Newcomers meet the intracluster medium in the Coma cluster
Abstract
A main topic at this meeting is how galaxies are affected when they enter for the first time the cluster environment from the outskirts. Most of the times we are forced to infer the environmental effects indirectly, relying on systematic variations of galaxy properties with environment, but there aren't many examples of direct observations able to unveil ongoing transformations, and the corresponding mechanism producing it. 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 a recent, abrupt change in the evolutionary history of galaxies.
- Publication:
-
IAU Colloq. 195: Outskirts of Galaxy Clusters: Intense Life in the Suburbs
- Pub Date:
- July 2004
- DOI:
- 10.1017/S1743921304000778
- arXiv:
- arXiv:astro-ph/0404481
- Bibcode:
- 2004ogci.conf..362P
- Keywords:
-
- Astrophysics
- E-Print:
- 5 pages, 1 postscript figure -- to appear in "Outskirts of Galaxy Clusters: intense life in the suburbs", IAU Colloquium N. 195, 2004, ed. A Diaferio