Shocks and blast waves are conceivably 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.
|Titolo:||Searching for AGN-driven Shocks in Galaxy Clusters|
|Autori:||Cavaliere, A.; Lapi, A.|
|Data di pubblicazione:||2006|
|Fascicolo:||1, Part 2|
|Digital Object Identifier (DOI):||10.1086/507270|
|Appare nelle tipologie:||1.1 Journal article|