XMM study of the interplay between the intra-group medium and galaxies

Mathematics – Logic

Scientific paper

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Cosmology, Extragalactic Deep Fields And Area Surveys, 2Pigg_M1510, 2Pigg_M1440, 2Pigg_1614, 2Pigg_M1466, 2Pigg_1783, 2Pigg_M1514, 2Pigg_M1572, 2Pigg_M1385, 2Pigg_1471, 2Pigg_1641, 2Pigg_1735, 2Pigg_1799

Scientific paper

Current models of galaxy evolution rely critically on AGN and SN feedback processes. However, these ideas have not been fully tested, particularly in the intra-group medium (IGM), the environment most commonly experienced by galaxies. For this purpose we propose to use XMM-Newton to study the thermodynamic properties of the IGM (via its diffuse X-ray emission), which retains a fossil record of the energy released by past star formation and AGN activity, for an unbiased sample of 23 groups with fully determined galaxy population and AGN properties. The 23 target groups are selected from our Zurich ENvironmental Survey, for which we have optical spectroscopic, photometric and morphological information as well as HI mass content.

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