The X-Ray Cavity System and Radio Mini-Halo in the Galaxy Cluster RBS 797

Details The X-Ray Cavity System and Radio Mini-Halo in the Galaxy Cluster RBS 797 The X-Ray Cavity System and Radio Mini-Halo in the Galaxy Cluster RBS 797

Aug 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011scgg.conf....9d&link_type=abstract

"Structure in Clusters and Groups of Galaxies in the Chandra Era, 2011 Chandra Science Workshop held July 12-14, 2011. Edited by

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Scientific paper

We present a study of the cavity system in the galaxy cluster RBS 797 based on Chandra and VLA data. The Chandra data reveal a cool core and a higher metallicity along the cavity direction. This could be due to the AGN outburst, which lifts cool metal-rich gas from the center along the lobes orientations, as seen in other systems. We found indications of cool cavity rims surrounding the cavities. Likely, the 1.4 GHz radio emission, expanding, have displaced the gas compressing it into bright cool arms. Finally we show that the large scale radio emission detected with our new VLA observations may be classified as a radio mini-halo powered by the cooling flow (cf), as it nicely follows the trend P_{radio} vs. P_{cf} predicted by the re-acceleration model.

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