
Society 511 (2022) 1518–1528.
date_created: 2024-09-05T12:02:56Z
date_published: 2022-01-28T00:00:00Z
date_updated: 2024-09-18T12:41:52Z
day: '28'
doi: 10.1093/mnras/stac161
extern: '1'
intvolume: ' 511'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/stac161
month: '01'
oa: 1
oa_version: Published Version
page: 1518-1528
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
- 1365-2966
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Simultaneously constraining cosmology and baryonic physics via deep learning
from weak lensing
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 511
year: '2022'
...
---
_id: '17571'
abstract:
- lang: eng
text: 'The existence of 109 M⊙ supermassive black holes (SMBHs) within the first
billion years of the Universe remains a puzzle in our conventional understanding
of black hole formation and growth. Several suggested formation pathways for these
SMBHs lead to a heavy seed, with an initial black hole mass of 104–106 M⊙. This
can lead to an overly massive BH galaxy (OMBG), whose nuclear black hole’s mass
is comparable to or even greater than the surrounding stellar mass: the black
hole to stellar mass ratio is Mbh/M* ≫ 10−3, well in excess of the typical values
at lower redshift. We investigate how long these newborn BHs remain outliers in
the Mbh − M* relation, by exploring the subsequent evolution of two OMBGs previously
identified in the Renaissance simulations. We find that both OMBGs have Mbh/M*
> 1 during their entire life, from their birth at z ≈ 15 until they merge
with much more massive haloes at z ≈ 8. We find that the OMBGs are spatially resolvable
from their more massive, 1011 M⊙, neighbouring haloes until their mergers are
complete at z ≈ 8. This affords a window for future observations with JWST and
sensitive X-ray telescopes to diagnose the heavy-seed scenario, by detecting similar
OMBGs and establishing their uniquely high black hole-to-stellar mass ratio.'
article_processing_charge: No
article_type: original
author:
- first_name: Matthew T
full_name: Scoggins, Matthew T
last_name: Scoggins
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: John H
full_name: Wise, John H
last_name: Wise
citation:
ama: Scoggins MT, Haiman Z, Wise JH. How long do high redshift massive black hole
seeds remain outliers in black hole versus host galaxy relations? Monthly Notices
of the Royal Astronomical Society. 2022;519(2):2155-2168. doi:10.1093/mnras/stac3715
apa: Scoggins, M. T., Haiman, Z., & Wise, J. H. (2022). How long do high redshift
massive black hole seeds remain outliers in black hole versus host galaxy relations?
Monthly Notices of the Royal Astronomical Society. Oxford University Press.
https://doi.org/10.1093/mnras/stac3715
chicago: Scoggins, Matthew T, Zoltán Haiman, and John H Wise. “How Long Do High
Redshift Massive Black Hole Seeds Remain Outliers in Black Hole versus Host Galaxy
Relations?” Monthly Notices of the Royal Astronomical Society. Oxford University
Press, 2022. https://doi.org/10.1093/mnras/stac3715.
ieee: M. T. Scoggins, Z. Haiman, and J. H. Wise, “How long do high redshift massive
black hole seeds remain outliers in black hole versus host galaxy relations?,”
Monthly Notices of the Royal Astronomical Society, vol. 519, no. 2. Oxford
University Press, pp. 2155–2168, 2022.
ista: Scoggins MT, Haiman Z, Wise JH. 2022. How long do high redshift massive black
hole seeds remain outliers in black hole versus host galaxy relations? Monthly
Notices of the Royal Astronomical Society. 519(2), 2155–2168.
mla: Scoggins, Matthew T., et al. “How Long Do High Redshift Massive Black Hole
Seeds Remain Outliers in Black Hole versus Host Galaxy Relations?” Monthly
Notices of the Royal Astronomical Society, vol. 519, no. 2, Oxford University
Press, 2022, pp. 2155–68, doi:10.1093/mnras/stac3715.
short: M.T. Scoggins, Z. Haiman, J.H. Wise, Monthly Notices of the Royal Astronomical
Society 519 (2022) 2155–2168.
date_created: 2024-09-05T12:14:22Z
date_published: 2022-12-20T00:00:00Z
date_updated: 2024-09-19T07:18:22Z
day: '20'
doi: 10.1093/mnras/stac3715
extern: '1'
intvolume: ' 519'
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/stac3715
month: '12'
oa: 1
oa_version: Published Version
page: 2155-2168
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
- 1365-2966
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: How long do high redshift massive black hole seeds remain outliers in black
hole versus host galaxy relations?
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 519
year: '2022'
...
---
_id: '17580'
abstract:
- lang: eng
text: We present a study of optically selected dual Active Galactic Nuclei (AGN)
with projected separations of 3–97 kpc. Using multiwavelength (MWL) information
(optical, X-ray, mid-IR), we characterized the intrinsic nuclear properties of
this sample and compared them with those of isolated systems. Among the 124 X-ray-detected
AGN candidates, 52 appear in pairs and 72 as single X-ray sources. Through MWL
analysis, we confirmed the presence of the AGN in >80 per cent of the detected
targets in pairs (42 out of 52). X-ray spectral analysis confirms the trend of
increasing AGN luminosity with decreasing separation, suggesting that mergers
may have contributed to triggering more luminous AGN. Through X-ray/mid-IR ratio
versus X-ray colours, we estimated a fraction of Compton-thin AGN (with 1022 cm−2
< NH < 1024 cm−2) of about 80 per cent, while about 16 per cent
are Compton-thick sources (with NH > 1024 cm−2). These fractions of obscured
sources are larger than those found in samples of isolated AGN, confirming that
pairs of AGN show higher obscuration. This trend is further confirmed by comparing
the de-reddened [O iii] emission with the observed X-ray luminosity. However,
the derived fraction of Compton-thick sources in this sample at the early stages
of merging is lower than that reported for late-merging dual-AGN samples. Comparing
NH from X-rays with that derived from E(B − V) from narrow-line regions, we found
that the absorbing material is likely to be associated with the torus or broad-line
regions. We also explored the X-ray detection efficiency of dual-AGN candidates,
finding that, when observed properly (at on-axis positions and with long exposures),
X-ray data represent a powerful way to confirm and investigate dual-AGN systems.
article_processing_charge: No
author:
- first_name: Alessandra
full_name: De Rosa, Alessandra
last_name: De Rosa
- first_name: Cristian
full_name: Vignali, Cristian
last_name: Vignali
- first_name: Paola
full_name: Severgnini, Paola
last_name: Severgnini
- first_name: Stefano
full_name: Bianchi, Stefano
last_name: Bianchi
- first_name: Tamara
full_name: Bogdanović, Tamara
last_name: Bogdanović
- first_name: Maria
full_name: Charisi, Maria
last_name: Charisi
- first_name: Matteo
full_name: Guainazzi, Matteo
last_name: Guainazzi
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: S
full_name: Komossa, S
last_name: Komossa
- first_name: Zsolt
full_name: Paragi, Zsolt
last_name: Paragi
- first_name: Miguel
full_name: Perez-Torres, Miguel
last_name: Perez-Torres
- first_name: Enrico
full_name: Piconcelli, Enrico
last_name: Piconcelli
- first_name: Lorenzo
full_name: Ducci, Lorenzo
last_name: Ducci
- first_name: Manali
full_name: Parvatikar, Manali
last_name: Parvatikar
- first_name: Roberto
full_name: Serafinelli, Roberto
last_name: Serafinelli
citation:
ama: De Rosa A, Vignali C, Severgnini P, et al. The X-ray view of optically selected
dual AGN. Monthly Notices of the Royal Astronomical Society. 2022;519(4):5149-5160.
doi:10.1093/mnras/stac3664
apa: De Rosa, A., Vignali, C., Severgnini, P., Bianchi, S., Bogdanović, T., Charisi,
M., … Serafinelli, R. (2022). The X-ray view of optically selected dual AGN. Monthly
Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stac3664
chicago: De Rosa, Alessandra, Cristian Vignali, Paola Severgnini, Stefano Bianchi,
Tamara Bogdanović, Maria Charisi, Matteo Guainazzi, et al. “The X-Ray View of
Optically Selected Dual AGN.” Monthly Notices of the Royal Astronomical Society.
Oxford University Press, 2022. https://doi.org/10.1093/mnras/stac3664.
ieee: A. De Rosa et al., “The X-ray view of optically selected dual AGN,”
Monthly Notices of the Royal Astronomical Society, vol. 519, no. 4. Oxford
University Press, pp. 5149–5160, 2022.
ista: De Rosa A, Vignali C, Severgnini P, Bianchi S, Bogdanović T, Charisi M, Guainazzi
M, Haiman Z, Komossa S, Paragi Z, Perez-Torres M, Piconcelli E, Ducci L, Parvatikar
M, Serafinelli R. 2022. The X-ray view of optically selected dual AGN. Monthly
Notices of the Royal Astronomical Society. 519(4), 5149–5160.
mla: De Rosa, Alessandra, et al. “The X-Ray View of Optically Selected Dual AGN.”
Monthly Notices of the Royal Astronomical Society, vol. 519, no. 4, Oxford
University Press, 2022, pp. 5149–60, doi:10.1093/mnras/stac3664.
short: A. De Rosa, C. Vignali, P. Severgnini, S. Bianchi, T. Bogdanović, M. Charisi,
M. Guainazzi, Z. Haiman, S. Komossa, Z. Paragi, M. Perez-Torres, E. Piconcelli,
L. Ducci, M. Parvatikar, R. Serafinelli, Monthly Notices of the Royal Astronomical
Society 519 (2022) 5149–5160.
date_created: 2024-09-05T12:23:59Z
date_published: 2022-12-15T00:00:00Z
date_updated: 2024-09-19T11:24:50Z
day: '15'
doi: 10.1093/mnras/stac3664
extern: '1'
intvolume: ' 519'
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/stac3664
month: '12'
oa: 1
oa_version: None
page: 5149-5160
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
- 1365-2966
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: The X-ray view of optically selected dual AGN
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 519
year: '2022'
...
---
_id: '17588'
abstract:
- lang: eng
text: Supermassive stars (SMSs) with masses of M∗≃104--105 M⊙ are invoked as possible
seeds of high-redshift supermassive black holes, but it remains under debate whether
their protostar indeed acquires sufficient mass via gas accretion overcoming radiative
feedback. We investigate protostellar growth in dynamically heated atomic-cooling
haloes (ACHs) found in recent cosmological simulations, performing three-dimensional
radiation hydrodynamical (RHD) simulations that consider stellar evolution under
variable mass accretion. We find that one of the ACHs feeds the central protostar
at rates exceeding a critical value, above which the star evolves in a cool bloating
phase and hardly produces ionizing photons. Consequently, the stellar mass reaches
M∗≳104 M⊙ unimpeded by radiative feedback. In the other ACH, where the mass supply
rate is lower, the star spends most of its life as a hot main-sequence star, emitting
intense ionizing radiation. Then, the stellar mass growth is terminated around
500 M⊙ by photoevaporation of the circumstellar disk. A series of our RHD simulations
provide a formula of the final stellar mass determined either by stellar feedback
or their lifetime as a function of the mass supply rate from the parent cloud
in the absence of stellar radiation. Combining the results with the statistical
properties of SMS-forming clouds in high-redshift quasar progenitor haloes, we
construct a top-heavy mass distribution of primordial stars over M∗≃100--105 M⊙,
approximately following a power-law spectrum of ∝M−1.3∗ with a steeper decline
at M∗≳2×104 M⊙. Their massive BH remnants would be further fed via the dense debris
disk, powering "milli-quasars" with a bolometric luminosity of Lbol ≳ 1043 erg
s−1.
article_processing_charge: No
article_type: original
author:
- first_name: Daisuke
full_name: Toyouchi, Daisuke
last_name: Toyouchi
- first_name: Kohei
full_name: Inayoshi, Kohei
last_name: Inayoshi
- first_name: Wenxiu
full_name: Li, Wenxiu
last_name: Li
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: Rolf
full_name: Kuiper, Rolf
last_name: Kuiper
citation:
ama: 'Toyouchi D, Inayoshi K, Li W, Haiman Z, Kuiper R. Radiative feedback on supermassive
star formation: the massive end of the population III initial mass function. Monthly
Notices of the Royal Astronomical Society. 2022;518(2):1601-1616. doi:10.1093/mnras/stac3191'
apa: 'Toyouchi, D., Inayoshi, K., Li, W., Haiman, Z., & Kuiper, R. (2022). Radiative
feedback on supermassive star formation: the massive end of the population III
initial mass function. Monthly Notices of the Royal Astronomical Society.
