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The evolution of the star formation activity in galaxies and its dependence on environment
B. M. Poggianti, A. von der Linden, G. De Lucia +16
We study how the proportion of star-forming galaxies evolves between z=0.8 and z=0 as a function of galaxy environment, using the [OII] line in emission as a signature of ongoing s…
Colors of Luminous Bulges in Cluster MS1054-03 and Field Galaxies at Redshifts z ~ 0.83
David C. Koo, Susmita Datta, Christopher N. A. Willmer +3
Using HST images, we separate the bulge-like (pbulge) and disk-like (pdisk) components of 71 galaxies in the rich cluster MS1054-03 and of 21 in the field. Our key finding is that…
The Evolution of Stellar Mass in the NICMOS UDF and the CFHTLS Deep Fields
Stephen Gwyn, F. D. A. Hartwick, Anudeep Kanwar +2
We measure the build-up of the stellar mass of galaxies from z=6 to z=1. Using 15 band multicolour imaging data in the NICMOS Ultra Deep Field we derive photometric redshifts and m…
EDisCS -- the ESO Distant Cluster Survey -- Sample Definition and Optical Photometry
S. D. M. White, D. I. Clowe, L. Simard +23
We present the ESO Distant Cluster Survey (EDisCS) a survey of 20 fields containing distant galaxy clusters with redshifts ranging from 0.4 to almost 1.0. Candidate clusters were c…
A Hubble Space Telescope Snapshot Survey of Dynamically Close Galaxy Pairs in the CNOC2 Redshift Survey
D. R. Patton, J. K. Grant, L. Simard +3
We compare the structural properties of two classes of galaxies at intermediate redshift: those in dynamically close galaxy pairs, and those which are isolated. Both samples are se…
Galaxy Luminosity Functions to z~1: DEEP2 vs. COMBO-17 and Implications for Red Galaxy Formation
S. M. Faber, C. N. A. Willmer, C. Wolf +28
The DEEP2 and COMBO-17 surveys are used to study the evolution of the luminosity function of red and blue galaxies to . Schechter function fits show that, since ,…
The CFHT Legacy Survey: The Morphology-Density Relation of Galaxies out to Z~1
Martijn Nuijten, Luc simard, Stephen Gwyn +1
We study the relationships between galaxy total luminosity (M_g), morphology, color and environment as a function of redshift. We use a magnitude-limited sample of 65,624 galaxies…
Halpha-Derived Star-Formation Rates For Three z ~ 0.75 EDisCS Galaxy Clusters
Rose A. Finn, Dennis Zaritsky, Donald W. McCarthy +6
We present Halpha-derived star-formation rates (SFRs) for three z ~ 0.75 galaxy clusters. Our 1 sigma flux limit corresponds to a star-formation rate of 0.10-0.24 solar mass per ye…
The DEEP Groth Strip Survey. I. The Sample
Nicole P. Vogt, David C. Koo, Andrew C. Phillips +18
The Deep Extragalactic Exploratory Probe (DEEP) is a multi-phase research program dedicated to the study of the formation and evolution of galaxies and of large scale structure in…
Imaging of SDSS z>6 quasar fields: gravitational lensing, companion galaxies and the host dark matter halos
Chris J. Willott, Will J. Percival, Ross J. McLure +5
We have undertaken deep optical imaging observations of three 6.2<z<6.5 quasar fields in the i' and z' filters. These data are used to search for foreground galaxies which are grav…