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Galaxy Evolution in Three dimensions : Time, Space and Mass
Tadayuki Kodama, Richard Bower, Philip Best +3
There are three major axes to describe the evolution of galaxies, namely, time (redshift), space (environment) and mass (stellar mass). In this article, one topic each will be pres…
Galaxy ecology: groups and low-density environments in the SDSS and 2dFGRS
Michael Balogh, Vince Eke, Chris Miller +34
We analyse the observed correlation between galaxy environment and H-alpha emission line strength, using volume-limited samples and group catalogues of 24968 galaxies drawn from th…
Exploring the Selection of Galaxy Clusters and Groups: An Optical Survey for X-ray Dark Clusters
David G. Gilbank, Richard G. Bower, F. J. Castander +1
Data from a new, wide field, coincident optical and X-ray survey, the X-ray Dark Cluster Survey (XDCS) are presented. This survey comprises simultaneous and independent searches fo…
Chandra Detections of SCUBA Galaxies around High-z Radio Sources
Ian Smail, C. A. Scharf, R. J. Ivison +3
The most massive galaxies in the present day universe are the giant ellipticals found in the centers of rich clusters. These have old, coeval stellar populations, suggesting they f…
Galaxies Under the Cosmic Microscope: A GMOS Study of the Lensed Disk-Galaxy #289 in A2218
A. M. Swinbank, J. Smith, R. G. Bower +7
In this letter, we exploit the gravitational potential of the rich cluster A2218 as a magnifying glass. We demonstrate that the magnification due to the cluster allows us to observ…
Extended X-ray emission around 4C 41.17 at z=3.8
C. A. Scharf, I. Smail, R. Ivison +3
We present sensitive, high-resolution, X-ray imaging from Chandra of the high-redshift radio galaxy 4C 41.17 (z=3.8). Our 150-ks Chandra exposure detects strong X-ray emission from…