Oxford University Press. https://doi.org/10.1093/mnras/stac3191'
chicago: 'Toyouchi, Daisuke, Kohei Inayoshi, Wenxiu Li, Zoltán Haiman, and Rolf
Kuiper. “Radiative Feedback on Supermassive Star Formation: The Massive End of
the Population III Initial Mass Function.” Monthly Notices of the Royal Astronomical
Society. Oxford University Press, 2022. https://doi.org/10.1093/mnras/stac3191.'
ieee: 'D. Toyouchi, K. Inayoshi, W. Li, Z. Haiman, and R. Kuiper, “Radiative feedback
on supermassive star formation: the massive end of the population III initial
mass function,” Monthly Notices of the Royal Astronomical Society, vol.
518, no. 2. Oxford University Press, pp. 1601–1616, 2022.'
ista: 'Toyouchi D, Inayoshi K, Li W, Haiman Z, Kuiper R. 2022. Radiative feedback
on supermassive star formation: the massive end of the population III initial
mass function. Monthly Notices of the Royal Astronomical Society. 518(2), 1601–1616.'
mla: 'Toyouchi, Daisuke, et al. “Radiative Feedback on Supermassive Star Formation:
The Massive End of the Population III Initial Mass Function.” Monthly Notices
of the Royal Astronomical Society, vol. 518, no. 2, Oxford University Press,
2022, pp. 1601–16, doi:10.1093/mnras/stac3191.'
short: D. Toyouchi, K. Inayoshi, W. Li, Z. Haiman, R. Kuiper, Monthly Notices of
the Royal Astronomical Society 518 (2022) 1601–1616.
date_created: 2024-09-05T12:33:59Z
date_published: 2022-11-09T00:00:00Z
date_updated: 2024-09-19T12:06:18Z
day: '09'
doi: 10.1093/mnras/stac3191
extern: '1'
intvolume: ' 518'
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/stac3191
month: '11'
oa: 1
oa_version: Published Version
page: 1601-1616
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
- 1365-2966
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Radiative feedback on supermassive star formation: the massive end of the
population III initial mass function'
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 518
year: '2022'
...
---
_id: '17599'
abstract:
- lang: eng
text: Next-generation weak lensing (WL) surveys, such as by the Vera Rubin Observatory,
the Roman Space Telescope, and the Euclid space mission, will supply vast amounts
of data probing small, highly non-linear scales. Extracting information from these
scales requires higher-order statistics and the controlling of related systematics
such as baryonic effects. To account for baryonic effects in cosmological analyses
at reduced computational cost, semi-analytic baryonic correction models (BCMs)
have been proposed. Here, we study the accuracy of a particular BCM (the A20-BCM)
for WL peak counts, a well-studied, simple, and effective higher-order statistic.
We compare WL peak counts generated from the full hydrodynamical simulation IllustrisTNG
and a baryon-corrected version of the corresponding dark matter-only simulation
IllustrisTNG-Dark. We apply galaxy shape noise matching depths reached by DES,
KiDS, HSC, LSST, Roman, and Euclid. We find that peak counts from the A20-BCM
are (i) accurate at per cent level for peaks with S/N < 4, (ii) statistically
indistinguishable from IllustrisTNG in most current and ongoing surveys, but (iii)
insufficient for deep future surveys covering the largest solid angles, such as
LSST and Euclid. We find that the BCM matches individual peaks accurately, but
underpredicts the amplitude of the highest peaks. We conclude that the A20-BCM
is a viable substitute for full hydrodynamical simulations in cosmological parameter
estimation from beyond-Gaussian statistics for ongoing and future surveys with
modest solid angles. For the largest surveys, the A20-BCM must be refined to provide
a more accurate match, especially to the highest peaks.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Max E
full_name: Lee, Max E
last_name: Lee
- first_name: Tianhuan
full_name: Lu, Tianhuan
last_name: Lu
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: Jia
full_name: Liu, Jia
last_name: Liu
- first_name: Ken
full_name: Osato, Ken
last_name: Osato
citation:
ama: Lee ME, Lu T, Haiman Z, Liu J, Osato K. Comparing weak lensing peak counts
in baryonic correction models to hydrodynamical simulations. Monthly Notices
of the Royal Astronomical Society. 2022;519(1):573-584. doi:10.1093/mnras/stac3592
apa: Lee, M. E., Lu, T., Haiman, Z., Liu, J., & Osato, K. (2022). Comparing
weak lensing peak counts in baryonic correction models to hydrodynamical simulations.
Monthly Notices of the Royal Astronomical Society. Oxford University Press.
https://doi.org/10.1093/mnras/stac3592
chicago: Lee, Max E, Tianhuan Lu, Zoltán Haiman, Jia Liu, and Ken Osato. “Comparing
Weak Lensing Peak Counts in Baryonic Correction Models to Hydrodynamical Simulations.”
Monthly Notices of the Royal Astronomical Society. Oxford University Press,
2022. https://doi.org/10.1093/mnras/stac3592.
ieee: M. E. Lee, T. Lu, Z. Haiman, J. Liu, and K. Osato, “Comparing weak lensing
peak counts in baryonic correction models to hydrodynamical simulations,” Monthly
Notices of the Royal Astronomical Society, vol. 519, no. 1. Oxford University
Press, pp. 573–584, 2022.
ista: Lee ME, Lu T, Haiman Z, Liu J, Osato K. 2022. Comparing weak lensing peak
counts in baryonic correction models to hydrodynamical simulations. Monthly Notices
of the Royal Astronomical Society. 519(1), 573–584.
mla: Lee, Max E., et al. “Comparing Weak Lensing Peak Counts in Baryonic Correction
Models to Hydrodynamical Simulations.” Monthly Notices of the Royal Astronomical
Society, vol. 519, no. 1, Oxford University Press, 2022, pp. 573–84, doi:10.1093/mnras/stac3592.
short: M.E. Lee, T. Lu, Z. Haiman, J. Liu, K. Osato, Monthly Notices of the Royal
Astronomical Society 519 (2022) 573–584.
date_created: 2024-09-05T13:06:13Z
date_published: 2022-12-08T00:00:00Z
date_updated: 2024-09-23T13:13:25Z
day: '08'
doi: 10.1093/mnras/stac3592
extern: '1'
external_id:
arxiv:
- '2201.08320'
intvolume: ' 519'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.2201.08320'
month: '12'
oa: 1
oa_version: Preprint
page: 573-584
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
- 1365-2966
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Comparing weak lensing peak counts in baryonic correction models to hydrodynamical
simulations
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 519
year: '2022'
...
---
_id: '11522'
abstract:
- lang: eng
text: The decline in abundance of Lyman-α (Lyα) emitting galaxies at z ≳ 6 is a
powerful and commonly used probe to constrain the progress of cosmic reionization.
We use the CODAII simulation, which is a radiation hydrodynamic simulation featuring
a box of ∼94 comoving Mpc side length, to compute the Lyα transmission properties
of the intergalactic medium (IGM) at z ∼ 5.8 to 7. Our results mainly confirm
previous studies, i.e. we find a declining Lyα transmission with redshift and
a large sightline-to-sightline variation. However, motivated by the recent discovery
of blue Lyα peaks at high redshift, we also analyse the IGM transmission on the
blue side, which shows a rapid decline at z ≳ 6 of the blue transmission. This
low transmission can be attributed not only to the presence of neutral regions
but also to the residual neutral hydrogen within ionized regions, for which a
density even as low as nHI∼10−9cm−3 (sometimes combined with kinematic effects)
leads to a significantly reduced visibility. Still, we find that ∼1 per cent of
sightlines towards M1600AB ∼ −21 galaxies at z ∼ 7 are transparent enough to allow
a transmission of a blue Lyα peak. We discuss our results in the context of the
interpretation of observations.
acknowledgement: The authors thank the referee for constructive feedback that improved
the outcome of this study. We are grateful to Antoinette Songaila Cowie for sharing
the ‘NEPLA4’ spectrum with us. This research has made use of NASA’s Astrophysics
Data System, and many open source projects such as trident (Hummels et al. 2017),
IPython (Pérez & Granger 2007), SciPy (Virtanen et al. 2019), NumPy (Walt et al.
2011), matplotlib (Hunter 2007), pandas (McKinney 2010), and the yt-project (Turk
et al. 2011). MG was supported by NASA through the NASA Hubble Fellowship grant
HST-HF2-51409 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. MG acknowledges support from NASA grants HST-GO-15643.017,
and HST-AR15797.001 as well as XSEDE grant TG-AST180036. CAM acknowledges support
by NASA Headquarters through the NASA Hubble Fellowship grant HST-HF2-51413.001-A.
PRS was supported in part by U.S. NSF grant AST-1009799, NASA grant NNX11AE09G,
and supercomputer resources from NSF XSEDE grant TG AST090005 and the Texas Advanced
Computing Center (TACC) at The University of Texas at Austin. JM acknowledges a
Zwicky Prize Fellowship from ETH Zurich. GY acknowledges financial support by MICIU/FEDER
under project grant PGC2018-094975-C21. SEIB acknowledges funding from the European
Research Council (ERC) under the European Union’s Horizon 2020 research and innovation
programme (grant agreement No. 669253). ITI was supported by the Science and Technology
Facilities Council [grants ST/I000976/1, ST/F002858/1, ST/P000525/1, and ST/T000473/1];
and The Southeast Physics Network (SEPNet). KA was supported by NRF2016R1D1A1B04935414
and NRF-2016R1A5A1013277. KA also appreciates APCTP for its hospitality during completion
of this work. PO acknowledges support from the French ANR funded project ORAGE (ANR-14-CE33-0016).
