Strong shocks, cavities and AGN heating in galaxy groups

Details Strong shocks, cavities and AGN heating in galaxy groups Strong shocks, cavities and AGN heating in galaxy groups

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009cxo..prop.2910s&link_type=abstract

Chandra proposal ID #11800517

Physics

Scientific paper

Outbursts of SMBHs have significant impact on structure formation and evolution. Their imprint on ICM (e.g., shocks, cavities, 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 deep observations of two groups with strong radio AGN. Both have promising candidates of strong shocks from the existing short observations, which also reveals a cavity with little radio emission. The results may yield the first strong shock detection in groups and also fill the unexplored regime of the L_{radio} - L_{jet power} plane for groups. Joint VLA observations for one groups are also requested.

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