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Tracing the mass profiles of galaxy clusters with member galaxies

Published online by Cambridge University Press:  19 May 2006

G.A. Mamon ,
F. Combes ,
C. Deffayet ,
B. Fort  and
A. Biviano
A. Biviano*
Affiliation:
INAF – Osservatorio Astronomico di Trieste, via G.B. Tiepolo 11, 34131 Trieste, Italy
*
[email protected]
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Abstract

The mass distribution of galaxy clusters can be determined from thestudy of the projected phase-space distribution of cluster galaxies.The main advantage of this method as compared to others, is that itallows determination of cluster mass profiles out to very largeradii. Here I review recent analyses and results on this topic. Inparticular, I briefly describe the Jeans and Caustic methods, and theproblems one has to face in applying these methods to galaxysystems. Then, I summarize the most recent and important results onthe mass distributions of galaxy groups, clusters, and superclusters.Additional covered topics are the relative distributions of the darkand baryonic components, and the orbits of galaxies in clusters.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 20: Mass Profiles and Shapes of Cosmological Structures , 2006 , pp. 171 - 178
Copyright
© EAS, EDP Sciences, 2006

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