Massive quiescent galaxies at z > 3 in the Millennium simulation populated by a semi-analytic galaxy formation model

Rong, Yu; Jing, Yingjie; Gao, Liang; Guo, Qi; Wang, Jie; Sun, Shuangpeng; Wang, Lin; Pan, Jun

doi:10.1093/mnrasl/slx099

Massive quiescent galaxies at z > 3 in the Millennium simulation populated by a semi-analytic galaxy formation model

Rong, Yu; Jing, Yingjie; Gao, Liang; Guo, Qi; Wang, Jie; Sun, Shuangpeng; Wang, Lin; Pan, Jun

Authors

Yu Rong

Yingjie Jing

Liang Gao

Qi Guo

Jie Wang

Shuangpeng Sun

Lin Wang

Jun Pan

Abstract

We take advantage of the statistical power of the large-volume dark-matter-only Millennium simulation (MS), combined with a sophisticated semi-analytic galaxy formation model, to explore whether the recently reported z = 3.7 quiescent galaxy ZF-COSMOS-20115 (ZF) can be accommodated in current galaxy formation models. In our model, a population of quiescent galaxies with stellar masses and star formation rates comparable to those of ZF naturally emerges at redshifts z < 4. There are two and five ZF analogues at the redshifts 3.86 and 3.58, respectively, in the MS volume. We demonstrate that, while the z > 3.5 massive QGs are rare (about 2 per cent of the galaxies with the similar stellar masses), the existing AGN feedback model implemented in the semi-analytic galaxy formation model can successfully explain the formation of the high-redshift QGs as it does on their lower redshift counterparts.

Citation

Rong, Y., Jing, Y., Gao, L., Guo, Q., Wang, J., Sun, S., …Pan, J. (2017). Massive quiescent galaxies at z > 3 in the Millennium simulation populated by a semi-analytic galaxy formation model. Monthly Notices of the Royal Astronomical Society: Letters, 471(1), L36-L40. https://doi.org/10.1093/mnrasl/slx099

Journal Article Type	Article
Acceptance Date	Jun 14, 2017
Online Publication Date	Jun 16, 2017
Publication Date	Oct 11, 2017
Deposit Date	Oct 12, 2017
Publicly Available Date	Oct 12, 2017
Journal	Monthly Notices of the Royal Astronomical Society: Letters
Electronic ISSN	1745-3933
Publisher	Oxford University Press
Peer Reviewed	Peer Reviewed
Volume	471
Issue	1
Pages	L36-L40
DOI	https://doi.org/10.1093/mnrasl/slx099

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This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society: Letters ©: 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.