ND and DA acknowledge funding from the French ANR for project ANR-12-JS05- 0001
(EMMA). The CoDa II simulation was performed at Oak Ridge National Laboratory/Oak
Ridge Leadership Computing Facility on the Titan supercomputer (INCITE 2016 award
AST031). Processing was performed on the Eos and Rhea clusters. Resolution study
simulations were performed on Piz Daint at the Swiss National Supercomputing Center
(PRACE Tier 0 award, project id pr37). The authors would like to acknowledge the
High Performance Computing center of the University of Strasbourg for supporting
this work by providing scientific support and access to computing resources. Part
of the computing resources were funded by the Equipex EquipMeso project (Programme
Investissements d’Avenir) and the CPER Alsacalcul/Big Data.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Max
full_name: Gronke, Max
last_name: Gronke
- first_name: Pierre
full_name: Ocvirk, Pierre
last_name: Ocvirk
- first_name: Charlotte
full_name: Mason, Charlotte
last_name: Mason
- 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: Sarah E I
full_name: Bosman, Sarah E I
last_name: Bosman
- first_name: Jenny G
full_name: Sorce, Jenny G
last_name: Sorce
- first_name: Joseph
full_name: Lewis, Joseph
last_name: Lewis
- first_name: Kyungjin
full_name: Ahn, Kyungjin
last_name: Ahn
- first_name: Dominique
full_name: Aubert, Dominique
last_name: Aubert
- first_name: Taha
full_name: Dawoodbhoy, Taha
last_name: Dawoodbhoy
- first_name: Ilian T
full_name: Iliev, Ilian T
last_name: Iliev
- first_name: Paul R
full_name: Shapiro, Paul R
last_name: Shapiro
- first_name: Gustavo
full_name: Yepes, Gustavo
last_name: Yepes
citation:
ama: Gronke M, Ocvirk P, Mason C, et al. Lyman-α transmission properties of the
intergalactic medium in the CoDaII simulation. Monthly Notices of the Royal
Astronomical Society. 2021;508(3):3697-3709. doi:10.1093/mnras/stab2762
apa: Gronke, M., Ocvirk, P., Mason, C., Matthee, J. J., Bosman, S. E. I., Sorce,
J. G., … Yepes, G. (2021). Lyman-α transmission properties of the intergalactic
medium in the CoDaII simulation. Monthly Notices of the Royal Astronomical
Society. Oxford University Press. https://doi.org/10.1093/mnras/stab2762
chicago: Gronke, Max, Pierre Ocvirk, Charlotte Mason, Jorryt J Matthee, Sarah E
I Bosman, Jenny G Sorce, Joseph Lewis, et al. “Lyman-α Transmission Properties
of the Intergalactic Medium in the CoDaII Simulation.” Monthly Notices of the
Royal Astronomical Society. Oxford University Press, 2021. https://doi.org/10.1093/mnras/stab2762.
ieee: M. Gronke et al., “Lyman-α transmission properties of the intergalactic
medium in the CoDaII simulation,” Monthly Notices of the Royal Astronomical
Society, vol. 508, no. 3. Oxford University Press, pp. 3697–3709, 2021.
ista: Gronke M, Ocvirk P, Mason C, Matthee JJ, Bosman SEI, Sorce JG, Lewis J, Ahn
K, Aubert D, Dawoodbhoy T, Iliev IT, Shapiro PR, Yepes G. 2021. Lyman-α transmission
properties of the intergalactic medium in the CoDaII simulation. Monthly Notices
of the Royal Astronomical Society. 508(3), 3697–3709.
mla: Gronke, Max, et al. “Lyman-α Transmission Properties of the Intergalactic Medium
in the CoDaII Simulation.” Monthly Notices of the Royal Astronomical Society,
vol. 508, no. 3, Oxford University Press, 2021, pp. 3697–709, doi:10.1093/mnras/stab2762.
short: M. Gronke, P. Ocvirk, C. Mason, J.J. Matthee, S.E.I. Bosman, J.G. Sorce,
J. Lewis, K. Ahn, D. Aubert, T. Dawoodbhoy, I.T. Iliev, P.R. Shapiro, G. Yepes,
Monthly Notices of the Royal Astronomical Society 508 (2021) 3697–3709.
date_created: 2022-07-07T09:30:21Z
date_published: 2021-12-01T00:00:00Z
date_updated: 2022-08-18T10:45:56Z
day: '01'
doi: 10.1093/mnras/stab2762
extern: '1'
external_id:
arxiv:
- '2004.14496'
intvolume: ' 508'
issue: '3'
keyword:
- dark ages
- reionization
- first stars
- intergalactic medium
- 'galaxies: formation'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2004.14496
month: '12'
oa: 1
oa_version: Preprint
page: 3697-3709
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: Lyman-α transmission properties of the intergalactic medium in the CoDaII simulation
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 508
year: '2021'
...
---
_id: '11523'
abstract:
- lang: eng
text: We present the first results from the X-SHOOTER Lyman α survey at z = 2 (XLS-z2).
XLS-z2 is a deep spectroscopic survey of 35 Lyman α emitters (LAEs) utilizing
≈90 h of exposure time with Very Large Telescope/X-SHOOTER and covers rest-frame
Ly α to H α emission with R ≈ 4000. We present the sample selection, the observations,
and the data reduction. Systemic redshifts are measured from rest-frame optical
lines for 33/35 sources. In the stacked spectrum, our LAEs are characterized by
an interstellar medium with little dust, a low metallicity, and a high ionization
state. The ionizing sources are young hot stars that power strong emission lines
in the optical and high-ionization lines in the ultraviolet (UV). The LAEs exhibit
clumpy UV morphologies and have outflowing kinematics with blueshifted Si II absorption,
a broad [O III] component, and a red-skewed Ly α line. Typically, 30 per cent
of the Ly α photons escape, of which one quarter on the blue side of the systemic
velocity. A fraction of Ly α photons escape directly at the systemic suggesting
clear channels enabling an ≈10 per cent escape of ionizing photons, consistent
with an inference based on Mg II. A combination of a low effective H I column
density, a low dust content, and young starburst determines whether a star-forming
galaxy is observed as an LAE. The first is possibly related to outflows and/or
a fortunate viewing angle, while we find that the latter two in LAEs are typical
for their stellar mass of 109 M⊙.
acknowledgement: "We thank the referee for constructive comments and suggestions.
We thank Dawn Erb, Ruari Mackenzie, Ivan Oteo, Ryan Sanders, and Johannes Zabl for
useful discussions and suggestions. It is a pleasure to thank the ESO User Support,
in particular Giacomo Beccari, Carlo Manara, John Pritchard, Marina Rejkuba, and
Lowell Tacconi-Garman for assistance in the preparation and execution of the observations.
Based on observations obtained with the VLT, programs 084.A-0303, 088.A-0672, 091.A-0413,
091.A-0546, 092.A0774, 097.A-0153, 098.A-0819, 099.A-0758, 099.A-0254, 101.B0779,
and 102.A-0652. Based on data products from observations made with ESO Telescopes
at the La Silla Paranal Observatory under ESO programme ID 179.A-2005 and on data
products produced by CALET and the Cambridge Astronomy Survey Unit on behalf of
the UltraVISTA consortium. Based on observations made with the NASA/ESA HST through
programs 9133, 9367, 11694, and 12471, and obtained from the Hubble Legacy Archive,
which is a collaboration between the Space Telescope Science Institute (STScI/NASA),
the Space Telescope European Coordinating Facility (ST-ECF/ESA), and the Canadian
Astronomy Data Centre (CADC/NRC/CSA). This work is based on observations taken by
the CANDELS Multi-Cycle Treasury Program with the NASA/ESA HST, which is operated
by the Association of Universities for Research in Astronomy, Inc., under NASA contract
NAS5-26555. MG was supported by NASA through the NASA Hubble Fellowship grant HST-HF2-51409
and acknowledges support from HST grants\r\nHST-GO-15643.017-A, HST-AR-15039.003-A,
and XSEDE grant TG-AST180036. GP acknowledges support from the Netherlands Research
School for Astronomy (NOVA). RA acknowledges the support of ANID FONDECYT Regular
Grant 1202007. We gratefully acknowledge the PYTHON programming language, its NUMPY,
MATPLOTLIB, SCIPY, LMFIT (Jones et al. 2001; Hunter 2007; van der Walt, Colbert
& Varoquaux 2011), PANDAS (McKinney 2010), and ASTROPY (Astropy Collaboration 2013)
packages, and the TOPCAT analysis tool (Taylor 2013). Dedicated to the memory of
A. C. J.Matthee (1953–2020)."
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Jorryt J
full_name: Matthee, Jorryt J
id: 7439a258-f3c0-11ec-9501-9df22fe06720
last_name: Matthee
orcid: 0000-0003-2871-127X
- first_name: David
full_name: Sobral, David
last_name: Sobral
- first_name: Matthew
full_name: Hayes, Matthew
last_name: Hayes
- first_name: Gabriele
full_name: Pezzulli, Gabriele
last_name: Pezzulli
- first_name: Max
full_name: Gronke, Max
last_name: Gronke
- first_name: Daniel
full_name: Schaerer, Daniel
last_name: Schaerer
- first_name: Rohan P
full_name: Naidu, Rohan P
last_name: Naidu
- first_name: Huub
full_name: Röttgering, Huub
last_name: Röttgering
- first_name: João
full_name: Calhau, João
last_name: Calhau
- first_name: Ana
full_name: Paulino-Afonso, Ana
last_name: Paulino-Afonso
- first_name: Sérgio
full_name: Santos, Sérgio
last_name: Santos
- first_name: Ricardo
full_name: Amorín, Ricardo
last_name: Amorín
citation:
ama: 'Matthee JJ, Sobral D, Hayes M, et al. The X-SHOOTER Lyman α survey at z =
2 (XLS-z2) I: What makes a galaxy a Lyman α emitter? Monthly Notices of the
Royal Astronomical Society. 2021;505(1):1382-1412. doi:10.1093/mnras/stab1304'
apa: 'Matthee, J. J., Sobral, D., Hayes, M., Pezzulli, G., Gronke, M., Schaerer,
D., … Amorín, R. (2021). The X-SHOOTER Lyman α survey at z = 2 (XLS-z2) I: What
makes a galaxy a Lyman α emitter? Monthly Notices of the Royal Astronomical
Society. Oxford University Press. https://doi.org/10.1093/mnras/stab1304'
chicago: 'Matthee, Jorryt J, David Sobral, Matthew Hayes, Gabriele Pezzulli, Max
Gronke, Daniel Schaerer, Rohan P Naidu, et al. “The X-SHOOTER Lyman α Survey at
z = 2 (XLS-Z2) I: What Makes a Galaxy a Lyman α Emitter?” Monthly Notices of
the Royal Astronomical Society. Oxford University Press, 2021. https://doi.org/10.1093/mnras/stab1304.'
ieee: 'J. J. Matthee et al., “The X-SHOOTER Lyman α survey at z = 2 (XLS-z2)
I: What makes a galaxy a Lyman α emitter?,” Monthly Notices of the Royal Astronomical
Society, vol. 505, no. 1. Oxford University Press, pp. 1382–1412, 2021.'
ista: 'Matthee JJ, Sobral D, Hayes M, Pezzulli G, Gronke M, Schaerer D, Naidu RP,
Röttgering H, Calhau J, Paulino-Afonso A, Santos S, Amorín R. 2021. The X-SHOOTER
Lyman α survey at z = 2 (XLS-z2) I: What makes a galaxy a Lyman α emitter? Monthly
Notices of the Royal Astronomical Society. 505(1), 1382–1412.'
mla: 'Matthee, Jorryt J., et al. “The X-SHOOTER Lyman α Survey at z = 2 (XLS-Z2)
I: What Makes a Galaxy a Lyman α Emitter?” Monthly Notices of the Royal Astronomical
Society, vol. 505, no. 1, Oxford University Press, 2021, pp. 1382–412, doi:10.1093/mnras/stab1304.'
short: J.J. Matthee, D. Sobral, M. Hayes, G. Pezzulli, M. Gronke, D. Schaerer, R.P.
