Dark-ages reionization and galaxy formation simulation XX. The Ly alpha IGM transmission properties and environment of bright galaxies during the epoch of reionization

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Dark-ages reionization and galaxy formation simulation XX. The Ly alpha IGM transmission properties and environment of bright galaxies during the epoch of reionization. / Qin, Yuxiang; Wyithe, J. Stuart B.; Oesch, Pascal A.; Illingworth, Garth D.; Leonova, Ecaterina; Mutch, Simon J.; Naidu, Rohan P.

In: Monthly Notices of the Royal Astronomical Society, Vol. 510, No. 3, 12.01.2022, p. 3858-3866.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Qin, Y, Wyithe, JSB, Oesch, PA, Illingworth, GD, Leonova, E, Mutch, SJ & Naidu, RP 2022, 'Dark-ages reionization and galaxy formation simulation XX. The Ly alpha IGM transmission properties and environment of bright galaxies during the epoch of reionization', Monthly Notices of the Royal Astronomical Society, vol. 510, no. 3, pp. 3858-3866. https://doi.org/10.1093/mnras/stab3733

APA

Qin, Y., Wyithe, J. S. B., Oesch, P. A., Illingworth, G. D., Leonova, E., Mutch, S. J., & Naidu, R. P. (2022). Dark-ages reionization and galaxy formation simulation XX. The Ly alpha IGM transmission properties and environment of bright galaxies during the epoch of reionization. Monthly Notices of the Royal Astronomical Society, 510(3), 3858-3866. https://doi.org/10.1093/mnras/stab3733

Vancouver

Qin Y, Wyithe JSB, Oesch PA, Illingworth GD, Leonova E, Mutch SJ et al. Dark-ages reionization and galaxy formation simulation XX. The Ly alpha IGM transmission properties and environment of bright galaxies during the epoch of reionization. Monthly Notices of the Royal Astronomical Society. 2022 Jan 12;510(3):3858-3866. https://doi.org/10.1093/mnras/stab3733

Author

Qin, Yuxiang ; Wyithe, J. Stuart B. ; Oesch, Pascal A. ; Illingworth, Garth D. ; Leonova, Ecaterina ; Mutch, Simon J. ; Naidu, Rohan P. / Dark-ages reionization and galaxy formation simulation XX. The Ly alpha IGM transmission properties and environment of bright galaxies during the epoch of reionization. In: Monthly Notices of the Royal Astronomical Society. 2022 ; Vol. 510, No. 3. pp. 3858-3866.

Bibtex

@article{94c80f069cfe40499a8362b2e017f7c4,
title = "Dark-ages reionization and galaxy formation simulation XX. The Ly alpha IGM transmission properties and environment of bright galaxies during the epoch of reionization",
abstract = "The highly neutral intergalactic medium (IGM) during the epoch of reionization (EoR) is expected to suppress Ly alpha emission with damping-wing absorption, causing nearly no Ly alpha detection from star-forming galaxies at z similar to 8. However, spectroscopic observations of the four brightest galaxies (H-160 similar to 25 mag) at these redshifts do reveal prominent Ly alpha line, suggesting locally ionized IGM. In this paper, we explore the Ly alpha IGM transmission and environment of bright galaxies during the EoR using the Meraxes semi-analytic model. We find brighter galaxies to be less affected by damping-wing absorption as they are effective at ionizing surrounding neutral hydrogen. Specifically, the brightest sources (H-160 less than or similar to 25.5 mag) lie in the largest ionized regions in our simulation, and have low attenuation of their Ly alpha from the IGM (optical depth = 2-5 neighbours within 2 arcmin x 2 arcmin are similar to 2-3 times more likely to show Ly alpha emission. JWST will discover an order of magnitude more neighbours, revealing greater than or similar to 50 galaxies in the largest ionizing bubbles and facilitating direct study of reionization morphology.",
keywords = "cosmology: theory, dark ages, reionization, first stars, diffuse radiation, early Universe, galaxies: high-redshift, intergalactic medium, SIMILAR-TO 7, EQUIVALENT-WIDTH DISTRIBUTION, TEXAS SPECTROSCOPIC SEARCH, UV LUMINOSITY FUNCTIONS, LYMAN-ALPHA, INTERGALACTIC MEDIUM, COSMIC REIONIZATION, ESCAPE FRACTION, BACKGROUND FLUCTUATIONS, OPACITY FLUCTUATIONS",
author = "Yuxiang Qin and Wyithe, {J. Stuart B.} and Oesch, {Pascal A.} and Illingworth, {Garth D.} and Ecaterina Leonova and Mutch, {Simon J.} and Naidu, {Rohan P.}",
year = "2022",
month = jan,
day = "12",
doi = "10.1093/mnras/stab3733",
language = "English",
volume = "510",
pages = "3858--3866",
journal = "Royal Astronomical Society. Monthly Notices",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "3",

