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arXiv · 1305.1050

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
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Abstract

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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J. Ineson, J. H. Croston, M. J. Hardcastle, R. P. Kraft, D. A. Evans, M. Jarvis. 2013-05-05. Radio-loud AGN: is there a link between luminosity and cluster environment?. https://doi.org/10.1088/0004-637x%2F770%2F2%2F136

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