AGN Feedback in the Cool Core Cluster A2597

Details AGN Feedback in the Cool Core Cluster A2597 AGN Feedback in the Cool Core Cluster A2597

Aug 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011scgg.conf...38o&link_type=abstract

"Structure in Clusters and Groups of Galaxies in the Chandra Era, 2011 Chandra Science Workshop held July 12-14, 2011. Edited by

Physics

Scientific paper

We present the deepest Chandra exposure yet of the central 100 kpc of Abell 2597. Our deeper data reveals the highly disturbed X-ray surface brightness distribution in more detail, including a 15 kpc long ``cold" (soft excess) filament. We also present evidence that one of the previously known ``ghost" cavities may be part of a much larger cavity, cospatial with low frequency radio emission, extending ˜ 25 kpc from the central to outer regions of the BCG. Temperature maps derived from X-ray spectral fitting show an excess of >3 keV gas aligned with the innermost rim of this cavity, consistent with a scenario in which the intracluster medium (ICM) is reheated as it rushes to refill the wake of the buoyantly rising bubble, as is expected in effervescent AGN feedback models.

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