A Fundamental Test for Galaxy Formation Models: Matching the Lyman-α Absorption Profiles of Galactic Halos Over Three Decades in Distance

Sorini, Daniele; Oñorbe, José; Hennawi, Joseph F.; Lukić, Zarija

doi:10.3847/1538-4357/aabb52

Title: A Fundamental Test for Galaxy Formation Models: Matching the Lyman-α Absorption Profiles of Galactic Halos Over Three Decades in Distance

Journal Article · Wed May 30 00:00:00 EDT 2018 · The Astrophysical Journal (Online)

DOI:https://doi.org/10.3847/1538-4357/aabb52· OSTI ID:1493258

^[1];

^[2];

^[3]; Lukić, Zarija ^[4]

Max-Planck-Inst. für Astronomie, Heidelberg (Germany); Univ. of Heidelberg, Heidelberg (Germany). International Max Planck Research School for Astronomy and Cosmic Physics
Max-Planck-Inst. für Astronomie, Heidelberg (Germany); Univ. of Edinburgh, Scotland (United Kingdom). Scottish Univ. Physics Alliance (SUPA), Inst. for Astronomy
Max-Planck-Inst. für Astronomie, Heidelberg (Germany); Univ. of California, San Diego, CA (United States). Dept. of Physics
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Galaxy formation depends critically on the physical state of gas in the circumgalactic medium (CGM) and its interface with the intergalactic medium (IGM), determined by the complex interplay between inflow from the IGM and outflows from supernovae and/or AGN feedback. The average Lyα absorption profile around galactic halos represents a powerful tool to probe their gaseous environments. We compare predictions from Illustris and Nyx hydrodynamical simulations with the observed absorption around foreground quasars, damped Lyα systems, and Lyman-break galaxies. We show how large-scale BOSS and small-scale quasar pair measurements can be combined to precisely constrain the absorption profile over three decades in transverse distance 20 kpc ≲ b ≲ 20 Mpc. Far from galaxies, ≲ 2 Mpc, the simulations converge to the same profile and provide a reasonable match to the observations. This asymptotic agreement arises because the ΛCDM model successfully describes the ambient IGM and represents a critical advantage of studying the mean absorption profile. However, significant differences between the simulations, and between simulations and observations, are present on scales 20 kpc ≲ b ≲ 20 Mpc, illustrating the challenges of accurately modeling and resolving galaxy formation physics. It is noteworthy that these differences are observed as far out as ~2 Mpc, indicating that the "sphere of influence" of galaxies could extend to approximately ~7 times the halo virial radius. Current observations are very precise on these scales and can thus strongly discriminate between different galaxy formation models. We demonstrate that the Lyα absorption profile is primarily sensitive to the underlying temperature-density relationship of diffuse gas around galaxies, and argue that it thus provides a fundamental test of galaxy formation models.

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Research Organization:: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP)

Grant/Contract Number:: AC02-05CH11231

OSTI ID:: 1493258

Journal Information:: The Astrophysical Journal (Online), Vol. 859, Issue 2; ISSN 1538-4357

Publisher:: Institute of Physics (IOP)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 17 works

