A Northern Sky Survey for Point-Like Sources of EeV Neutral Particles with the Telescope Array Experiment

A Northern Sky Survey for Point-Like Sources of EeV Neutral Particles with the Telescope Array Experiment
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利用望远镜阵列实验对北方天空观测 EeV 中性粒子点状源

DOI:
10.1088/0004-637x/804/2/133
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发表时间:
2015
期刊:
The Astrophysical Journal
影响因子:
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通讯作者:
et al.
et al.
中科院分区:
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文献类型:
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作者:
R. U. Abbasi;K. Kawata;et al.

文献摘要

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我们报告的搜索稳定的点状源的中性粒子约10 - 18 eV之间的2008年和2013年5月与闪烁体SD的望远镜阵列实验。我们发现在北方的天空中,总体上没有明显的超过0.5 EeV的点状过剩。随后,我们还寻找与费米明亮的银河系源的巧合。在统计不确定度范围内未发现显著一致性。因此,我们对中子通量设定了一个上限,对应于0.07 km− 2 yr− 1的平均通量,
We report on the search for steady point-like sources of neutral particles around 10 18 eV between 2008 and 2013 May with the scintillator SD of the Telescope Array experiment. We found overall no significant point-like excess above 0.5 EeV in the northern sky. Subsequently, we also searched for coincidence with the Fermi bright Galactic sources. No significant coincidence was found within the statistical uncertainty. Hence, we set an upper limit on the neutron flux that corresponds to an averaged flux of 0.07 km− 2 yr− 1 for