2008 Supplement: Frascati Workshop 2007 / Kneiske

Gamma-Ray Background: A Review

T. M. Kneiske

Abstract

The gamma-ray background is still a subject under great debate. All
phenomena in the universe emitting gamma-rays can contribute directly

as diffuse emission or as an isotropic component from unresolved point
sources. The question of the origin of the extragalactic component
cannot be answered without determining the galactic emission. To discuss
in detail all models resulting in gamma-ray background contributions is
far beyond the scope of this paper. Therefore the focus will be on
recent publications on the extragalactic high energy (>100 MeV) part
of the gamma-ray background.

Keywords


gamma-rays: diffuse emission observations theory galaxies: starburst active luminosity function

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