Reheating in Cooling Flows

Details Reheating in Cooling Flows Reheating in Cooling Flows

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001cxo..prop.1006p&link_type=abstract

Chandra Proposal ID #03800624

Computer Science

Chandra Proposal Id #03800624

Scientific paper

One of the most interesting early discoveries of Chandra and XMM, is the lack of really cool gas in cluster cooling flows. Since many cooling flows contain embedded radio galaxies, an attractive explanation holds that cooling flows fuel central AGN, which inject energy, reducing the gas cooling rate. Cooling flows are self-regulating. The same phenomenon has been seen in one of the first galaxy groups to be studied by Chandra. HCG 62 shows both a lack of cool (<0.5 keV) gas, and the unexpected presence of two lobe-like structures, probably related to the presence of a central radio source. We propose to target two bright group cooling flows known to contain no radio source. Comparison between these systems and HCG 62 will provide a conclusive test of the AGN reheating hypothesis.

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