Scrutinizing the AGN Heating Mechanism in Galaxy Clusters

Details Scrutinizing the AGN Heating Mechanism in Galaxy Clusters Scrutinizing the AGN Heating Mechanism in Galaxy Clusters

May 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aipc.1126..286m&link_type=abstract

SIMBOL-X: FOCUSING ON THE HARD X-RAY UNIVERSE: Proceedings of the 2nd International Simbol-X Symposium. AIP Conference Proceedi

Mathematics

Probability

Intracluster Matter, Cooling Flows, Galactic Nuclei, Circumnuclear Matter, And Bulges, X-Ray, Stellar Content And Populations, Morphology And Overall Structure

Scientific paper

We carried out an intensive study of the AGN heating-intracluster medium (ICM) cooling network by comparing various cluster parameters to the integrated radio luminosity of the central AGN, LR. This study is based on the HIFLUGCS sample comprising the 64 X-ray brightest galaxy clusters. Based on the central cooling time, tcool, we classify clusters with tcool<1 Gyr as strong cool-core (SCC) clusters, with 1 Gyr7.7 Gyr as non-cool-core (NCC) clusters. We find 48 out of 64 clusters contain cluster center radio sources (CCRS). Furthermore, we find that the probability of finding a CCRS increases from 45% to 67% to 100% for NCC, WCC, and SCC clusters, respectively.
We find that LR in SCC clusters depends strongly on the cluster scale such that more massive clusters harbor more powerful radio AGN. The same trend is observed between LR and the classical mass deposition rate, Ṁclassical. We also perform correlations of the luminosity for the brightest cluster galaxy, LBCG, in all 64 clusters. Using the near-infrared bulge luminosity-black hole mass relation to convert LBCG to supermassive black hole mass, MBH, we find a weak correlation between MBH and LR for SCC clusters, although with a few outliers. We find an excellent correlation of LBCG with the cluster virial mass, M500, and cluster luminosity, LX, for the entire sample, the SCC clusters showing a tighter trend in both the cases.

Affiliated with

Also associated with

No associations

Rating

Scrutinizing the AGN Heating Mechanism in Galaxy Clusters does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Scrutinizing the AGN Heating Mechanism in Galaxy Clusters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scrutinizing the AGN Heating Mechanism in Galaxy Clusters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1110194