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Mass Profiles of Galaxy Clusters from the Projected Phase-space Distribution of Cluster Members

Andrea Biviano
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Abstract

I review our current knowledge of the mass distribution in clusters, as obtained from the analysis of the projected phase-space distribution of cluster galaxies. I discuss the methods of analysis, their relative advantages and disadvantages, and their reliabilities. I summarize the most recent and important results on the mass distributions of galaxy systems, from nearby to medium-distant systems, and from groups to clusters. In particular I consider how well different proposed models fit the observed cluster mass distribution, and which are the relative distributions of galaxies, baryons, and dark or total mass in clusters. I also discuss the current observational evidence for mass accretion onto galaxy systems, coming mostly from the analysis of the velocity anisotropy profiles.

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Andrea Biviano. 2006-07-04. Mass Profiles of Galaxy Clusters from the Projected Phase-space Distribution of Cluster Members. https://arxiv.org/abs/astro-ph/0607040

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