EXTRAGALACTIC PLUS GALACTIC MODEL FOR ICECUBE NEUTRINO EVENTS

被引：61

作者：

Palladino, Andrea ^{[1
]}

Vissani, Francesco ^{[1
,2
]}

机构：

[1] Gran Sasso Sci Inst, Laquila, Italy

[2] LNGS, Laquila, Italy

来源：

ASTROPHYSICAL JOURNAL | 2016年 / 826卷 / 02期

关键词：

neutrinos; HIGH-ENERGY NEUTRINOS; COUNTERPARTS;

D O I：

10.3847/0004-637X/826/2/185

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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 E-v(-2) spectrum while the galactic component has a E-n(-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 km(3) neutrino telescopes located in the Northern Hemisphere and for gamma-ray telescopes aiming to measure events up to a few 100 TeV from the southern sky.

引用

页数：11

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