}

RIS

TY - JOUR

T1 - Dark-ages reionization and galaxy formation simulation XX. The Ly alpha IGM transmission properties and environment of bright galaxies during the epoch of reionization

AU - Qin, Yuxiang

AU - Wyithe, J. Stuart B.

AU - Oesch, Pascal A.

AU - Illingworth, Garth D.

AU - Leonova, Ecaterina

AU - Mutch, Simon J.

AU - Naidu, Rohan P.

PY - 2022/1/12

Y1 - 2022/1/12

N2 - The highly neutral intergalactic medium (IGM) during the epoch of reionization (EoR) is expected to suppress Ly alpha emission with damping-wing absorption, causing nearly no Ly alpha detection from star-forming galaxies at z similar to 8. However, spectroscopic observations of the four brightest galaxies (H-160 similar to 25 mag) at these redshifts do reveal prominent Ly alpha line, suggesting locally ionized IGM. In this paper, we explore the Ly alpha IGM transmission and environment of bright galaxies during the EoR using the Meraxes semi-analytic model. We find brighter galaxies to be less affected by damping-wing absorption as they are effective at ionizing surrounding neutral hydrogen. Specifically, the brightest sources (H-160 less than or similar to 25.5 mag) lie in the largest ionized regions in our simulation, and have low attenuation of their Ly alpha from the IGM (optical depth = 2-5 neighbours within 2 arcmin x 2 arcmin are similar to 2-3 times more likely to show Ly alpha emission. JWST will discover an order of magnitude more neighbours, revealing greater than or similar to 50 galaxies in the largest ionizing bubbles and facilitating direct study of reionization morphology.

AB - The highly neutral intergalactic medium (IGM) during the epoch of reionization (EoR) is expected to suppress Ly alpha emission with damping-wing absorption, causing nearly no Ly alpha detection from star-forming galaxies at z similar to 8. However, spectroscopic observations of the four brightest galaxies (H-160 similar to 25 mag) at these redshifts do reveal prominent Ly alpha line, suggesting locally ionized IGM. In this paper, we explore the Ly alpha IGM transmission and environment of bright galaxies during the EoR using the Meraxes semi-analytic model. We find brighter galaxies to be less affected by damping-wing absorption as they are effective at ionizing surrounding neutral hydrogen. Specifically, the brightest sources (H-160 less than or similar to 25.5 mag) lie in the largest ionized regions in our simulation, and have low attenuation of their Ly alpha from the IGM (optical depth = 2-5 neighbours within 2 arcmin x 2 arcmin are similar to 2-3 times more likely to show Ly alpha emission. JWST will discover an order of magnitude more neighbours, revealing greater than or similar to 50 galaxies in the largest ionizing bubbles and facilitating direct study of reionization morphology.

KW - cosmology: theory

KW - dark ages

KW - reionization

KW - first stars

KW - diffuse radiation

KW - early Universe

KW - galaxies: high-redshift

KW - intergalactic medium

KW - SIMILAR-TO 7

KW - EQUIVALENT-WIDTH DISTRIBUTION

KW - TEXAS SPECTROSCOPIC SEARCH

KW - UV LUMINOSITY FUNCTIONS

KW - LYMAN-ALPHA

KW - INTERGALACTIC MEDIUM

KW - COSMIC REIONIZATION

KW - ESCAPE FRACTION

KW - BACKGROUND FLUCTUATIONS

KW - OPACITY FLUCTUATIONS

U2 - 10.1093/mnras/stab3733

DO - 10.1093/mnras/stab3733

M3 - Journal article

VL - 510

SP - 3858

EP - 3866

JO - Royal Astronomical Society. Monthly Notices

JF - Royal Astronomical Society. Monthly Notices

SN - 0035-8711

IS - 3

ER -

ID: 303442582