XMM-Newton Proposal 02064301

Details XMM-Newton Proposal 02064301 XMM-Newton Proposal 02064301

Mar 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003xmm..prop..334m&link_type=abstract

XMM-Newton Proposal ID #02064301

Physics

Sdss-C400149.15-00., Xmm-Newton Proposal 02064301

Scientific paper

Using optical spectroscopy from the Sloan Digital Sky Survey (SDSS), we have identified a unique cluster of galaxies (at z 0.087) in which 50% of the galaxy population is spectroscopically classified as an AGN. This cluster represents the highest density of optically identified AGNs within the SDSS database. This AGN fraction is already 50 times higher than the ``typical'' fraction reported in Dressler et al. (1985), but is consistent with the emerging picture that all massive galaxies may possess an AGN. We will use XMM time to (1) confirm the high AGN fraction derived from the SDSS optical data; (2) Find obscured AGN which were missed optically; (3) Determine if such a high AGN fraction contributes to the X-ray gas properties of the cluster through feedback.

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