Cavities, strong shocks and AGN heating in galaxy groups

Details Cavities, strong shocks and AGN heating in galaxy groups Cavities, strong shocks and AGN heating in galaxy groups

Oct 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009xmm..prop..105s&link_type=abstract

XMM-Newton Proposal ID #06527203

Physics

Active Galactic Nuclei, Quasars, Bl-Lac Objects, X-Ray Background, Pks 1422+26, Pks 1422+26, Ugc 2755

Scientific paper

Outbursts of SMBHs have significant impact on structure formation and evolution. Their imprint on ICM (cavities, shocks and elevated entropy) provides an historical chronicle of the SMBH activity. However, AGN heating has not been well studied in groups (especially for groups hosting strong radio AGN), although it should affect the group gas much more than the cluster gas. We propose XMM observations of two groups with strong radio AGN. Both have clear features indicative of heating from the radio AGN in short XMM or Chandra exposures. The results will fill the little explored regime of the L_radio - L_power plane for groups. One galaxy also has a mysterious emission line in the spectrum of its AGN, which needs to be tested and studied with deeper data.

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