Dynamical Masses of RCS Galaxy Clusters

Details Dynamical Masses of RCS Galaxy Clusters Dynamical Masses of RCS Galaxy Clusters

2004-04-15

arxiv.org/abs/astro-ph/0404314v1

Astronomy and Astrophysics

Astrophysics

5 pages, 5 figures, to appear in the Proceedings of IAU Colloquium 195: "Outskirts of Galaxy Clusters: intense life in the sub

Scientific paper

10.1017/S1743921304000456

A multi-object spectroscopy follow-up survey of galaxy clusters selected from the Red-sequence Cluster Survey (RCS) is being completed. About forty clusters were chosen with redshifts from 0.15 to 0.6, and in a wide range of richnesses. One of the main science drivers of this survey is a study of internal dynamics of clusters. We present some preliminary results for a subset of the clusters, including the correlation of optical richness with mass, and the mass-to-light ratio as a function of cluster mass.

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