Galactic PeV neutrinos

被引：28
作者：
Gupta, Nayantara [1 ]
机构：
[1] Raman Res Inst, Bangalore 560080, Karnataka, India
来源：
ASTROPARTICLE PHYSICS | 2013年 / 48卷
关键词：
PeV neutrinos; Very high energy cosmic rays; GAMMA-RAYS; MILKY-WAY; ENERGY; RADIATION;
D O I：
10.1016/j.astropartphys.2013.07.003
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The IceCube experiment has detected two neutrinos with energies between 1 and 10 PeV. They might have originated from Galactic or extragalactic sources of cosmic rays. In the present work we consider hadronic interactions of the diffuse very high energy cosmic rays with the interstellar matter within our Galaxy to explain the PeV neutrino events detected in IceCube. We also expect PeV gamma ray events along with the PeV neutrino events if the observed PeV neutrinos were produced within our Galaxy in hadronic interactions. PeV gamma rays are unlikely to reach us from sources outside our Galaxy due to pair production with cosmic background radiation fields. We suggest that in future with simultaneous detections of PeV gamma rays and neutrinos it would be possible to distinguish between Galactic and extragalactic origins of very high energy neutrinos. (c) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：75 / 77
页数：3
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