CLoGS: The Complete Local-volume Groups Sample

Details CLoGS: The Complete Local-volume Groups Sample CLoGS: The Complete Local-volume Groups Sample

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010xmm..prop..158o&link_type=abstract

XMM-Newton Proposal ID #06737709

Physics

Groups Of Galaxies, Clusters Of Galaxies, Supercluster, Lgg072, Lgg066, Lgg031, Lgg402, Lgg262, Lgg103, Lgg421, Lgg061, Lgg058

Scientific paper

The current lack of a statistical X-ray sample of galaxy groups is a serious hindrance to studies of galaxy evolution, structure formation, and feedback processes. The subset of nearby groups observed in the X-ray contains less than half the number of systems expected and is biased in unknown ways. We have defined an optically selected, statistically complete sample of groups in the local Universe, screened to exclude systems which are uncollapsed or embedded in larger structures. This will allow the first detailed studies of the gas content, thermal history and physical properties of an unbiased sample of groups, and significantly improve our understanding of the mass distribution in the local volume.

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