The Universe Viewed in Gamma-Rays 1 Investigating Galaxy Clusters through γ-ray Emission

  • Francesc Miniati
  • Published 2002

Abstract

We address the role of γ-ray astronomy in the investigation of nonthermal processes in the large scale structure of the universe. Based on EGRET upper limits on nearby galaxy clusters (GCs) we constrain the acceleration efficiency of CR electrons at intergalactic shocks to ≤ 1% than the shock ram pressure. That implies a contribution to the cosmic γ-ray… (More)

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