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Does black-hole growth depend on the cosmic environment?

Yang, G. and Brandt, W. N. and Darvish, B. and Chen, C.-T. J. and Vito, F. and Alexander, D. M. and Bauer, F. E. and Trump, J. R. (2018) Does black-hole growth depend on the cosmic environment? Monthly Notices of the Royal Astronomical Society, 480 (1). pp. 1022-1042. ISSN 0035-8711. doi:10.1093/mnras/sty1910.

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It is well known that environment affects galaxy evolution, which is broadly related to supermassive black hole (SMBH) growth. We investigate whether SMBH evolution also depends on host-galaxy local (sub-Mpc) and global (≈1–10 Mpc) environment. We construct the surface-density field (local environment) and cosmic web (global environment) in the Cosmic Evolution Survey (COSMOS) field at z = 0.3–3.0. The environments in COSMOS range from the field to clusters (M_(halo) ≲ 10^(14) M⊙), covering the environments where ≈ 99 per cent of galaxies in the Universe reside. We measure sample-averaged SMBH accretion rate (BHAR) from X-ray observations, and study its dependence on overdensity and cosmic-web environment at different redshifts while controlling for galaxy stellar mass (M⋆). Our results show that BHAR does not significantly depend on overdensity or cosmic-web environment once M⋆ is controlled, indicating that environment-related physical mechanisms (e.g. tidal interaction and ram-pressure stripping) might not significantly affect SMBH growth. We find that BHAR is strongly related to host-galaxy M⋆, regardless of environment.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Brandt, W. N.0000-0002-0167-2453
Darvish, B.0000-0003-4919-9017
Chen, C.-T. J.0000-0002-4945-5079
Alexander, D. M.0000-0002-5896-6313
Bauer, F. E.0000-0002-8686-8737
Additional Information:© 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model ( Accepted 2018 July 14. Received 2018 June 27; in original form 2018 May 1. Published: 19 July 2018. We thank the referee for helpful feedback that improved this work. We thank Francesca Civano, Clotilde Laigle, and Mara Salvato for providing relevant data. We thank Robin Ciardullo, Antonis Georgakakis, Ryan Hickox, Donghui Jeong, Paul Martini, Qingling Ni, John Silverman, Michael Strauss, and Rosemary Wyse for helpful discussions. GY, WNB, CTC, and FV acknowledge support from Chandra X-ray Center grants GO4-15130A and AR8-19016X, NASA grant NNX17AF07G, and the NASA Astrophysics Data Analysis Program (ADAP). BD acknowledges financial support from NASA through the ADAP, grant number NNX12AE20G, and the National Science Foundation, grant number 1716907. DMA acknowledges the Science and Technology Facilities Council through grant ST/P000541/1. FEB acknowledges support from CONICYT-Chile (Basal-CATA PFB-06/2007, FONDO ALMA 31160033) and the Ministry of Economy, Development, and Tourism’s Millennium Science Initiative through grant IC120009, awarded to The Millennium Institute of Astrophysics, MAS. This project uses ASTROPY (a PYTHON package; see Astropy Collaboration et al. 2013, 2018) and the SVO Filter Profile Service (
Funding AgencyGrant Number
Science and Technology Facilities Council (STFC)ST/P000541/1
Comisión Nacional de Investigación Científica y Tecnológica (CONICYT)FONDO ALMA 31160033
Iniciativa Científica Milenio del Ministerio de Economía, Fomento y TurismoIC120009
Issue or Number:1
Record Number:CaltechAUTHORS:20180912-161202220
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Official Citation:G Yang(杨光), W N Brandt, B Darvish, C-T J Chen(陳建廷), F Vito, D M Alexander, F E Bauer, J R Trump; Does black-hole growth depend on the cosmic environment?, Monthly Notices of the Royal Astronomical Society, Volume 480, Issue 1, 11 October 2018, Pages 1022–1042,
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:89600
Deposited By: Tony Diaz
Deposited On:12 Sep 2018 23:26
Last Modified:16 Nov 2021 00:36

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