Archaeology of Fossil Galaxy Groups

Details Archaeology of Fossil Galaxy Groups Archaeology of Fossil Galaxy Groups

Jul 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005hst..prop10558w&link_type=abstract

HST Proposal ID #10558

Computer Science

Hst Proposal Id #10558 Galaxies

Scientific paper

Fossil groups are concentrations of dark mater with masses and x-ray luminosities comparable to those of an entire group of galaxies, but whose light is dominated by a single, isolated, large elliptical galaxy. The origin of these systems remains a puzzle: they may be the end products of complete merging of galaxies within once normal groups, or they might originate from a very unusual galaxy luminosity function in those regions that inhibits the formation of moderate-sized galaxies. We propose the first study of the globular cluster populations of the dominant elliptical galaxies in fossil galaxy groups, which will provide important new insights into their origin.

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