Evolution of the cluster X-ray luminosity function from the WARPS survey
L. R. Jones, H. Ebeling, C. Scharf, E. Perlman, D. Horner, B. Fairley, G. Wegner, M. Malkan
Abstract
The evolution of the X-ray luminosity function of clusters of galaxies has been measured to z=0.85 using over 150 X-ray selected clusters found in the WARPS survey. We find no evidence for evolution of the luminosity function at any luminosity or redshift. The observations constrain the evolution of the space density of moderate luminosity clusters to be very small, and much less than predicted by most models of the growth of structure with Omega=1.
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