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The Colors of Central and Satellite Galaxies in zCOSMOS out to z ~ 0.8 and Implications for Quenching
C. Knobel, S. J. Lilly, K. Kovac +47
We examine the red fraction of central and satellite galaxies in the large zCOSMOS group catalog out to z ~ 0.8 correcting for both the incompleteness in stellar mass and for the l…
Proto-groups at 1.8<z<3 in the zCOSMOS-deep sample
C. Diener, S. J. Lilly, C. Knobel +48
We identify 42 candidate groups lying between 1.8<z<3.0 from a sample of 3502 galaxies with spectroscopic redshifts in the zCOSMOS-deep redshift survey within the same redshift int…
A group-galaxy cross-correlation function analysis in zCOSMOS
C. Knobel, S. J. Lilly, C. M. Carollo +46
We present a group-galaxy cross-correlation analysis using a group catalog produced from the 16,500 spectra from the optical zCOSMOS galaxy survey. Our aim is to perform a consiste…
The zCOSMOS 20k Group Catalog
C. Knobel, S. J. Lilly, A. Iovino +48
We present an optical group catalog between 0.1 < z < 1 based on 16,500 high-quality spectroscopic redshifts in the completed zCOSMOS-bright survey. The catalog published herein co…
The COSMOS Density Field: A Reconstruction Using Both Weak Lensing and Galaxy Distributions
A. Amara, S. Lilly, K. Kovac +49
The COSMOS field has been the subject of a wide range of observations, with a number of studies focusing on reconstructing the 3D dark matter density field. Typically, these studie…
The dominant role of mergers in the size evolution of massive early-type galaxies since z ~ 1
C. López-Sanjuan, O. Le Fèvre, O. Ilbert +60
In this paper we measure the merger fraction and rate, both minor and major, of massive early-type galaxies (M_star >= 10^11 M_Sun) in the COSMOS field, and study their role in mas…