paper

Massive Quiescent Galaxies at z>3 in The Millennium Simulation Populated by A Semi-analytic Galaxy Formation Model

arXiv:1704.00012 · doi:10.1093/mnrasl/slx099

Abstract

We take advantage of the statistical power of the large-volume dark-matter-only Millennium simulation, combined with a sophisticated semi-analytic galaxy formation model, to explore whether the recently reported quiescent galaxy ZF-COSMOS-20115 (ZF; Glazebrook et al. 2017) can be accommodated in current galaxy formation models. In our model, a population of quiescent galaxies (QGs) with stellar masses and star formation rates comparable to those of ZF naturally emerges at redshifts . There are two and five ZF analogues at the redshift and in the Millennium simulation volume, respectively. We demonstrate that, while the massive QGs are rare (about 2\% 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.

Revised to match the version accepted for publication in MNRAS; we add the discussion on the number density of high-redshift massive quiescent galaxies

References in corpus (14)

Cited by in corpus (11)