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arXiv · astro-ph/9512104

X-ray evolution in the ROSAT Brightest Cluster Sample

H. Ebeling·S. W. Allen·C. S. Crawford·A. C. Edge·A. C. Fabian·H. Böhringer·W. Voges·J. P. Huchra
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Abstract

We present the X-ray luminosity function (XLF) of the ROSAT Brightest Cluster Sample (BCS), an X-ray selected, flux limited sample of 172 clusters of galaxies at $z\leq 0.3$ compiled from ROSAT All-Sky Survey data. While the bulk of the BCS consists of Abell clusters, the sample also contains Zwicky clusters and purely X-ray selected systems. The BCS-XLF represents the best determination of the local X-ray luminosity function for galaxy clusters and thus provides an important reference for evolutionary studies. For the BCS itself, we find no convincing evidence for cluster evolution within a redshift of $z=0.3$. This result is not in conflict with the findings of the EMSS study on cluster evolution.

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H. Ebeling, S. W. Allen, C. S. Crawford, A. C. Edge, A. C. Fabian, H. Böhringer, W. Voges, J. P. Huchra. 1995-12-15. X-ray evolution in the ROSAT Brightest Cluster Sample. https://arxiv.org/abs/astro-ph/9512104

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