Gas in Groups and Clusters of Galaxies

Details Gas in Groups and Clusters of Galaxies Gas in Groups and Clusters of Galaxies

2002-12-04

arxiv.org/abs/astro-ph/0212104v1

Astrophys.Space Sci. 289 (2004) 419-428

Astronomy and Astrophysics

Astrophysics

Invited review given at the JENAM 2002 in Porto, Workshop ISM, eds. M.A. de Avillez & D. Breitschwerdt, Kluwer, 10 pages, 7 fi

Scientific paper

10.1023/B:ASTR.0000014973.75505.

Groups and clusters contain a large fraction of hot gas which emits X-ray radiation. This gas yields information on the dynamical state and on the total mass of these systems. X-ray spectra show that heavy elements are present in the gas. As these metals must have been produced in the cluster/group galaxies and later transported into the gas, the metallicity is a good tracer for the transport processes. Several possible processes, that transport gas from the small potential wells of the galaxies into the clusters and groups, are discussed.

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