Hot Gas Enrichment by Dwarf Galaxies in the 5044 Galaxy Group

Occasionally, as in the 5044 galaxy group, the hierarchical process of galaxyformation results in a single, centrally located dominant giant ellipticalsurrounded by unmerged dwarf galaxies. The integrated Type II and Ia supernovaactivity in the 5044 group dwarf galaxies is recorded in the abundances of Fe,Si, and S in the hot intragroup gas which can be measured with novel precisionusing XMM. The history of galaxy formation and evolution will then be recoveredfrom XMM data using theoretical gas dynamical models. The NGC 5044 group is ofspecial interest since, unlike rich clusters, dwarf galaxies provide most (2/3)of the optical light and hot gas enrichment. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]