AGN in the Cosmic Web: A Proto-Cluster at z=2.3

Details AGN in the Cosmic Web: A Proto-Cluster at z=2.3 AGN in the Cosmic Web: A Proto-Cluster at z=2.3

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006cxo..prop.2247n&link_type=abstract

Chandra Proposal ID #08900627

Computer Science

Chandra Proposal Id #08900627

Scientific paper

Steidel et al. (2005) have recently reported the discovery of a highly significant overdensity of galaxies at z=2.3 in the field of the QSO HS 1700+643 (z=2.72). Galaxies in this structure have on average twice the age and mass of comparable field galaxies, consistent with their early formation and rapid evolution in a dense environment. Enhanced interactions and mergers in this environment should also result in a higher AGN fraction, and we have tentative evidence for this based on archival (50ks) Chandra data. Here we propose deeper (200ks) ACIS-I observations to reach Seyfert luminosities at the proto-cluster redshift, and establish definitively whether or not dense large-scale structure environments trigger enhanced AGN activity.

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