2004/01/08 by Stefano Gabici, Gabici, Stefano
Physics and Astronomy · #Astrophysics (astro-ph) #FOS: Physical sciences #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/0401110
6 pages, 4 eps figures. To appear in the proceedings of "Modelling the Intergalactic and Intracluster Media", Vulcano Island, October 1-4, 2003
arxiv created 2004/01/08 · arxiv updated 2009/12/01
Particle acceleration is expected to take place at shocks that form during the process of large scale structure formation. Electrons accelerated at such shocks can upscatter a small fraction of the photons in the cosmic microwave background up to the gamma ray band. Here we make predictions about the detectability of the γ--ray emission from forming clusters of galaxies with future GeV and TeV gamma ray telescopes. We also estimate the contribution of these sources to the extragalactic diffuse gamma ray background.