Extragalactic Jets as Probes of Distant Clusters of Galaxies and the Clusters Occupied by Bent Radio AGN (COBRA) Survey

Abstract

We are conducting a large survey of distant clusters of galaxies using radio sources with bent jets and lobes as tracers. These radio sources are driven by AGN and achieve their bent morphologies through interaction with the surrounding gas found in clusters of galaxies. Based on low-redshift studies, these types of sources can be used to identify clusters very efficiently. We present initial results from our survey of 653 bent-double radio sources with optical hosts too faint to appear in the SDSS. The sample was observed in the infrared with Spitzer, and it has revealed $\sim$200 distant clusters or proto-clusters in the redshift range $z\sim 0.7-3.0$. The sample of bent-doubles contains both quasars and radio galaxies enabling us to study both radiative and kinetic mode feedback in cluster and group environments at a wide range of redshifts.

arXiv commentTo appear in the Proceedings of the IAU Symposium No. 313: "Extragalactic jets from every angle," Galapagos, Ecuador, 15-19 September 2014, F. Massaro, C. C. Cheung, E. Lopez, and A. Siemiginowska (Eds.), Cambridge University Press

References in corpus (17)

• The Seventh Data Release of the Sloan Digital Sky Survey
• Observational Evidence of AGN Feedback
• Constraints on dark energy from Chandra observations of the largest relaxed galaxy clusters
• The origin of cold fronts in the cores of relaxed galaxy clusters
• Simulations of AGN feedback in galaxy clusters and groups: impact on gas fractions and the Lx-T scaling relation
• MHD Simulations of AGN Jets in a Dynamic Galaxy Cluster Medium
• Galaxy Cluster Environments of Radio Sources
• Deep Chandra Observations of the Extended Gas Sloshing Spiral in A2029
• The Environments of a Complete, Moderate-Redshift Sample of FIRST Bent-Double Radio Sources
• FIRST Bent-Double Radio Sources: Tracers of High-Redshift Clusters
• The Lx-Tvir relation in galaxy clusters: Effects of radiative cooling and AGN heating
• Discovery of a High-Redshift (z=0.96) Cluster of Galaxies Using a FIRST Wide-Angle Tailed Radio Source
• Comparing Pattern Recognition Feature Sets for Sorting Triples in the FIRST Database
• The Merger Environment of the WAT Hosting Cluster Abell 562
• Chandra Observation of the Cluster Environment of a WAT Radio Source in Abell 1446
• Galaxy Clusters in the IRAC Dark Field I: Growth of the red sequence
• An Examination of the Optical Substructure of Galaxy Clusters Hosting Radio Sources

Cited by in corpus (1)

• Galaxy clusters and groups in the ALHAMBRA Survey