Bent-Double Radio Galaxies: Signposts for the High Density Universe

Details Bent-Double Radio Galaxies: Signposts for the High Density Universe Bent-Double Radio Galaxies: Signposts for the High Density Universe

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999cxo..prop..128h&link_type=abstract

Chandra Proposal ID #01800677

Computer Science

Chandra Proposal Id #01800677

Scientific paper

Bent-double radio galaxies, distorted by their interaction with a dense intergalactic medium, are unambiguous tracers of the high density Universe. Our VLA FIRST survey allows us to detect and map these sources to high redshifts for the first time. From a sample of several hundred FIRST bent doubles, we have selected ten for followup at Keck and have found that at least eight reside in clusters with redshifts from 0.35-0.85. This new cluster selection technique preferentially finds regions with dense intracluster gas, making them ideal targets for complementing optical- and X-ray-selected clusters in the construction of the L, T, and M functions for clusters at high z.

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