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astro-ph2001
The Butcher-Oemler Effect in High Redshift X-ray Selected Clusters
David A. Wake, Chris A. Collins, Bruce W. Fairley +4
We are engaged in a wide-field, multi-colour imaging survey of X-ray selected clusters at intermediate and high redshift. We present blue fractions for the first 8 out of 29 cluste…
astro-ph2001
The Properties of Brightest Cluster Galaxies in X-Ray Selected Clusters
Sarah Brough, Chris A. Collins, Doug J. Burke +2
We present the K-band Hubble diagram for 162 brightest cluster galaxies (BCGs) in X-ray selected clusters, 0.01<z<0.83. The sample incorporates that of Burke, Collins, & Mann (2000…
astro-ph2001
The XMM-Newton Project
J. G. Bartlett, N. Aghanim, M. Arnaud +16
The abundance of high-redshift galaxy clusters depends sensitively on the matter density $\OmM$ and, to a lesser extent, on the cosmological constant . Measurements of this abun…