Tracing the Cluster Internal Dynamics with Member Galaxies
Astrophysics
2007-05-23 v1
Abstract
The analysis of the spatial distribution and kinematics of galaxies in clusters allows one to determine the cluster internal dynamics. In this paper, I review the state of the art of this topic. In particular, I summarize what we have learned so far about galaxy orbits in clusters, and about the cluster mass distribution. I then compare four methods that have recently been used in the literature, by applying them to the same data-set. The results stress the importance of reducing systematic besides random errors, for a reliable determination of cluster mass profiles.
Cite
@article{arxiv.astro-ph/0110053,
title = {Tracing the Cluster Internal Dynamics with Member Galaxies},
author = {Andrea Biviano},
journal= {arXiv preprint arXiv:astro-ph/0110053},
year = {2007}
}
Comments
12 pages, 8 figures, invited review at the workshop "Tracing Cosmic Evolution with Galaxy Clusters" (Sesto 2001), ASP Conference Series