Naidu, H. Röttgering, J. Calhau, A. Paulino-Afonso, S. Santos, R. Amorín, Monthly
Notices of the Royal Astronomical Society 505 (2021) 1382–1412.
date_created: 2022-07-07T09:33:39Z
date_published: 2021-07-01T00:00:00Z
date_updated: 2024-10-14T11:32:39Z
day: '01'
doi: 10.1093/mnras/stab1304
extern: '1'
external_id:
arxiv:
- '2102.07779'
intvolume: ' 505'
issue: '1'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
- 'galaxies: formation'
- 'galaxies: ISM'
- 'galaxies: starburst'
- dark ages
- reionization
- first stars
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2102.07779
month: '07'
oa: 1
oa_version: Preprint
page: 1382-1412
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 X-SHOOTER Lyman α survey at z = 2 (XLS-z2) I: What makes a galaxy a Lyman
α emitter?'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 505
year: '2021'
...
---
_id: '11524'
abstract:
- lang: eng
text: We measure the evolution of the rest-frame UV luminosity function (LF) and
the stellar mass function (SMF) of Lyman-α (Ly α) emitters (LAEs) from z ∼ 2 to
z ∼ 6 by exploring ∼4000 LAEs from the SC4K sample. We find a correlation between
Ly α luminosity (LLy α) and rest-frame UV (MUV), with best fit MUV=−1.6+0.2−0.3log10(LLyα/ergs−1)+47+12−11
and a shallower relation between LLy α and stellar mass (M⋆), with best fit log10(M⋆/M⊙)=0.9+0.1−0.1log10(LLyα/ergs−1)−28+4.0−3.8.
An increasing LLy α cut predominantly lowers the number density of faint MUV and
low M⋆ LAEs. We estimate a proxy for the full UV LFs and SMFs of LAEs with simple
assumptions of the faint end slope. For the UV LF, we find a brightening of the
characteristic UV luminosity (M∗UV) with increasing redshift and a decrease of
the characteristic number density (Φ*). For the SMF, we measure a characteristic
stellar mass (M∗⋆/M⊙) increase with increasing redshift, and a Φ* decline. However,
if we apply a uniform luminosity cut of log10(LLyα/ergs−1)≥43.0, we find much
milder to no evolution in the UV and SMF of LAEs. The UV luminosity density (ρUV)
of the full sample of LAEs shows moderate evolution and the stellar mass density
(ρM) decreases, with both being always lower than the total ρUV and ρM of more
typical galaxies but slowly approaching them with increasing redshift. Overall,
our results indicate that both ρUV and ρM of LAEs slowly approach the measurements
of continuum-selected galaxies at z > 6, which suggests a key role of LAEs in
the epoch of reionization.
acknowledgement: This research made use of Astropy, a community developed core Python
package for Astronomy (Astropy Collaboration et al. 2013). topcat, a graphical tool
for manipulating tabular data, was also utilized in this analysis (Taylor 2005).
SG would like to thank Nastasha Wijers for the discussion on the column density
distribution in EAGLE. SC gratefully acknowledges support from Swiss National Science
Foundation grants PP00P2 163824 and PP00P2 190092, and from the European Research
Council (ERC) under the European Union’s Horizon 2020 research and innovation programme
grant agreement No 864361. GP acknowledges support from the Swiss National Science
Foundation (SNF) and from the Netherlands Research School for Astronomy (NOVA).
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: S
full_name: Santos, S
last_name: Santos
- first_name: D
full_name: Sobral, D
last_name: Sobral
- first_name: J
full_name: Butterworth, J
last_name: Butterworth
- first_name: A
full_name: Paulino-Afonso, A
last_name: Paulino-Afonso
- first_name: B
full_name: Ribeiro, B
last_name: Ribeiro
- first_name: E
full_name: da Cunha, E
last_name: da Cunha
- first_name: J
full_name: Calhau, J
last_name: Calhau
- first_name: A A
full_name: Khostovan, A A
last_name: Khostovan
- 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: P
full_name: Arrabal Haro, P
last_name: Arrabal Haro
citation:
ama: Santos S, Sobral D, Butterworth J, et al. The evolution of the UV luminosity
and stellar mass functions of Lyman-α emitters from z ∼ 2 to z ∼ 6. Monthly
Notices of the Royal Astronomical Society. 2021;505(1):1117-1134. doi:10.1093/mnras/stab1218
apa: Santos, S., Sobral, D., Butterworth, J., Paulino-Afonso, A., Ribeiro, B., da Cunha,
E., … Arrabal Haro, P. (2021). The evolution of the UV luminosity and stellar
mass functions of Lyman-α emitters from z ∼ 2 to z ∼ 6. Monthly Notices of
the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stab1218
chicago: Santos, S, D Sobral, J Butterworth, A Paulino-Afonso, B Ribeiro, E da Cunha,
J Calhau, A A Khostovan, Jorryt J Matthee, and P Arrabal Haro. “The Evolution
of the UV Luminosity and Stellar Mass Functions of Lyman-α Emitters from z ∼ 2
to z ∼ 6.” Monthly Notices of the Royal Astronomical Society. Oxford University
Press, 2021. https://doi.org/10.1093/mnras/stab1218.
ieee: S. Santos et al., “The evolution of the UV luminosity and stellar mass
functions of Lyman-α emitters from z ∼ 2 to z ∼ 6,” Monthly Notices of the
Royal Astronomical Society, vol. 505, no. 1. Oxford University Press, pp.
1117–1134, 2021.
ista: Santos S, Sobral D, Butterworth J, Paulino-Afonso A, Ribeiro B, da Cunha E,
Calhau J, Khostovan AA, Matthee JJ, Arrabal Haro P. 2021. The evolution of the
UV luminosity and stellar mass functions of Lyman-α emitters from z ∼ 2 to z ∼
6. Monthly Notices of the Royal Astronomical Society. 505(1), 1117–1134.
mla: Santos, S., et al. “The Evolution of the UV Luminosity and Stellar Mass Functions
of Lyman-α Emitters from z ∼ 2 to z ∼ 6.” Monthly Notices of the Royal Astronomical
Society, vol. 505, no. 1, Oxford University Press, 2021, pp. 1117–34, doi:10.1093/mnras/stab1218.
short: S. Santos, D. Sobral, J. Butterworth, A. Paulino-Afonso, B. Ribeiro, E. da Cunha,
J. Calhau, A.A. Khostovan, J.J. Matthee, P. Arrabal Haro, Monthly Notices of the
Royal Astronomical Society 505 (2021) 1117–1134.
date_created: 2022-07-07T10:02:59Z
date_published: 2021-07-01T00:00:00Z
date_updated: 2022-08-18T10:51:47Z
day: '01'
doi: 10.1093/mnras/stab1218
extern: '1'
external_id:
arxiv:
- '2105.00007'
intvolume: ' 505'
issue: '1'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
- 'galaxies: evolution'
- 'galaxies: high-redshift'
- 'galaxies: luminosity function'
- mass function
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2105.00007
month: '07'
oa: 1
oa_version: Preprint
page: 1117-1134
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 evolution of the UV luminosity and stellar mass functions of Lyman-α emitters
from z ∼ 2 to z ∼ 6
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 505
year: '2021'
...
---
_id: '11525'
abstract:
- lang: eng
text: The intensity of the Cosmic UV background (UVB), coming from all sources of
ionizing photons such as star-forming galaxies and quasars, determines the thermal
evolution and ionization state of the intergalactic medium (IGM) and is, therefore,
a critical ingredient for models of cosmic structure formation. Most of the previous
estimates are based on the comparison between observed and simulated Lyman-α forest.
We present the results of an independent method to constrain the product of the
UVB photoionization rate and the covering fraction of Lyman limit systems (LLSs)
by searching for the fluorescent Lyman-α emission produced by self-shielded clouds.
Because the expected surface brightness is well below current sensitivity limits
for direct imaging, we developed a new method based on 3D stacking of the IGM
around Lyman-α emitting galaxies (LAEs) between 2.9 < z < 6.6 using deep MUSE
observations. Combining our results with covering fractions of LLSs obtained from
mock cubes extracted from the EAGLE simulation, we obtain new and independent
constraints on the UVB at z > 3 that are consistent with previous measurements,
with a preference for relatively low UVB intensities at z = 3, and which suggest
a non-monotonic decrease of ΓH I with increasing redshift between 3 < z < 5. This
could suggest a possible tension between some UVB models and current observations
which however require deeper and wider observations in Lyman-α emission and absorption
to be confirmed. Assuming instead a value of UVB from current models, our results
constrain the covering fraction of LLSs at 3 < z < 4.5 to be less than 25 per cent
within 150 kpc from LAEs.
acknowledgement: This research made use of Astropy, a community developed core Python
package for Astronomy (Astropy Collaboration et al. 2013). topcat, a graphical tool
for manipulating tabular data, was also utilized in this analysis (Taylor 2005).
SG would like to thank Nastasha Wijers for the discussion on the column density
distribution in EAGLE. SC gratefully acknowledges support from Swiss National Science
Foundation grants PP00P2 163824 and PP00P2 190092, and from the European Research
Council (ERC) under the European Union’s Horizon 2020 research and innovation programme
grant agreement No 864361. GP acknowledges support from the Swiss National Science
Foundation (SNF) and from the Netherlands Research School for Astronomy (NOVA).
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Sofia G
full_name: Gallego, Sofia G
last_name: Gallego
- first_name: Sebastiano
full_name: Cantalupo, Sebastiano
last_name: Cantalupo
- first_name: Saeed
full_name: Sarpas, Saeed
last_name: Sarpas
- first_name: Bastien
full_name: Duboeuf, Bastien
last_name: Duboeuf
- first_name: Simon
full_name: Lilly, Simon
last_name: Lilly
- first_name: Gabriele
full_name: Pezzulli, Gabriele
last_name: Pezzulli
- first_name: Raffaella Anna
full_name: Marino, Raffaella Anna
last_name: Marino
- 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: Lutz
full_name: Wisotzki, Lutz
last_name: Wisotzki
- first_name: Joop
full_name: Schaye, Joop
last_name: Schaye
- first_name: Johan
full_name: Richard, Johan
last_name: Richard
- first_name: Haruka
full_name: Kusakabe, Haruka
last_name: Kusakabe
- first_name: Valentin
full_name: Mauerhofer, Valentin
last_name: Mauerhofer
citation:
ama: Gallego SG, Cantalupo S, Sarpas S, et al. Constraining the cosmic UV background
at z > 3 with MUSE Lyman-α emission observations. Monthly Notices of the
Royal Astronomical Society. 2021;504(1):16-32. doi:10.1093/mnras/stab796
apa: Gallego, S. G., Cantalupo, S., Sarpas, S., Duboeuf, B., Lilly, S., Pezzulli,
G., … Mauerhofer, V. (2021). Constraining the cosmic UV background at z >
3 with MUSE Lyman-α emission observations. Monthly Notices of the Royal Astronomical
Society. Oxford University Press. https://doi.org/10.1093/mnras/stab796
chicago: Gallego, Sofia G, Sebastiano Cantalupo, Saeed Sarpas, Bastien Duboeuf,
Simon Lilly, Gabriele Pezzulli, Raffaella Anna Marino, et al. “Constraining the
Cosmic UV Background at z > 3 with MUSE Lyman-α Emission Observations.” Monthly
Notices of the Royal Astronomical Society. Oxford University Press, 2021.
https://doi.org/10.1093/mnras/stab796.
ieee: S. G. Gallego et al., “Constraining the cosmic UV background at z >
3 with MUSE Lyman-α emission observations,” Monthly Notices of the Royal Astronomical
Society, vol. 504, no. 1. Oxford University Press, pp. 16–32, 2021.
ista: Gallego SG, Cantalupo S, Sarpas S, Duboeuf B, Lilly S, Pezzulli G, Marino
RA, Matthee JJ, Wisotzki L, Schaye J, Richard J, Kusakabe H, Mauerhofer V. 2021.
