The hypothesis that high-energy cosmic neutrinos are power law distributed is critically analyzed. We propose a model with two components that better explains the observations. The extragalactic component of the high-energy neutrino flux has a canonical n - E 2 spectrum while the galactic component has a n - E 2.7 spectrum; both of them are significant. This model has several implications, which can be tested by IceCube and ANTARES over the next several years. Moreover, the existence of a diffuse component, close to the Galactic plane and that yields (20–30)% of IceCube’s events, is interesting for the future km3 neutrino telescopes located in the Northern He
Extragalactic plus Galactic model for IceCube neutrino events
Vissani F
2016-01-01
Abstract
The hypothesis that high-energy cosmic neutrinos are power law distributed is critically analyzed. We propose a model with two components that better explains the observations. The extragalactic component of the high-energy neutrino flux has a canonical n - E 2 spectrum while the galactic component has a n - E 2.7 spectrum; both of them are significant. This model has several implications, which can be tested by IceCube and ANTARES over the next several years. Moreover, the existence of a diffuse component, close to the Galactic plane and that yields (20–30)% of IceCube’s events, is interesting for the future km3 neutrino telescopes located in the Northern He| File | Dimensione | Formato | |
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2016_AstrophysJ_826_Palladino.pdf
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