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The formation of massive, quiescent galaxies at cosmic noon

Feldmann, Robert and Hopkins, Philip F. and Quataert, Eliot and Faucher-Giguère, Claude-André and Kereš, Dušan (2016) The formation of massive, quiescent galaxies at cosmic noon. Monthly Notices of the Royal Astronomical Society: Letters, 458 (1). L14-L18. ISSN 1745-3925.

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The cosmic noon (z ∼ 1.5–3) marked a period of vigorous star formation for most galaxies. However, about a third of the more massive galaxies at those times were quiescent in the sense that their observed stellar populations are inconsistent with rapid star formation. The reduced star formation activity is often attributed to gaseous outflows driven by feedback from supermassive black holes, but the impact of black hole feedback on galaxies in the young Universe is not yet definitively established. We analyse the origin of quiescent galaxies with the help of ultrahigh resolution, cosmological simulations that include feedback from stars but do not model the uncertain consequences of black hole feedback. We show that dark matter haloes with specific accretion rates below ∼0.25–0.4 Gyr^(−1) preferentially host galaxies with reduced star formation rates and red broad-band colours. The fraction of such haloes in large dark matter only simulations matches the observed fraction of massive quiescent galaxies (∼10^(10)–10^(11) M⊙). This strongly suggests that halo accretion rate is the key parameter determining which massive galaxies at z ∼ 1.5–3 become quiescent. Empirical models that connect galaxy and halo evolution, such as halo occupation distribution or abundance matching models, assume a tight link between galaxy properties and the masses of their parent haloes. These models will benefit from adding the specific accretion rate of haloes as a second model parameter.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Feldmann, Robert0000-0002-1109-1919
Hopkins, Philip F.0000-0003-3729-1684
Quataert, Eliot0000-0001-9185-5044
Faucher-Giguère, Claude-André0000-0002-4900-6628
Kereš, Dušan0000-0002-1666-7067
Additional Information:© 2016 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. Accepted 2016 January 19. Received 2016 January 18; in original form 2015 November 24. First published online February 6, 2016. RF was supported in part by NASA through Hubble Fellowship grant HF2-51304.001-A awarded by the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., for NASA, under contract NAS 5-26555, in part by the Theoretical Astrophysics Center at UC Berkeley, and by NASA ATP grant 12-ATP-120183. Support for PFH was provided by an Alfred P. Sloan Research Fellowship, NASA ATP Grant NNX14AH35G, and NSF Collaborative Research Grant #1411920 and CAREER grant #1455342. CAFG was supported by NSF through grants AST-1412836 and AST-1517491, by NASA through grant NNX15AB22G, and by Northwestern University funds. DK was supported by NSF grant AST-1412153. EQ was supported by NASA ATP grant 12-ATP-120183, a Simons Investigator award from the Simons Foundation, and the David and Lucile Packard Foundation. Simulations were run with resources provided by the NASA High-End Computing (HEC) Programme through the NASA Advanced Supercomputing (NAS) Division at Ames Research Center, proposal SMD-14-5492. Additional computing support was provided by HEC allocation SMD-14-5189 and NSF XSEDE allocation TG-AST120025.
Funding AgencyGrant Number
NASA Hubble FellowshipHF2-51304.001-A
NASANAS 5-26555
Alfred P. Sloan FoundationUNSPECIFIED
Northwestern UniversityUNSPECIFIED
Simons FoundationUNSPECIFIED
David and Lucile Packard FoundationUNSPECIFIED
Subject Keywords:galaxies: evolution – galaxies: formation – galaxies: high-redshift – galaxies: star formation
Issue or Number:1
Record Number:CaltechAUTHORS:20160512-111526655
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Official Citation:Robert Feldmann, Philip F. Hopkins, Eliot Quataert, Claude-André Faucher-Giguère, and Dušan Kereš The formation of massive, quiescent galaxies at cosmic noon MNRAS (May 01, 2016) Vol. 458 L14-L18 doi:10.1093/mnrasl/slw014 First published online February 6, 2016
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:67050
Deposited By: Tony Diaz
Deposited On:12 May 2016 20:50
Last Modified:09 Mar 2020 13:18

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