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Probing satellite quenching with galaxy clustering

descriptionPublicationkeyboard_double_arrow_right Article , Preprint 05 Jun 2015Embargo end date: 01 Jan 2014 English Publisher:Oxford University Press (OUP)Journal:Monthly Notices of the Royal Astronomical Society, volume 451, pages 1,496-1,501 (issn: 0035-8711, eissn: 1365-2966,

Authors: Neal Dalal; Paul M. Ricker; Andrew P. Hearin; Robert T. Chamberlain;

doi: 10.1093/mnras/stv973 , 10.48550/arxiv.1407.2648

arXiv: http://arxiv.org/abs/1407.2648

Probing satellite quenching with galaxy clustering

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Abstract

Satellites within simulated massive clusters are significantly spatially correlated with each other, even when those satellites are not gravitationally bound to each other. This correlation is produced by satellites that entered their hosts relatively recently, and is undetectable for satellites that have resided in their hosts for multiple dynamical timescales. Therefore, a measurement of clustering statistics of cluster satellites may be used to determine the typical accretion redshifts of those satellites into their observed hosts. We argue that such measurements may be used to determine the fraction of satellite galaxies that were quenched by their current hosts, thereby discriminating among models for quenching of star formation in satellite galaxies.

7 pages

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Keywords

Cosmology and Nongalactic Astrophysics (astro-ph.CO), Astrophysics of Galaxies (astro-ph.GA), FOS: Physical sciences, Astrophysics - Astrophysics of Galaxies, Astrophysics - Cosmology and Nongalactic Astrophysics

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