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Radio-loud AGN: is there a link between luminosity and cluster environment?

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arxiv 1305.1050 v1 pith:E6OG6CF4 submitted 2013-05-05 astro-ph.CO

Radio-loud AGN: is there a link between luminosity and cluster environment?

J. Ineson , J. H. Croston , M. J. Hardcastle , R. P. Kraft , D. A. Evans , M. Jarvis This is my paper
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keywords luminosityradioclustercorrelationenvironmentsradio-loudenvironmentfirst
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We present here the first results from the Chandra ERA (Environments of Radio-loud AGN) Large Project, characterizing the cluster environments of a sample of 26 radio-loud AGN at z ~ 0.5 that covers three decades of radio luminosity. This is the first systematic X-ray environmental study at a single epoch, and has allowed us to examine the relationship between radio luminosity and cluster environment without the problems of Malmquist bias. We have found a weak correlation between radio luminosity and host cluster X-ray luminosity, as well as tentative evidence that this correlation is driven by the subpopulation of low-excitation radio galaxies, with high-excitation radio galaxies showing no significant correlation. The considerable scatter in the environments may be indicative of complex relationships not currently included in feedback models.

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