Observe Gamma-Rays and Neutrinos Associated with Ultra-High Energy Cosmic Rays
Observe Gamma-Rays and Neutrinos Associated with Ultra-High Energy Cosmic Rays
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观察与超高能宇宙射线相关的伽马射线和中微子
DOI：
10.3390/universe8110560
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发表时间：
2022
期刊：
影响因子：
2.9
通讯作者：
Zhuo Li
中科院分区：
文献类型：
--
作者：
Qinyuan Zhang;Xishui Tian;Zhuo Li
IceCube测量的扩散中微子通量与Waxman-Bahcall束缚相当，这表明超高能宇宙线（UHECR）与扩散高能中微子有共同起源的可能性。我们提出了高能量的伽玛射线和/或中微子观测对UHECR的到达方向，以寻找源和测试这种可能性。我们计算了γ射线/中微子源的探测概率，发现如果γ射线或中微子望远镜的灵敏度为10 - 12 erg cm-2 s-1，源数密度为10 - 5 Mpc-3，则每个UHECR>10 EeV的平均概率为10%。未来对UHECR的伽马射线和中微子观测，例如，LHAASO-WCDA、CTA、IceCube/Gen 2鼓励限制UHECR源的密度，甚至识别UHECR源。
IceCube measures a diffuse neutrino flux comparable to the Waxman-Bahcall bound, which suggests the possibility that the ultra-high energy cosmic rays (UHECRs) have a common origin with diffuse high energy neutrinos. We propose high energy gamma-ray and/or neutrino observations toward the arrival directions of UHECRs to search for the sources and test this possibility. We calculate the detection probability of gamma-ray/neutrino sources, and find that the average probability per UHECR of >10 EeV is ∼10% if the sensitivity of the gamma-ray or neutrino telescope is ∼10−12 erg cm−2 s−1 and the source number density is ∼10−5 Mpc−3. Future gamma-ray and neutrino observations toward UHECRs, e.g., by LHAASO-WCDA, CTA, IceCube/Gen2, are encouraged to constrain the density of UHECR sources or even identify the sources of UHECRs.
影响因子：
56.9
作者：
Aartsen, M. G.;Abbasi, R.;Zoll, M.
通讯作者：
Zoll, M.