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The X-ray evolution of clusters of galaxies at high redshift
from WARPS
Laurence Jones (Birmingham)
The evolution with redshift of the X-ray properties of the
galaxy cluster population can provide strong cosmological
constraints. The Wide Angle ROSAT Pointed Survey (WARPS)
currently contains over 100 groups and
clusters of galaxies serendipitously selected from ROSAT
X-ray pointed data. Spectroscopically confirmed redshifts range
currently range from z=0.05 to z=0.83. We present the X-ray luminosity
function as a function of redshift and discuss some of the
unusual objects: a high redshift, luminous cluster and
`fossil' galaxy groups at low redshift.
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