Expectations for high energy diffuse galactic neutrinos for different cosmic ray distributions

被引：23
作者：
Pagliaroli, Giulia [1 ]
Evoli, Carmelo [1 ]
Villante, Francesco Lorenzo [2 ,3 ]
机构：
[1] Gran Sasso Sci Inst, I-67100 Laquila, AQ, Italy
[2] Univ Aquila, Dept Chem & Phys, I-67100 Laquila, Italy
[3] Ist Nazl Fis Nucl, Lab Nazl Gran Sasso, I-67100 Assergi, AQ, Italy
来源：
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2016年 / 11期
关键词：
neutrino astronomy; ultra high energy photons and neutrinos; neutrino experiments; ICECUBE; CONSTRAINTS; TELESCOPE; EMISSION; SEARCHES; SPECTRA; EVENTS; MODEL; FLUX; SKY;
D O I：
10.1088/1475-7516/2016/11/004
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The interaction of cosmic rays with the gas contained in our Galaxy is a guaranteed source of diffuse high energy neutrinos. We provide expectations for this component by considering different assumptions for the cosmic ray distribution in the Galaxy which are intended to cover large uncertainty in cosmic ray propagation models. We calculate the angular dependence of the diffuse galactic neutrino flux and the corresponding rate of High Energy Starting Events in IceCube by including the effect of detector angular resolution. Moreover we discuss the possibility to discriminate the galactic component from an isotropic astrophysical flux. We show that a statistically significant excess of events from the galactic plane in present IceCube data would disfavour models in which the cosmic ray density is uniform, thus bringing relevant information on the cosmic ray radial distribution.
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页数：14
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