Constraining the cosmic UV background at z > 3 with MUSE Lyman-α emission
observations. Monthly Notices of the Royal Astronomical Society. 504(1), 16–32.
mla: Gallego, Sofia G., et al. “Constraining the Cosmic UV Background at z >
3 with MUSE Lyman-α Emission Observations.” Monthly Notices of the Royal Astronomical
Society, vol. 504, no. 1, Oxford University Press, 2021, pp. 16–32, doi:10.1093/mnras/stab796.
short: S.G. Gallego, S. Cantalupo, S. Sarpas, B. Duboeuf, S. Lilly, G. Pezzulli,
R.A. Marino, J.J. Matthee, L. Wisotzki, J. Schaye, J. Richard, H. Kusakabe, V.
Mauerhofer, Monthly Notices of the Royal Astronomical Society 504 (2021) 16–32.
date_created: 2022-07-07T10:07:11Z
date_published: 2021-06-01T00:00:00Z
date_updated: 2022-08-18T10:54:19Z
day: '01'
doi: 10.1093/mnras/stab796
extern: '1'
external_id:
arxiv:
- '2103.09250'
intvolume: ' 504'
issue: '1'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2103.09250
month: '06'
oa: 1
oa_version: Preprint
page: 16-32
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: Constraining the cosmic UV background at z > 3 with MUSE Lyman-α emission observations
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 504
year: '2021'
...
---
_id: '11526'
abstract:
- lang: eng
text: We present the results from a MUSE survey of twelve z ≃ 3.15 quasars, which
were selected to be much fainter (20 < iSDSS < 23) than in previous studies of
giant Ly α nebulae around the brightest quasars (16.6 < iAB < 18.7). We detect
H I Ly α nebulae around 100 per cent of our target quasars, with emission extending
to scales of at least 60 physical kpc, and up to 190 pkpc. We explore correlations
between properties of the nebulae and their host quasars, with the goal of connecting
variations in the properties of the illuminating QSO to the response in nebular
emission. We show that the surface brightness profiles of the nebulae are similar
to those of nebulae around bright quasars, but with a lower normalization. Our
targeted quasars are on average 3.7 mag (≃30 times) fainter in UV continuum than
our bright reference sample, and yet the nebulae around them are only 4.3 times
fainter in mean Ly α surface brightness, measured between 20 and 50 pkpc. We find
significant correlations between the surface brightness of the nebula and the
luminosity of the quasar in both UV continuum and Ly α. The latter can be interpreted
as evidence for a substantial contribution from unresolved inner parts of the
nebulae to the narrow components seen in the Ly α lines of some of our faint quasars,
possibly from the inner circumgalactic medium or from the host galaxy’s interstellar
medium.
acknowledgement: The authors thank Daichi Kashino, for providing access to unpublished
zCOSMOS Deep data, and Jakob S. den Brok for sharing code used in den Brok et al.
(2020). GP and SC acknowledge the support of the Swiss National Science Foundation
[grant PP00P2163824]. SM is supported by the Experienced Researchers Fellowship,
Alexander von Humboldt-Stiftung, Germany. This work is based on observations collected
at the European Organisation for Astronomical Research in the Southern Hemisphere
under the MUSE GTO programme. The major analysis and production of figures in this
work was conducted in Python, using standard libraries which include NumPy (Harris
et al. 2020), SciPy (Virtanen et al. 2020), Matplotlib (Hunter 2007) and the interactive
command shell IPython (Pérez & Granger 2007). This research also made use of Astropy,
a community-developed core Python package for Astronomy (Astropy Collaboration et
al. 2013), and Photutils, an Astropy package for detection and photometry of astronomica
sources (Bradley et al. 2019). The python interface dustmaps (Green 2018) was used
to query galactic extinction maps. topcat, a graphical tool for manipulating tabular
data, was also utilized in this analysis (Taylor 2005). This research has made use
of the "Aladin sky atlas" developed at CDS, Strasbourg Observatory, France (Bonnarel
et al. 2000).
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Ruari
full_name: Mackenzie, Ruari
last_name: Mackenzie
- first_name: Gabriele
full_name: Pezzulli, Gabriele
last_name: Pezzulli
- first_name: Sebastiano
full_name: Cantalupo, Sebastiano
last_name: Cantalupo
- first_name: Raffaella A
full_name: Marino, Raffaella A
last_name: Marino
- first_name: Simon
full_name: Lilly, Simon
last_name: Lilly
- first_name: Sowgat
full_name: Muzahid, Sowgat
last_name: Muzahid
- 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: Joop
full_name: Schaye, Joop
last_name: Schaye
- first_name: Lutz
full_name: Wisotzki, Lutz
last_name: Wisotzki
citation:
ama: Mackenzie R, Pezzulli G, Cantalupo S, et al. Revealing the impact of quasar
luminosity on giant Lyα nebulae. Monthly Notices of the Royal Astronomical
Society. 2021;502(1):494-509. doi:10.1093/mnras/staa3277
apa: Mackenzie, R., Pezzulli, G., Cantalupo, S., Marino, R. A., Lilly, S., Muzahid,
S., … Wisotzki, L. (2021). Revealing the impact of quasar luminosity on giant
Lyα nebulae. Monthly Notices of the Royal Astronomical Society. Oxford
University Press. https://doi.org/10.1093/mnras/staa3277
chicago: Mackenzie, Ruari, Gabriele Pezzulli, Sebastiano Cantalupo, Raffaella A
Marino, Simon Lilly, Sowgat Muzahid, Jorryt J Matthee, Joop Schaye, and Lutz Wisotzki.
“Revealing the Impact of Quasar Luminosity on Giant Lyα Nebulae.” Monthly Notices
of the Royal Astronomical Society. Oxford University Press, 2021. https://doi.org/10.1093/mnras/staa3277.
ieee: R. Mackenzie et al., “Revealing the impact of quasar luminosity on
giant Lyα nebulae,” Monthly Notices of the Royal Astronomical Society,
vol. 502, no. 1. Oxford University Press, pp. 494–509, 2021.
ista: Mackenzie R, Pezzulli G, Cantalupo S, Marino RA, Lilly S, Muzahid S, Matthee
JJ, Schaye J, Wisotzki L. 2021. Revealing the impact of quasar luminosity on giant
Lyα nebulae. Monthly Notices of the Royal Astronomical Society. 502(1), 494–509.
mla: Mackenzie, Ruari, et al. “Revealing the Impact of Quasar Luminosity on Giant
Lyα Nebulae.” Monthly Notices of the Royal Astronomical Society, vol. 502,
no. 1, Oxford University Press, 2021, pp. 494–509, doi:10.1093/mnras/staa3277.
short: R. Mackenzie, G. Pezzulli, S. Cantalupo, R.A. Marino, S. Lilly, S. Muzahid,
J.J. Matthee, J. Schaye, L. Wisotzki, Monthly Notices of the Royal Astronomical
Society 502 (2021) 494–509.
date_created: 2022-07-07T10:11:15Z
date_published: 2021-03-01T00:00:00Z
date_updated: 2022-08-18T10:56:28Z
day: '01'
doi: 10.1093/mnras/staa3277
extern: '1'
external_id:
arxiv:
- '2010.12589'
intvolume: ' 502'
issue: '1'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
- 'techniques: imaging spectroscopy'
- intergalactic medium
- 'quasars: emission lines'
- 'quasars: general'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2010.12589
month: '03'
oa: 1
oa_version: Preprint
page: 494-509
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: Revealing the impact of quasar luminosity on giant Lyα nebulae
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 502
year: '2021'
...
---
_id: '17516'
abstract:
- lang: eng
text: We study the effect of baryonic processes on weak lensing (WL) observables
with a suite of mock WL maps, the κTNG, based on the cosmological hydrodynamic
simulations IllustrisTNG. We quantify the baryonic effects on the WL angular power
spectrum, one-point probability distribution function (PDF), and number counts
of peaks and minima. We also show the redshift evolution of the effects, which
is a key to distinguish the effect of baryons from fundamental physics such as
dark energy, dark matter, and massive neutrinos. We find that baryonic processes
reduce the small-scale power, suppress the tails of the PDF, peak and minimum
counts, and change the total number of peaks and minima. We compare our results
to existing semi-analytical models and hydrodynamic simulations, and discuss the
source of discrepancies. The κTNG suite includes 10 000 realizations of $5 \times
5 \, \mathrm{deg}^2$ maps for 40 source redshifts up to zs = 2.6, well covering
the range of interest for existing and upcoming WL surveys. We also produce the
κTNG-Dark suite of maps, generated based on the corresponding dark matter-only
IllustrisTNG simulations. Our mock maps are not only suitable for developing analytical
models that incorporate the effect of baryons, but also particularly useful for
studies that rely on mass maps, such as non-Gaussian statistics and machine learning
with convolutional neural networks. The suite of mock maps is publicly available
at Columbia Lensing (http://columbialensing.org).
article_processing_charge: No
article_type: original
author:
- first_name: Ken
full_name: Osato, Ken
last_name: Osato
- first_name: Jia
full_name: Liu, Jia
last_name: Liu
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
citation:
ama: 'Osato K, Liu J, Haiman Z. κTNG: effect of baryonic processes on weak lensing
with IllustrisTNG simulations. Monthly Notices of the Royal Astronomical Society.
2021;502(4):5593-5602. doi:10.1093/mnras/stab395'
apa: 'Osato, K., Liu, J., & Haiman, Z. (2021). κTNG: effect of baryonic processes
on weak lensing with IllustrisTNG simulations. Monthly Notices of the Royal
Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stab395'
chicago: 'Osato, Ken, Jia Liu, and Zoltán Haiman. “ΚTNG: Effect of Baryonic Processes
on Weak Lensing with IllustrisTNG Simulations.” Monthly Notices of the Royal
Astronomical Society. Oxford University Press, 2021. https://doi.org/10.1093/mnras/stab395.'
ieee: 'K. Osato, J. Liu, and Z. Haiman, “κTNG: effect of baryonic processes on weak
lensing with IllustrisTNG simulations,” Monthly Notices of the Royal Astronomical
Society, vol. 502, no. 4. Oxford University Press, pp. 5593–5602, 2021.'
ista: 'Osato K, Liu J, Haiman Z. 2021. κTNG: effect of baryonic processes on weak
lensing with IllustrisTNG simulations. Monthly Notices of the Royal Astronomical
Society. 502(4), 5593–5602.'
mla: 'Osato, Ken, et al. “ΚTNG: Effect of Baryonic Processes on Weak Lensing with
IllustrisTNG Simulations.” Monthly Notices of the Royal Astronomical Society,
vol. 502, no. 4, Oxford University Press, 2021, pp. 5593–602, doi:10.1093/mnras/stab395.'
short: K. Osato, J. Liu, Z. Haiman, Monthly Notices of the Royal Astronomical Society
502 (2021) 5593–5602.
date_created: 2024-09-05T08:56:14Z
date_published: 2021-02-11T00:00:00Z
date_updated: 2024-09-10T13:53:06Z
day: '11'
doi: 10.1093/mnras/stab395
extern: '1'
intvolume: ' 502'
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/stab395
month: '02'
oa: 1
oa_version: Published Version
page: 5593-5602
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
- 1365-2966
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'κTNG: effect of baryonic processes on weak lensing with IllustrisTNG simulations'
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 502
year: '2021'
...
