Hot Gas in Spiral-Dominated Groups: Evolution and the Formation of Halos

Details Hot Gas in Spiral-Dominated Groups: Evolution and the Formation of Halos Hot Gas in Spiral-Dominated Groups: Evolution and the Formation of Halos

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006cxo..prop.2239v&link_type=abstract

Chandra Proposal ID #08800951

Computer Science

Chandra Proposal Id #08800951

Scientific paper

The group environment --- the locus of the majority of galaxies in the present-day Universe --- is also a particularly suitable environment for the examination of one of the central processes of galaxian evolution: the presumptive merging of spirals to form ellipticals, which is in good part already over in rich clusters. We here propose to observe two spiral-dominated groups selected for their proximity, compactness, and X-ray brightness. Both have little or no Chandra data, which when obtained will clarify the presence, distribution, and amount of diffuse intragroup gas; examine its temperature and heavy element abundances as a clue to its origins; and relate the intragroup medium to the influences of individual galaxies.

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