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The EAGLE simulations: atomic hydrogen associated with galaxies Crain, Robert A.; Bahé, Yannick M.; Lagos, Claudia del P. Monthly Notices of the Royal Astronomical Society, Vol. 464, Issue 4 https://doi.org/10.1093/mnras/stw2586	journal	October 2016
A DEFINITIVE SURVEY FOR LYMAN LIMIT SYSTEMS AT z ∼ 3.5 WITH THE SLOAN DIGITAL SKY SURVEY Prochaska, J. Xavier; O'Meara, John M.; Worseck, Gabor The Astrophysical Journal, Vol. 718, Issue 1 https://doi.org/10.1088/0004-637X/718/1/392	journal	June 2010
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The Illustris simulation: The evolving population of black holes across cosmic time Sijacki, Debora; Vogelsberger, M.; Genel, S. Apollo - University of Cambridge Repository https://doi.org/10.17863/cam.40578	text	January 2019
Gas around galaxy haloes - III: hydrogen absorption signatures around galaxies and QSOs in the Sherwood simulation suite Meiksin, A.; Bolton, Js; Puchwein, E. Apollo - University of Cambridge Repository https://doi.org/10.17863/cam.8748	text	January 2017
Fundamental differences between SPH and grid methods Agertz, Oscar; Moore, Ben; Stadel, Joachim ETH Zurich https://doi.org/10.3929/ethz-b-000007705	text	January 2007
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Properties of galaxies reproduced by a hydrodynamic simulation. Vogelsberger, M.; Genel, S.; Springel, V. Apollo - University of Cambridge Repository https://doi.org/10.17863/cam.31793	text	January 2014
The ninth data release of the sloan digital sky survey: first spectroscopic data from the sdss-iiI baryon oscillation spectroscopic survey Ahn, Christopher P.; Font-Ribera, Andreu; Al, Et IOP Publishing https://doi.org/10.5167/uzh-69894	text	January 2012
Planck 2015 results : XXVI. The Second Ade, P. A. R.; Aghanim, N.; Argüeso, F. Astronomy & Astrophysics, Vol. 594 https://doi.org/10.1051/0004-6361/201526914	journal	September 2016
Column density distribution and cosmological mass density of neutral gas: Sloan Digital Sky Survey-III Data Release 9 Noterdaeme, P.; Petitjean, P.; Carithers, W. C. EDP Sciences https://doi.org/10.5167/uzh-69888	text	January 2012
Constraints on the correlation between QSO luminosity and host halo mass from high-redshift quasar clustering White, Martin; Martini, Paul; Cohn, J. D. arXiv https://doi.org/10.48550/arxiv.0711.4109	text	January 2007
The physics driving the cosmic star formation history Schaye, Joop; Vecchia, Claudio Dalla; Booth, C. M. arXiv https://doi.org/10.48550/arxiv.0909.5196	text	January 2009
The Baryon Content of Cosmic Structures McGaugh, Stacy S.; Schombert, James M.; de Blok, W. J. G. arXiv https://doi.org/10.48550/arxiv.0911.2700	text	January 2009
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The Structure and Kinematics of the Circum-Galactic Medium from Far-UV Spectra of z~2-3 Galaxies Steidel, C. C.; Erb, D. K.; Shapley, A. E. arXiv https://doi.org/10.48550/arxiv.1003.0679	text	January 2010
Neutral hydrogen optical depth near star-forming galaxies at z~2.4 in the Keck Baryonic Structure Survey Rakic, Olivera; Schaye, Joop; Steidel, Charles C. arXiv https://doi.org/10.48550/arxiv.1109.4944	text	January 2011
On the cool gaseous haloes of quasars Farina, E. P.; Falomo, R.; Decarli, R. arXiv https://doi.org/10.48550/arxiv.1211.3433	text	January 2012
The Column Density Distribution and Continuum Opacity of the Intergalactic and Circumgalactic Medium at Redshift =2.4 Rudie, Gwen C.; Steidel, Charles C.; Shapley, Alice E. arXiv https://doi.org/10.48550/arxiv.1304.6719	text	January 2013
A model for cosmological simulations of galaxy formation physics Vogelsberger, Mark; Genel, Shy; Sijacki, Debora arXiv https://doi.org/10.48550/arxiv.1305.2913	text	January 2013
How to Zoom: Bias, Contamination, and Lagrange Volumes in Multimass Cosmological Simulations Oñorbe, Jose; Garrison-Kimmel, Shea; Maller, Ariyeh H. arXiv https://doi.org/10.48550/arxiv.1305.6923	text	January 2013
Confronting Simulations of Optically Thick Gas in Massive Halos with Observations at z=2-3 Fumagalli, Michele; Hennawi, Joseph F.; Prochaska, J. Xavier arXiv https://doi.org/10.48550/arxiv.1308.1669	text	January 2013
