13-18 December 2015
International Conference Centre Geneva
Europe/Zurich timezone

Escape model: CR composition and diffuse gamma-ray and neutrino backgrounds

17 Dec 2015, 17:15
Level 0, Room 4 (International Conference Centre Geneva)

Level 0, Room 4

International Conference Centre Geneva


Michael Kachelriess (NTNU)


I review the escape model for Galactic cosmic rays (CRs) that reproduce over a wide range of energies all available experimental data for individual groups of CR nuclei. Then I discuss how the extragalactic proton component derived within this model can be explained by astrophysical sources, especially blazars. The diffuse neutrino and γ-ray fluxes produced by these CR protons interacting with gas inside their sources contribute the dominant fraction of both the isotropic γ-ray background and of the extragalactic part of the astrophysical neutrino signal observed by IceCube.

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