Searching for AGN-driven Shocks in Galaxy Clusters

Details Searching for AGN-driven Shocks in Galaxy Clusters Searching for AGN-driven Shocks in Galaxy Clusters

2006-07-03

arxiv.org/abs/astro-ph/0607021v1

Astrophys.J.647:L5-L8,2006

Astronomy and Astrophysics

Astrophysics

4 pages, 1 figure, uses REVTeX4 + emulateapj.cls and apjfonts.sty. Accepted on ApJL

Scientific paper

10.1086/507270

Shocks and blastwaves are expected to be driven driven into the intracluster medium filling galaxy groups and clusters by powerful outbursts of active galactic nuclei or quasars in the member galaxies; the first footprints of shock fronts have been tentatively traced out with X-ray imaging. We show how overpressures in the blasts behind the shock can prove the case and also provide specific marks of the nuclear activity: its strength, its current stage, and the nature of its prevailing output. We propose to detect these marks with the aimed pressure probe constituted by the resolved Sunyaev-Zel'dovich effect. We compute and discuss the outcomes to be expected in nearby and distant sources at different stages of their activity.

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