The COS-Halos Survey: Rationale, Design, and A Census of Circumgalactic Neutral Hydrogen Tumlinson, Jason; Thom, Christopher; Werk, Jessica arXiv https://doi.org/10.48550/arxiv.1309.6317	text	January 2013
Metal-line absorption around $z\approx$2.4 star-forming galaxies in the Keck Baryonic Structure Survey Turner, Monica L.; Schaye, Joop; Steidel, Charles C. arXiv https://doi.org/10.48550/arxiv.1403.0942	text	January 2014
Metal-enriched, sub-kiloparsec gas clumps in the circumgalactic medium of a faint z = 2.5 galaxy Crighton, Neil H. M.; Hennawi, Joseph F.; Simcoe, Robert A. arXiv https://doi.org/10.48550/arxiv.1406.4239	text	January 2014
Neutral hydrogen in galaxy halos at the peak of the cosmic star formation history Faucher-Giguere, C. -A.; Hopkins, P. F.; Keres, D. arXiv https://doi.org/10.48550/arxiv.1409.1919	text	January 2014
Planck 2015 results. XIII. Cosmological parameters Collaboration, Planck; Ade, P. A. R.; Aghanim, N. arXiv https://doi.org/10.48550/arxiv.1502.01589	text	January 2015
NIHAO project I: Reproducing the inefficiency of galaxy formation across cosmic time with a large sample of cosmological hydrodynamical simulations Wang, Liang; Dutton, Aaron A.; Stinson, Gregory S. arXiv https://doi.org/10.48550/arxiv.1503.04818	text	January 2015
Quasars Probing Quasars VIII. The Physical Properties of the Cool Circumgalactic Medium Surrounding z ~ 2-3 Massive Galaxies Hosting Quasars Lau, Marie Wingyee; Prochaska, J. Xavier; Hennawi, Joseph F. arXiv https://doi.org/10.48550/arxiv.1510.06018	text	January 2015
The Evolution of the Intergalactic Medium McQuinn, Matthew arXiv https://doi.org/10.48550/arxiv.1512.00086	text	January 2015
NIHAO VIII: Circum-galactic medium and outflows - The puzzles of HI and OVI gas distributions Gutcke, Thales A.; Stinson, Greg S.; Macciò, Andrea V. arXiv https://doi.org/10.48550/arxiv.1602.06956	text	January 2016
Self-Consistent Modeling of Reionization in Cosmological Hydrodynamical Simulations Oñorbe, Jose; Hennawi, Joseph F.; Lukić, Zarija arXiv https://doi.org/10.48550/arxiv.1607.04218	text	January 2016
First results from the IllustrisTNG simulations: the stellar mass content of groups and clusters of galaxies Pillepich, Annalisa; Nelson, Dylan; Hernquist, Lars arXiv https://doi.org/10.48550/arxiv.1707.03406	text	January 2017
Galaxies and Intergalactic Matter at Redshift z~3: Overview Adelberger, K. L.; Steidel, C. C.; Shapley, A. E. arXiv https://doi.org/10.48550/arxiv.astro-ph/0210314	text	January 2002
Binary Quasars in the Sloan Digital Sky Survey: Evidence for Excess Clustering on Small Scales Hennawi, Joseph F.; Strauss, Michael A.; Oguri, Masamune arXiv https://doi.org/10.48550/arxiv.astro-ph/0504535	text	January 2005
The Oxford-Dartmouth Thirty Degree Survey II: Clustering of Bright Lyman Break Galaxies - Strong Luminosity Dependent Bias at z=4 Allen, Paul D.; Moustakas, Leonidas A.; Dalton, Gavin arXiv https://doi.org/10.48550/arxiv.astro-ph/0505015	text	January 2005
Reconciling the local galaxy population with damped Ly-alpha cross sections and metal abundances Zwaan, M. A.; van der Hulst, J. M.; Briggs, F. H. arXiv https://doi.org/10.48550/arxiv.astro-ph/0510127	text	January 2005
Quasars Probing Quasars I: Optically Thick Absorbers Near Luminous Quasars Hennawi, Joseph F.; Prochaska, Jason X.; Burles, Scott arXiv https://doi.org/10.48550/arxiv.astro-ph/0603742	text	January 2006
QSO Absorption Lines from QSOs Bowen, David V.; Hennawi, Joseph F.; Menard, Brice arXiv https://doi.org/10.48550/arxiv.astro-ph/0605730	text	January 2006
Quasars Probing Quasars II: The Anisotropic Clustering of Optically Thick Absorbers around Quasars Hennawi, Joseph F.; Prochaska, Jason X. arXiv https://doi.org/10.48550/arxiv.astro-ph/0606084	text	January 2006
A New Parallel N-body Gravity Solver: TPM Xu, Guohong arXiv https://doi.org/10.48550/arxiv.astro-ph/9409021	text	January 1994
Equation of State of the Photoionized Intergalactic Medium Hui, Lam; Gnedin, Nickolay Y. arXiv https://doi.org/10.48550/arxiv.astro-ph/9612232	text	January 1996

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79 ASTRONOMY AND ASTROPHYSICS
cosmology: miscellaneous
galaxies: halos
intergalactic medium
methods: numerical
quasars: absorption lines

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