---
_id: '17574'
abstract:
- lang: eng
text: As weak lensing surveys are becoming deeper and cover larger areas, information
will be available on small angular scales down to the arcmin level. To extract
this extra information, accurate modelling of baryonic effects is necessary. In
this work, we adopt a baryonic correction model, which includes gas both bound
inside and ejected from dark matter (DM) haloes, a central galaxy, and changes
in the DM profile induced by baryons. We use this model to incorporate baryons
into a large suite of DM-only N-body simulations, covering a grid of 75 cosmologies
in the Ωm–σ8 parameter space. We investigate how baryons affect Gaussian and non-Gaussian
weak lensing statistics and the cosmological parameter inferences from these statistics.
Our results show that marginalizing over baryonic parameters degrades the constraints
in Ωm–σ8 space by a factor of 2–5 compared to those with baryonic parameters fixed.
We also find that combining the lensing power spectrum and peak counts can break
the degeneracy between cosmological and baryonic parameters and mitigate the impact
of the uncertainty in baryonic physics.
article_processing_charge: No
article_type: original
author:
- first_name: Tianhuan
full_name: Lu, Tianhuan
last_name: Lu
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
citation:
ama: Lu T, Haiman Z. The impact of baryons on cosmological inference from weak lensing
statistics. Monthly Notices of the Royal Astronomical Society. 2021;506(3):3406-3417.
doi:10.1093/mnras/stab1978
apa: Lu, T., & Haiman, Z. (2021). The impact of baryons on cosmological inference
from weak lensing statistics. Monthly Notices of the Royal Astronomical Society.
Oxford University Press. https://doi.org/10.1093/mnras/stab1978
chicago: Lu, Tianhuan, and Zoltán Haiman. “The Impact of Baryons on Cosmological
Inference from Weak Lensing Statistics.” Monthly Notices of the Royal Astronomical
Society. Oxford University Press, 2021. https://doi.org/10.1093/mnras/stab1978.
ieee: T. Lu and Z. Haiman, “The impact of baryons on cosmological inference from
weak lensing statistics,” Monthly Notices of the Royal Astronomical Society,
vol. 506, no. 3. Oxford University Press, pp. 3406–3417, 2021.
ista: Lu T, Haiman Z. 2021. The impact of baryons on cosmological inference from
weak lensing statistics. Monthly Notices of the Royal Astronomical Society. 506(3),
3406–3417.
mla: Lu, Tianhuan, and Zoltán Haiman. “The Impact of Baryons on Cosmological Inference
from Weak Lensing Statistics.” Monthly Notices of the Royal Astronomical Society,
vol. 506, no. 3, Oxford University Press, 2021, pp. 3406–17, doi:10.1093/mnras/stab1978.
short: T. Lu, Z. Haiman, Monthly Notices of the Royal Astronomical Society 506 (2021)
3406–3417.
date_created: 2024-09-05T12:17:24Z
date_published: 2021-07-10T00:00:00Z
date_updated: 2024-09-19T07:43:16Z
day: '10'
doi: 10.1093/mnras/stab1978
extern: '1'
intvolume: ' 506'
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/stab1978
month: '07'
oa: 1
oa_version: Published Version
page: 3406-3417
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
- 1365-2966
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: The impact of baryons on cosmological inference from weak lensing statistics
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 506
year: '2021'
...
---
_id: '17577'
abstract:
- lang: eng
text: 'The Legacy Survey of Space and Time (LSST) by the Vera C. Rubin Observatory
is expected to discover tens of millions of quasars. A significant fraction of
these could be powered by coalescing massive black hole (MBH) binaries, since
many quasars are believed to be triggered by mergers. We show that under plausible
assumptions about the luminosity functions, lifetimes, and binary fractions of
quasars, we expect the full LSST quasar catalogue to contain between 20 and 100
million compact MBH binaries with masses M = 105–9M⊙, redshifts z = 0–6, and orbital
periods P = 1–70 d. Their light-curves are expected to be distinctly periodic,
which can be confidently distinguished from stochastic red-noise variability,
because LSST will cover dozens, or even hundreds of cycles. A very small subset
of 10–150 ultracompact (P ≲ 1 d) binary quasars among these will, over ∼5–15 yr,
evolve into the mHz gravitational-wave frequency band and can be detected by LISA.
They can therefore be regarded as ‘LISA verification binaries’, analogous to short-period
Galactic compact-object binaries. The practical question is how to find these
handful of ‘needles in the haystack’ among the large number of quasars: this will
likely require a tailored co-adding analysis optimized for this purpose.'
article_processing_charge: No
article_type: original
author:
- first_name: Chengcheng
full_name: Xin, Chengcheng
last_name: Xin
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
citation:
ama: Xin C, Haiman Z. Ultra-short-period massive black hole binary candidates in
LSST as LISA ‘verification binaries.’ Monthly Notices of the Royal Astronomical
Society. 2021;506(2):2408-2417. doi:10.1093/mnras/stab1856
apa: Xin, C., & Haiman, Z. (2021). Ultra-short-period massive black hole binary
candidates in LSST as LISA ‘verification binaries.’ Monthly Notices of the
Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stab1856
chicago: Xin, Chengcheng, and Zoltán Haiman. “Ultra-Short-Period Massive Black Hole
Binary Candidates in LSST as LISA ‘Verification Binaries.’” Monthly Notices
of the Royal Astronomical Society. Oxford University Press, 2021. https://doi.org/10.1093/mnras/stab1856.
ieee: C. Xin and Z. Haiman, “Ultra-short-period massive black hole binary candidates
in LSST as LISA ‘verification binaries,’” Monthly Notices of the Royal Astronomical
Society, vol. 506, no. 2. Oxford University Press, pp. 2408–2417, 2021.
ista: Xin C, Haiman Z. 2021. Ultra-short-period massive black hole binary candidates
in LSST as LISA ‘verification binaries’. Monthly Notices of the Royal Astronomical
Society. 506(2), 2408–2417.
mla: Xin, Chengcheng, and Zoltán Haiman. “Ultra-Short-Period Massive Black Hole
Binary Candidates in LSST as LISA ‘Verification Binaries.’” Monthly Notices
of the Royal Astronomical Society, vol. 506, no. 2, Oxford University Press,
2021, pp. 2408–17, doi:10.1093/mnras/stab1856.
short: C. Xin, Z. Haiman, Monthly Notices of the Royal Astronomical Society 506
(2021) 2408–2417.
date_created: 2024-09-05T12:19:58Z
date_published: 2021-07-05T00:00:00Z
date_updated: 2024-09-19T08:07:41Z
day: '05'
doi: 10.1093/mnras/stab1856
extern: '1'
intvolume: ' 506'
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/stab1856
month: '07'
oa: 1
oa_version: Published Version
page: 2408-2417
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
- 1365-2966
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Ultra-short-period massive black hole binary candidates in LSST as LISA ‘verification
binaries’
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 506
year: '2021'
...
---
_id: '17585'
abstract:
- lang: eng
text: Recent gravitational wave (GW) observations by LIGO/Virgo show evidence for
hierarchical mergers, where the merging BHs are the remnants of previous BH merger
events. These events may carry important clues about the astrophysical host environments
of the GW sources. In this paper, we present the distributions of the effective
spin parameter (χeff), the precession spin parameter (χp), and the chirp mass
(mchirp) expected in hierarchical mergers. Under a wide range of assumptions,
hierarchical mergers produce (i) a monotonic increase of the average of the typical
total spin for merging binaries, which we characterize with χ¯typ≡(χ2eff+χ2p)1/2¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯,
up to roughly the maximum mchirp among first-generation (1g) BHs, and (ii) a plateau
at χ¯typ∼0.6 at higher mchirp. We suggest that the maximum mass and typical spin
magnitudes for 1g BHs can be estimated from χ¯typ as a function of mchirp. The
GW data observed in LIGO/Virgo O1--O3a prefers an increase in χ¯typ at low mchirp,
which is consistent with the growth of the BH spin magnitude by hierarchical mergers,
at ∼2σ confidence. A Bayesian analysis suggests that 1g BHs have the maximum mass
of ∼15--30M⊙ if the majority of mergers are of high-generation BHs (not among
1g-1g BHs), which is consistent with mergers in active galactic nucleus disks
and/or nuclear star clusters, while if mergers mainly originate from globular
clusters, 1g BHs are favored to have non-zero spin magnitudes of ∼0.3. We also
forecast that signatures for hierarchical mergers in the χ¯typ distribution can
be confidently recovered once the number of GW events increases to ≳O(100).
article_processing_charge: No
article_type: original
author:
- 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
- first_name: Imre
full_name: Bartos, Imre
last_name: Bartos
- first_name: Bence
full_name: Kocsis, Bence
last_name: Kocsis
- first_name: Kazuyuki
full_name: Omukai, Kazuyuki
last_name: Omukai
citation:
ama: Tagawa H, Haiman Z, Bartos I, Kocsis B, Omukai K. Signatures of hierarchical
mergers in black hole spin and mass distribution. Monthly Notices of the Royal
Astronomical Society. 2021;507(3):3362-3380. doi:10.1093/mnras/stab2315
apa: Tagawa, H., Haiman, Z., Bartos, I., Kocsis, B., & Omukai, K. (2021). Signatures
of hierarchical mergers in black hole spin and mass distribution. Monthly Notices
of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stab2315
chicago: Tagawa, Hiromichi, Zoltán Haiman, Imre Bartos, Bence Kocsis, and Kazuyuki
Omukai. “Signatures of Hierarchical Mergers in Black Hole Spin and Mass Distribution.”
Monthly Notices of the Royal Astronomical Society. Oxford University Press,
2021. https://doi.org/10.1093/mnras/stab2315.
ieee: H. Tagawa, Z. Haiman, I. Bartos, B. Kocsis, and K. Omukai, “Signatures of
hierarchical mergers in black hole spin and mass distribution,” Monthly Notices
of the Royal Astronomical Society, vol. 507, no. 3. Oxford University Press,
pp. 3362–3380, 2021.
ista: Tagawa H, Haiman Z, Bartos I, Kocsis B, Omukai K. 2021. Signatures of hierarchical
mergers in black hole spin and mass distribution. Monthly Notices of the Royal
Astronomical Society. 507(3), 3362–3380.
mla: Tagawa, Hiromichi, et al. “Signatures of Hierarchical Mergers in Black Hole
Spin and Mass Distribution.” Monthly Notices of the Royal Astronomical Society,
vol. 507, no. 3, Oxford University Press, 2021, pp. 3362–80, doi:10.1093/mnras/stab2315.
short: H. Tagawa, Z. Haiman, I. Bartos, B. Kocsis, K. Omukai, Monthly Notices of
the Royal Astronomical Society 507 (2021) 3362–3380.
date_created: 2024-09-05T12:30:08Z
date_published: 2021-08-13T00:00:00Z
date_updated: 2024-09-19T11:50:46Z
day: '13'
doi: 10.1093/mnras/stab2315
extern: '1'
intvolume: ' 507'
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/stab2315
month: '08'
oa: 1
oa_version: Published Version
page: 3362-3380
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
- 1365-2966
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Signatures of hierarchical mergers in black hole spin and mass distribution
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 507
year: '2021'
...
