The relation between galactic properties and cluster structure
Abstract
A satisfactory understanding of the origin of the dependence of galaxy properties on their environment has remained, so far, out of reach. In the light of numerous observational results and substantial theoretical progress obtained for clusters of galaxies in the last years, a primary goal is to understand how the star formation activity depends on cluster substructure, i.e. on the merging/accretion history of a cluster. In this contribution we present a case in which it is possible to identify the cluster environment, and in particular the intracluster medium and the recent infall history of galaxies onto the cluster, as the cause for an abrupt change in the star formation histories of a subset of galaxies in the Coma cluster.
Cite
@article{arxiv.astro-ph/0311428,
title = {The relation between galactic properties and cluster structure},
author = {Bianca M. Poggianti and Terry J. Bridges and M. Yagi and Y. Komiyama and D. Carter and B. Mobasher and S. Okamura and N. Kashikawa},
journal= {arXiv preprint arXiv:astro-ph/0311428},
year = {2007}
}
Comments
11 pages, 10 postscript figures - Invited talk at the IAU Symp. 216, to appear in "Maps of the Cosmos", ASP Conf. Series, eds. Matthew Colless and Lister Staveley-Smith