EVOLUTION OF THE STELLAR-TO-DARK MATTER RELATION: SEPARATING STAR-FORMING AND PASSIVE GALAXIES FROM z = 1 TO 0

We use measurements of the stellar mass function, galaxy clustering, and galaxy-galaxy lensing within the COSMOS survey to constrain the stellar-to-halo mass relation (SHMR) of star forming and quiescent galaxies over the redshift range z = [0.2, 1.0], Our analysis also affords a breakdown of all CO...

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Bibliographic Details
Published in:The Astrophysical journal 2013-12, Vol.778 (2), p.1-18
Main Authors: Tinker, Jeremy L, LEAUTHAUD, ALEXIE, Bundy, Kevin, George, Matthew R, Behroozi, Peter, Massey, Richard, Rhodes, Jason, Wechsler, Risa H
Format: Article
Language:English
Subjects:
ASTROPHYSICS, COSMOLOGY AND ASTRONOMY
BREAKDOWN
COSMOLOGY
Cosmos
EFFICIENCY
GALAXIES
MASS
MIGRATION
NONLUMINOUS MATTER
QUENCHING
RED SHIFT
SATELLITES
Sequences
STAR EVOLUTION
Star formation
STARS
Stellar evolution
Stellar mass
UNIVERSE
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Summary:We use measurements of the stellar mass function, galaxy clustering, and galaxy-galaxy lensing within the COSMOS survey to constrain the stellar-to-halo mass relation (SHMR) of star forming and quiescent galaxies over the redshift range z = [0.2, 1.0], Our analysis also affords a breakdown of all COSMOS galaxies into the relative numbers of central and satellite galaxies for both populations. At z = 1, satellite galaxies dominate the red sequence below the knee in the stellar mass function. But the number of quiescent satellites exhibits minimal redshift evolution; all evolution in the red sequence is due to low-mass central galaxies being quenched of their star formation. We define a "migration rate" to the red sequence as the time derivative of the passive galaxy abundances. These results imply that the efficiency of quenching star formation for centrals is increasing with cosmic time, while the mechanisms that quench the star formation of satellite galaxies in groups and clusters is losing efficiency.
ISSN:0004-637X
1538-4357
DOI:10.1088/0004-637X/778/2/93