Astronomy and Astrophysics – Astrophysics
Scientific paper
2005-11-17
Phys.Rev.D73:043004,2006
Astronomy and Astrophysics
Astrophysics
10 pages, 10 figures, submitted to PRD
Scientific paper
10.1103/PhysRevD.73.043004
The spatial clustering of galaxies in galaxy clusters implies that the background of infrared (IR) light in the intracluster medium (ICM) may exceed the universal background. Cosmic rays injected within the ICM propagate diffusively and at low enough energies are trapped there for cosmological times. The photopion production interactions of cosmic rays with the IR photons are responsible for the generation of neutrinos whose detection may shed some light on the origin and propagation of high energy cosmic rays in the universe. Here we discuss our calculations of the flux of neutrinos from single clusters as well as the contribution of photopion production in clusters of galaxies to the diffuse neutrino background.
Blasi Pasquale
de Marco Daniel
Hansen Patricia
Stanev Todor
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