Strong radio AGN in the center of galaxy groups

Details Strong radio AGN in the center of galaxy groups Strong radio AGN in the center of galaxy groups

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009cxo..prop.2884s&link_type=abstract

Chandra proposal ID #11700638

Computer Science

Scientific paper

Outbursts of radio AGN have significant impact on structure formation and evolution. Radio feedback can quench cooling flows and modify cluster scaling relations. It has been suggested that a cool core is always required for strong radio AGN of BCGs. However, groups and clusters with strong central radio AGN previously observed by Chandra are almost all X-ray selected. We propose to observe a complete sample of groups with strong central radio AGN, optically selected from SDSS. Without X-ray selection criteria, this sample will test the ubiquitous connection of cool cores and strong radio AGN of BCGs. The selected radio AGN are expected to leave significant imprints on the surrounding ICM (e.g., cavities, shocks, reduced gas fraction and elevated entropy), which will also be examined.

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