XMM-Newton Proposal 02021903

Details XMM-Newton Proposal 02021903 XMM-Newton Proposal 02021903

Mar 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003xmm..prop..118o&link_type=abstract

XMM-Newton Proposal ID #02021903

Physics

Eso 351-G021, Ngc 57, Ic 1531, Xmm-Newton Proposal 02021903

Scientific paper

The high densities and low velocity dispersions seen in galaxy groups can lead to the formation of `fossil groups', in which all the major galaxies have merged to form one giant elliptical. Very few of these objects have been observed, and almost all are at moderate redshift, making detailed analysis difficult. We have defined a sample of fossil candidates at low redshift, and propose to use XMM-Newton to characterise their X-ray halos. High resolution observations of these targets will allow us to test our understanding of their nature and origins, and to measure the properties of what may be the oldest undisturbed galaxy systems in the Universe.

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