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The evolution of the gas content of galaxy groups

✍ Scribed by E.M. Wilcots

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
302 KB
Volume
330
Category
Article
ISSN
0004-6337

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✦ Synopsis

Abstract

We examine multiple facets of the evolution of the gas content of galaxy groups. Complementing building evidence that a tremendous amount of galaxy transformation takes place in the group environment we find evidence of similar transformation of the gas content. In dynamically young groups galaxy‐galaxy interactions appear to be responsible for depositing large quantities of neutral gas into the intergalactic medium. The gas content of dynamically evolved groups, however, is characterized by extended halos of diffuse hot gas. We also find that groups may harbor significant quantities of heretofore undetected baryons and that feedback from AGN may be responsible for heating the intragroup medium (Β© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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