---
_id: '17586'
abstract:
- lang: eng
text: Variable active galactic nuclei showing periodic light curves have been proposed
as massive black hole binary (MBHB) candidates. In such scenarios, the periodicity
can be due to relativistic Doppler-boosting of the emitted light. This hypothesis
can be tested through the timing of scattered polarized light. Following the results
of polarization studies in type I nuclei and of dynamical studies of MBHBs with
circumbinary discs, we assume a coplanar equatorial scattering ring, whose elements
contribute differently to the total polarized flux, due to different scattering
angles, levels of Doppler boost, and line-of-sight time delays. We find that in
the presence of an MBHB, both the degree of polarization and the polarization
position angle have periodic modulations. The polarization angle oscillates around
the semiminor axis of the projected MBHB orbital ellipse, with a frequency equal
either to the binary’s orbital frequency (for large scattering screen radii),
or twice this value (for smaller scattering structures). These distinctive features
can be used to probe the nature of periodic MBHB candidates and to compile catalogues
of the most promising sub-pc MBHBs. The identification of such polarization features
in gravitational-wave (GW) detected MBHBs would enormously increase the amount
of physical information about the sources, allowing the measurement of the individual
masses of the binary components, and the orientation of the line of nodes on the
sky, even for monochromatic GW signals.
article_processing_charge: No
article_type: original
author:
- first_name: Massimo
full_name: Dotti, Massimo
last_name: Dotti
- first_name: Matteo
full_name: Bonetti, Matteo
last_name: Bonetti
- first_name: Daniel J
full_name: D’Orazio, Daniel J
last_name: D’Orazio
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: Luis C
full_name: Ho, Luis C
last_name: Ho
citation:
ama: Dotti M, Bonetti M, D’Orazio DJ, Haiman Z, Ho LC. Binary black hole signatures
in polarized light curves. Monthly Notices of the Royal Astronomical Society.
2021;509(1):212-223. doi:10.1093/mnras/stab2893
apa: Dotti, M., Bonetti, M., D’Orazio, D. J., Haiman, Z., & Ho, L. C. (2021).
Binary black hole signatures in polarized light curves. Monthly Notices of
the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stab2893
chicago: Dotti, Massimo, Matteo Bonetti, Daniel J D’Orazio, Zoltán Haiman, and Luis
C Ho. “Binary Black Hole Signatures in Polarized Light Curves.” Monthly Notices
of the Royal Astronomical Society. Oxford University Press, 2021. https://doi.org/10.1093/mnras/stab2893.
ieee: M. Dotti, M. Bonetti, D. J. D’Orazio, Z. Haiman, and L. C. Ho, “Binary black
hole signatures in polarized light curves,” Monthly Notices of the Royal Astronomical
Society, vol. 509, no. 1. Oxford University Press, pp. 212–223, 2021.
ista: Dotti M, Bonetti M, D’Orazio DJ, Haiman Z, Ho LC. 2021. Binary black hole
signatures in polarized light curves. Monthly Notices of the Royal Astronomical
Society. 509(1), 212–223.
mla: Dotti, Massimo, et al. “Binary Black Hole Signatures in Polarized Light Curves.”
Monthly Notices of the Royal Astronomical Society, vol. 509, no. 1, Oxford
University Press, 2021, pp. 212–23, doi:10.1093/mnras/stab2893.
short: M. Dotti, M. Bonetti, D.J. D’Orazio, Z. Haiman, L.C. Ho, Monthly Notices
of the Royal Astronomical Society 509 (2021) 212–223.
date_created: 2024-09-05T12:32:01Z
date_published: 2021-10-07T00:00:00Z
date_updated: 2024-09-19T11:55:01Z
day: '07'
doi: 10.1093/mnras/stab2893
extern: '1'
intvolume: ' 509'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/stab2893
month: '10'
oa: 1
oa_version: Published Version
page: 212-223
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
- 1365-2966
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Binary black hole signatures in polarized light curves
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 509
year: '2021'
...
---
_id: '17610'
abstract:
- lang: eng
text: 'The presence of massive black holes (BHs) with masses of order 109M⊙, powering
bright quasars when the Universe was less than 1 Gyr old, poses strong constraints
on their formation mechanism. Several scenarios have been proposed to date to
explain massive BH formation, from the low-mass seed BH remnants of the first
generation of stars to the massive seed BHs resulting from the rapid collapse
of massive gas clouds. However, the plausibility of some of these scenarios to
occur within the progenitors of high-z quasars has not yet been thoroughly explored.
In this work, we investigate, by combining dark-matter only N-body simulations
with a semi-analytic framework, whether the conditions for the formation of massive
seed BHs from synchronised atomic-cooling halo pairs and/or dynamically-heated
mini-haloes are fulfilled in the overdense regions where the progenitors of a
typical high-redshift quasar host form and evolve. Our analysis shows that the
peculiar conditions in such regions, i.e. strong halo clustering and high star
formation rates, are crucial to produce a non-negligible number of massive seed
BH host candidates: we find ≈1400 dynamically heated metal-free mini-haloes, including
one of these which evolves to a synchronised pair and ends up in the massive quasar-host
halo by z=6. This demonstrates that the progenitors of high-redshift quasar host
haloes can harbour early massive seed BHs. Our results further suggest that multiple
massive seed BHs may form in or near the quasar host''s progenitors, potentially
merging at lower redshifts and yielding gravitational wave events.'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Alessandro
full_name: Lupi, Alessandro
last_name: Lupi
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: Marta
full_name: Volonteri, Marta
last_name: Volonteri
citation:
ama: Lupi A, Haiman Z, Volonteri M. Forming massive seed black holes in high-redshift
quasar host progenitors. Monthly Notices of the Royal Astronomical Society.
2021;503(4):5046-5060. doi:10.1093/mnras/stab692
apa: Lupi, A., Haiman, Z., & Volonteri, M. (2021). Forming massive seed black
holes in high-redshift quasar host progenitors. Monthly Notices of the Royal
Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stab692
chicago: Lupi, Alessandro, Zoltán Haiman, and Marta Volonteri. “Forming Massive
Seed Black Holes in High-Redshift Quasar Host Progenitors.” Monthly Notices
of the Royal Astronomical Society. Oxford University Press, 2021. https://doi.org/10.1093/mnras/stab692.
ieee: A. Lupi, Z. Haiman, and M. Volonteri, “Forming massive seed black holes in
high-redshift quasar host progenitors,” Monthly Notices of the Royal Astronomical
Society, vol. 503, no. 4. Oxford University Press, pp. 5046–5060, 2021.
ista: Lupi A, Haiman Z, Volonteri M. 2021. Forming massive seed black holes in high-redshift
quasar host progenitors. Monthly Notices of the Royal Astronomical Society. 503(4),
5046–5060.
mla: Lupi, Alessandro, et al. “Forming Massive Seed Black Holes in High-Redshift
Quasar Host Progenitors.” Monthly Notices of the Royal Astronomical Society,
vol. 503, no. 4, Oxford University Press, 2021, pp. 5046–60, doi:10.1093/mnras/stab692.
short: A. Lupi, Z. Haiman, M. Volonteri, Monthly Notices of the Royal Astronomical
Society 503 (2021) 5046–5060.
date_created: 2024-09-05T13:22:23Z
date_published: 2021-03-24T00:00:00Z
date_updated: 2024-09-23T14:49:49Z
day: '24'
doi: 10.1093/mnras/stab692
extern: '1'
external_id:
arxiv:
- '2102.05051'
intvolume: ' 503'
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.2102.05051'
month: '03'
oa: 1
oa_version: Preprint
page: 5046-5060
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
- 1365-2966
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Forming massive seed black holes in high-redshift quasar host progenitors
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 503
year: '2021'
...
---
_id: '11528'
abstract:
- lang: eng
text: Ly α emission lines are typically found to be redshifted with respect to the
systemic redshifts of galaxies, likely due to resonant scattering of Ly α photons.
Here, we measure the average velocity offset for a sample of 96 z ≈ 3.3 Ly α emitters
(LAEs) with a median Ly α flux (luminosity) of ≈10−17 erg cm−2 s−1 (≈1042 erg
s−1) and a median star formation rate (SFR) of ≈1.3 M⊙ yr−1 (not corrected for
possible dust extinction), detected by the Multi-Unit Spectroscopic Explorer as
part of our MUSEQuBES circumgalactic medium (CGM) survey. By postulating that
the stacked CGM absorption profiles of these LAEs, probed by eight background
quasars, must be centred on the systemic redshift, we measure an average velocity
offset, Voffset = 171\pm 8 km s−1, between the Ly α emission peak and the systemic
redshift. The observed Voffset is lower by factors of ≈1.4 and ≈2.6 compared to
the velocity offsets measured for narrow-band-selected LAEs and Lyman break galaxies,
respectively, which probe galaxies with higher masses and SFRs. Consistent with
earlier studies based on direct measurements for individual objects, we find that
the Voffset is correlated with the full width at half-maximum of the red peak
of the Ly α line, and anticorrelated with the rest-frame equivalent width. Moreover,
we find that Voffset is correlated with SFR with a sub-linear scaling relation,
Voffset∝SFR0.16±0.03. Adopting the mass scaling for main-sequence galaxies, such
a relation suggests that Voffset scales with the circular velocity of the dark
matter haloes hosting the LAEs.
acknowledgement: 'We thank the anonymous referee for useful suggestions. This study
is based on observations collected at the European Organisation for Astronomical
Research in the Southern Hemisphere under ESO programme(s): 094.A-0131(B), 095.A
0200(A), 096.A0222(A), 097.A-0089(A), and 099.A-0159(A). SM acknowledges support
from the Alexander von Humboldt Foundation, Germany. SM thanks Christian Herenz
for useful discussion. SC gratefully acknowledges support from Swiss National Science
Foundation grant PP00P2 163824. JB acknowledges support by FCT/MCTES through national
funds by grant UID/FIS/04434/2019 and through Investigador FCT Contract No. IF/01654/2014/CP1215/CT0003.
