Gamma-ray emission associated with Cluster-scale AGN Outbursts

Details Gamma-ray emission associated with Cluster-scale AGN Outbursts Gamma-ray emission associated with Cluster-scale AGN Outbursts

2007-01-02

arxiv.org/abs/astro-ph/0701033v3

MNRAS 382, 466-472 (2007)

Astronomy and Astrophysics

Astrophysics

8 pages, 4 figures, accepted by MNRAS

Scientific paper

10.1111/j.1365-2966.2007.12395.x

Recent observations have revealed the existence of enormously energetic ~10^61 erg AGN outbursts in three relatively distant galaxy clusters. These outbursts have produced bubbles in the intra-cluster medium, apparently supported by pressure from relativistic particles and/or magnetic fields. Here we argue that if > GeV particles are responsible then these particles are very likely protons and nuclei, rather than electrons, and that the gamma-ray emission from these objects, arising from the interactions of these hadrons in the intra-cluster medium, may be marginally detectable with instruments such as GLAST and HESS.

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