Early-type galaxy evolution in groups: the intriguing case of NGC 4756

Details Early-type galaxy evolution in groups: the intriguing case of NGC 4756 Early-type galaxy evolution in groups: the intriguing case of NGC 4756

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007xmm..prop...50t&link_type=abstract

XMM-Newton Proposal ID #05516001

Computer Science

Galaxies, Galactic Surveys, Ngc 4756, Xmm-Newton Proposal Id #05516001

Scientific paper

Any understanding of the evolution of groups and their members, which ultimately means the evolution of all galaxies, cannot be complete without detailed studies at X-ray wavelengths, that probe the properties of the IGM and the interplay between galaxies, ISM and IGM. We propose here to observe an intriguing environment representative of a unique accretion scenario, possibly resulting from parallel evolution of two distinct subcondensations associated with NGC 4756. We aim at 1) quantifying when and how sub-structures and early-type members evolve their own X-ray halo and 2) determining the role of the hot IGM in regulating galaxy activity (star formation and/or AGN).

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