The Cluster Environment of Wide Angle Tail Radio Sources

Details The Cluster Environment of Wide Angle Tail Radio Sources The Cluster Environment of Wide Angle Tail Radio Sources

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009cfdd.confe..89d&link_type=abstract

Chandra's First Decade of Discovery, Proceedings of the conference held 22-25 September, 2009 in Boston, MA. Edited by Scott Wo

Computer Science

Clusters Of Galaxies

Scientific paper

Due to their frequent association with galaxy clusters and their connection to intracluster medium ram pressure, wide angle tail (WAT) radio sources have proven to be reliable tracers of high-density environments at a range of redshifts and may be used as probes of the cluster gas environment. In an effort to determine whether the X-ray properties of WAT clusters define them as a population, we have examined a sample of 14 WAT clusters observed with the Chandra X-ray Observatory, which are publicly available in the archive. Many of these clusters are found to display both merger signatures and evidence of cool gas coincident with the WAT host galaxy, suggesting a possible relation between the formation of WATs and the presence of perturbed cool cores. To examine if there is a distinction between the X-ray properties of WAT clusters and WAT-less clusters we compare the results with those of an identical analysis of an archival sample of cool core and non-cool core clusters in which WAT radio sources are not present. Temperature, abundance, pressure, density, and mass profiles, as well as two-dimensional maps of temperature are presented.

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