High Energy Neutrino Astronomy

Details High Energy Neutrino Astronomy High Energy Neutrino Astronomy

2011-02-17

arxiv.org/abs/1102.3591v1

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

Invited talk at Int. Conf. NEUTRINO 2010, Athens, Greece, 8 pages, 4 figures

Scientific paper

The short review of theoretical aspects of ultra high energy (UHE) neutrinos. The accelerator sources, such as Supernovae remnants, Gamma Ray Bursts, AGN etc are discussed. The top-down sources include Topological Defects (TDs), Superheavy Dark Matter (SHDM) and Mirror Matter. The diffuse fluxes are considered accordingly as that of cosmogenic and top-down neutrinos. Much attention is given to the cascade upper limit to the diffuse neutrino fluxes in the light of Fermi-LAT data on diffuse high energy gamma radiation. This is most general and rigorous upper limit, valid for both cosmogenic and top-down models. At present upper limits from many detectors are close to the cascade upper limit, and 5 yr IceCube upper limit will be well below it.

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