The Cluster Environments of Old Galaxies in Quasar Fields at Z ~ 1.5

Details The Cluster Environments of Old Galaxies in Quasar Fields at Z ~ 1.5 The Cluster Environments of Old Galaxies in Quasar Fields at Z ~ 1.5

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001cxo..prop.1004s&link_type=abstract

Chandra Proposal ID #03800610

Physics

Chandra Proposal Id #03800610

Scientific paper

Current direct X-ray surveys for clusters of galaxies find essentially no objects at z > 1. One can seek higher-redshift clusters in pointed observations of radio source fields, but powerful radio sources are found not only in rich clusters, but in a wide range of environments. We propose that one can "stack the deck" by selecting radio-loud QSO fields at high redshift that also show galaxies at the quasar redshift that both are luminous and formed virtually their entire stellar populations early in the history of the Universe. Such a selection favors regions where galaxy evolution has proceeded most rapidly, and thus likely the regions of strongest overdensity. We propose to investigate the X-ray properties of 4 quasar fields for which we have identified such galaxies.

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