NB and JZ acknowledge support from ANR grant ANR-17-CE31- 0017 (3DGasFlows). AC
and JR acknowledge support from the ERC starting grant 336736-CALENDS. MA acknowledges
support from European Union’s H2020 Marie Skłodowska-Curie Actions grant 721463
to the SUNDIAL ITN, and from the Spanish Ministry of Economy and Competitiveness
(MINECO) under grant number AYA2016-76219-P. MA also acknowledges support from the
Fundacion BBVA under its 2017 programme of assistance to ´scientific research groups,
for the project ‘Using machine-learning techniques to drag galaxies from the noise
in deep imaging’. FL and AV acknowledge support from the ERC starting grant ERC757258-TRIPLE.'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Sowgat
full_name: Muzahid, Sowgat
last_name: Muzahid
- first_name: Joop
full_name: Schaye, Joop
last_name: Schaye
- first_name: Raffaella Anna
full_name: Marino, Raffaella Anna
last_name: Marino
- first_name: Sebastiano
full_name: Cantalupo, Sebastiano
last_name: Cantalupo
- first_name: Jarle
full_name: Brinchmann, Jarle
last_name: Brinchmann
- first_name: Thierry
full_name: Contini, Thierry
last_name: Contini
- first_name: Martin
full_name: Wendt, Martin
last_name: Wendt
- first_name: Lutz
full_name: Wisotzki, Lutz
last_name: Wisotzki
- first_name: Johannes
full_name: Zabl, Johannes
last_name: Zabl
- first_name: Nicolas
full_name: Bouché, Nicolas
last_name: Bouché
- first_name: Mohammad
full_name: Akhlaghi, Mohammad
last_name: Akhlaghi
- first_name: Hsiao-Wen
full_name: Chen, Hsiao-Wen
last_name: Chen
- first_name: Adélaîde
full_name: Claeyssens, Adélaîde
last_name: Claeyssens
- first_name: Sean
full_name: Johnson, Sean
last_name: Johnson
- first_name: Floriane
full_name: Leclercq, Floriane
last_name: Leclercq
- first_name: Michael
full_name: Maseda, Michael
last_name: Maseda
- first_name: Jorryt J
full_name: Matthee, Jorryt J
id: 7439a258-f3c0-11ec-9501-9df22fe06720
last_name: Matthee
orcid: 0000-0003-2871-127X
- first_name: Johan
full_name: Richard, Johan
last_name: Richard
- first_name: Tanya
full_name: Urrutia, Tanya
last_name: Urrutia
- first_name: Anne
full_name: Verhamme, Anne
last_name: Verhamme
citation:
ama: 'Muzahid S, Schaye J, Marino RA, et al. MUSEQuBES: Calibrating the redshifts
of Lyα emitters using stacked circumgalactic medium absorption profiles. Monthly
Notices of the Royal Astronomical Society. 2020;496(2):1013-1022. doi:10.1093/mnras/staa1347'
apa: 'Muzahid, S., Schaye, J., Marino, R. A., Cantalupo, S., Brinchmann, J., Contini,
T., … Verhamme, A. (2020). MUSEQuBES: Calibrating the redshifts of Lyα emitters
using stacked circumgalactic medium absorption profiles. Monthly Notices of
the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/staa1347'
chicago: 'Muzahid, Sowgat, Joop Schaye, Raffaella Anna Marino, Sebastiano Cantalupo,
Jarle Brinchmann, Thierry Contini, Martin Wendt, et al. “MUSEQuBES: Calibrating
the Redshifts of Lyα Emitters Using Stacked Circumgalactic Medium Absorption Profiles.”
Monthly Notices of the Royal Astronomical Society. Oxford University Press,
2020. https://doi.org/10.1093/mnras/staa1347.'
ieee: 'S. Muzahid et al., “MUSEQuBES: Calibrating the redshifts of Lyα emitters
using stacked circumgalactic medium absorption profiles,” Monthly Notices of
the Royal Astronomical Society, vol. 496, no. 2. Oxford University Press,
pp. 1013–1022, 2020.'
ista: 'Muzahid S, Schaye J, Marino RA, Cantalupo S, Brinchmann J, Contini T, Wendt
M, Wisotzki L, Zabl J, Bouché N, Akhlaghi M, Chen H-W, Claeyssens A, Johnson S,
Leclercq F, Maseda M, Matthee JJ, Richard J, Urrutia T, Verhamme A. 2020. MUSEQuBES:
Calibrating the redshifts of Lyα emitters using stacked circumgalactic medium
absorption profiles. Monthly Notices of the Royal Astronomical Society. 496(2),
1013–1022.'
mla: 'Muzahid, Sowgat, et al. “MUSEQuBES: Calibrating the Redshifts of Lyα Emitters
Using Stacked Circumgalactic Medium Absorption Profiles.” Monthly Notices of
the Royal Astronomical Society, vol. 496, no. 2, Oxford University Press,
2020, pp. 1013–22, doi:10.1093/mnras/staa1347.'
short: S. Muzahid, J. Schaye, R.A. Marino, S. Cantalupo, J. Brinchmann, T. Contini,
M. Wendt, L. Wisotzki, J. Zabl, N. Bouché, M. Akhlaghi, H.-W. Chen, A. Claeyssens,
S. Johnson, F. Leclercq, M. Maseda, J.J. Matthee, J. Richard, T. Urrutia, A. Verhamme,
Monthly Notices of the Royal Astronomical Society 496 (2020) 1013–1022.
date_created: 2022-07-07T10:20:11Z
date_published: 2020-08-01T00:00:00Z
date_updated: 2022-08-18T11:00:24Z
day: '01'
doi: 10.1093/mnras/staa1347
extern: '1'
external_id:
arxiv:
- '1910.03593'
intvolume: ' 496'
issue: '2'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
- 'galaxies: haloes'
- 'galaxies: high-redshift'
- 'quasars: absorption lines'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1910.03593
month: '08'
oa: 1
oa_version: Preprint
page: 1013-1022
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'
related_material:
link:
- relation: erratum
url: https://doi.org/10.1093/mnras/staa2668
scopus_import: '1'
status: public
title: 'MUSEQuBES: Calibrating the redshifts of Lyα emitters using stacked circumgalactic
medium absorption profiles'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 496
year: '2020'
...
---
_id: '11529'
abstract:
- lang: eng
text: CR7 is among the most luminous Ly α emitters (LAEs) known at z = 6.6 and consists
of at least three UV components that are surrounded by Ly α emission. Previous
studies have suggested that it may host an extreme ionizing source. Here, we present
deep integral field spectroscopy of CR7 with VLT/Multi Unit Spectroscopic Explorer
(MUSE). We measure extended emission with a similar halo scale length as typical
LAEs at z ≈ 5. CR7’s Ly α halo is clearly elongated along the direction connecting
the multiple components, likely tracing the underlying gas distribution. The Ly α
emission originates almost exclusively from the brightest UV component, but we
also identify a faint kinematically distinct Ly α emitting region nearby a fainter
component. Combined with new near-infrared data, the MUSE data show that the rest-frame
Ly α equivalent width (EW) is ≈100 Å. This is a factor 4 higher than the EW measured
in low-redshift analogues with carefully matched Ly α profiles (and thus arguably
H I column density), but this EW can plausibly be explained by star formation.
Alternative scenarios requiring active galactic nucleus (AGN) powering are also
disfavoured by the narrower and steeper Ly α spectrum and much smaller IR to UV
ratio compared to obscured AGN in other Ly α blobs. CR7’s Ly α emission, while
extremely luminous, resembles the emission in more common LAEs at lower redshifts
very well and is likely powered by a young metal-poor starburst.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Jorryt J
full_name: Matthee, Jorryt J
id: 7439a258-f3c0-11ec-9501-9df22fe06720
last_name: Matthee
orcid: 0000-0003-2871-127X
- first_name: Gabriele
full_name: Pezzulli, Gabriele
last_name: Pezzulli
- first_name: Ruari
full_name: Mackenzie, Ruari
last_name: Mackenzie
- first_name: Sebastiano
full_name: Cantalupo, Sebastiano
last_name: Cantalupo
- first_name: Haruka
full_name: Kusakabe, Haruka
last_name: Kusakabe
- first_name: Floriane
full_name: Leclercq, Floriane
last_name: Leclercq
- first_name: David
full_name: Sobral, David
last_name: Sobral
- first_name: Johan
full_name: Richard, Johan
last_name: Richard
- first_name: Lutz
full_name: Wisotzki, Lutz
last_name: Wisotzki
- first_name: Simon
full_name: Lilly, Simon
last_name: Lilly
- first_name: Leindert
full_name: Boogaard, Leindert
last_name: Boogaard
- first_name: Raffaella
full_name: Marino, Raffaella
last_name: Marino
- first_name: Michael
full_name: Maseda, Michael
last_name: Maseda
- first_name: Themiya
full_name: Nanayakkara, Themiya
last_name: Nanayakkara
citation:
ama: 'Matthee JJ, Pezzulli G, Mackenzie R, et al. The nature of CR7 revealed with
MUSE: A young starburst powering extended Ly α emission at z = 6.6. Monthly
Notices of the Royal Astronomical Society. 2020;498(2):3043-3059. doi:10.1093/mnras/staa2550'
apa: 'Matthee, J. J., Pezzulli, G., Mackenzie, R., Cantalupo, S., Kusakabe, H.,
Leclercq, F., … Nanayakkara, T. (2020). The nature of CR7 revealed with MUSE:
A young starburst powering extended Ly α emission at z = 6.6. Monthly Notices
of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/staa2550'
chicago: 'Matthee, Jorryt J, Gabriele Pezzulli, Ruari Mackenzie, Sebastiano Cantalupo,
Haruka Kusakabe, Floriane Leclercq, David Sobral, et al. “The Nature of CR7 Revealed
with MUSE: A Young Starburst Powering Extended Ly α Emission at z = 6.6.” Monthly
Notices of the Royal Astronomical Society. Oxford University Press, 2020.
https://doi.org/10.1093/mnras/staa2550.'
ieee: 'J. J. Matthee et al., “The nature of CR7 revealed with MUSE: A young
starburst powering extended Ly α emission at z = 6.6,” Monthly Notices of the
Royal Astronomical Society, vol. 498, no. 2. Oxford University Press, pp.
3043–3059, 2020.'
ista: 'Matthee JJ, Pezzulli G, Mackenzie R, Cantalupo S, Kusakabe H, Leclercq F,
Sobral D, Richard J, Wisotzki L, Lilly S, Boogaard L, Marino R, Maseda M, Nanayakkara
T. 2020. The nature of CR7 revealed with MUSE: A young starburst powering extended
Ly α emission at z = 6.6. Monthly Notices of the Royal Astronomical Society. 498(2),
3043–3059.'
mla: 'Matthee, Jorryt J., et al. “The Nature of CR7 Revealed with MUSE: A Young
Starburst Powering Extended Ly α Emission at z = 6.6.” Monthly Notices of the
Royal Astronomical Society, vol. 498, no. 2, Oxford University Press, 2020,
pp. 3043–59, doi:10.1093/mnras/staa2550.'
short: J.J. Matthee, G. Pezzulli, R. Mackenzie, S. Cantalupo, H. Kusakabe, F. Leclercq,
D. Sobral, J. Richard, L. Wisotzki, S. Lilly, L. Boogaard, R. Marino, M. Maseda,
T. Nanayakkara, Monthly Notices of the Royal Astronomical Society 498 (2020) 3043–3059.
date_created: 2022-07-07T10:36:01Z
date_published: 2020-10-01T00:00:00Z
date_updated: 2024-10-14T11:33:21Z
day: '01'
doi: 10.1093/mnras/staa2550
extern: '1'
external_id:
arxiv:
- '2008.01731'
intvolume: ' 498'
issue: '2'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
- 'galaxies: evolution'
- 'galaxies: high-redshift'
- dark ages
- reionization
- first stars
- 'cosmology: observations'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2008.01731
month: '10'
oa: 1
oa_version: Preprint
page: 3043-3059
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 nature of CR7 revealed with MUSE: A young starburst powering extended
Ly α emission at z = 6.6'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 498
year: '2020'
...