Discovery of a High-Redshift (z=0.96) Cluster of Galaxies Using a FIRST Wide-Angle Tailed Radio Source

Abstract

Using a combination of near-infrared and optical photometry, along with multi-object spectroscopy, we have confirmed the existence of a high-redshift cluster of galxies at z = 0.96. The cluster was found using a wide-angle tailed radio source selected from the VLA FIRST survey as a cluster signpost. These types of radio sources are often found in clusters, and are thought to attain their C-shaped morphologies from the relative motion between the radio source host galaxy and the intracluster medium. We present optical/near-infrared color-magnitude diagrams which show a concentration of cluster galaxies in color space. We also include spectroscopic results obtained from the Keck II LRIS. Ten galaxies are confirmed at the cluster redshift, with a line-of-sight velocity dispersion of 530 +190/-90 km/s, typical of an Abell richness class 0 cluster. Using data from the ROSAT public archive, we limit the X-ray luminosity for the cluster to less than 3 x 10^{44} erg/s, consistent with the value expected from the L_X - sigma relation.

arXiv commentAJ, in press (tentatively April 2003); 17 pages, 6 figures

References in corpus (10)

• A New Method For Galaxy Cluster Detection I: The Algorithm
• The Evolution of Early-Type Galaxies in Distant Clusters
• An X-ray Selected Galaxy Cluster at z=1.26
• An IR-Selected Galaxy Cluster at z=1.27
• EVOLUTION OF IR-SELECTED GALAXIES IN Z~0.4 CLUSTERS
• The Intracluster Medium in z > 1 Galaxy Clusters
• Velocity Dispersions of CNOC Clusters and the Evolution of the Cluster Abundance
• The Environments of a Complete, Moderate-Redshift Sample of FIRST Bent-Double Radio Sources
• FIRST Bent-Double Radio Sources: Tracers of High-Redshift Clusters
• Radio galaxy selected clusters at high redshift and associated ERO overdensities

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