Abstract
We use the United Kingdom Infrared Telescope Deep Sky Survey (UKIDSS)
Ultra Deep Survey (UDS), the deepest degree-scale near-infrared survey
to date, to investigate the clustering of star-forming and passive
galaxies to z ˜ 3.5. Our new measurements include the first
determination of the clustering for passive galaxies at z > 2, which
we achieve using a cross-correlation technique. We find that passive
galaxies are the most strongly clustered, typically hosted by massive
dark matter haloes with Mhalo > 5 × 1012
M⊙ irrespective of redshift or stellar mass. Our findings
are consistent with models in which a critical halo mass determines the
transition from star-forming to passive galaxies. Star-forming galaxies
show no strong correlation between stellar mass and halo mass, but
passive galaxies show evidence for an anticorrelation; low-mass passive
galaxies appear, on average, to be located in the most massive haloes.
These results can be understood if the termination of star formation is
most efficient for galaxies of low stellar mass in very dense
environments.
Original language | English |
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Pages (from-to) | 3045-3059 |
Journal | Monthly Notices of the Royal Astronomical Society |
Volume | 431 |
Publication status | Published - 1 Jun 2013 |
Keywords
- galaxies: evolution
- galaxies: formation
- galaxies: high-redshift
- large-scale structure of Universe
- infrared: galaxies