论文标题
宇宙射线的全颗粒能谱从10 TEV到1 PEV，用HAWC测量
The all-particle energy spectrum of cosmic rays from 10 TeV to 1 PeV measured with HAWC
论文作者
论文摘要
HAWC天文台是一种空调探测器，旨在研究TEV区域的天体物理伽马射线和从1 TEV到1 PEV的能量间隔。对于宇宙射线研究，这种能量状态非常有趣，因为间接观察与直接测量重叠，这为两种技术中的实验性系统误差提供了交叉校准和研究的机会。可以帮助此目的的一个数量是宇宙射线的全颗粒能谱。在这项工作中，我们介绍了HAWC测量值的更新，内容涉及10 TEV和1 PEV之间的总宇宙射线能谱。该频谱是从2018年1月至2019年12月收集的将近两年的HAWC数据的展开分析中获得的。对于能源估计，我们采用了高能量的HADRONIC交互模型QGSJET-II-04。就像2017年出版的HAWC先前的作品一样，我们观察到TEV区域中有类似膝盖的特征。
The HAWC observatory is an air-shower detector, which is designed to study both astrophysical gamma-rays in the TeV region and galactic cosmic rays in the energy interval from 1 TeV to 1 PeV. This energy regime is quite interesting for cosmic ray research, since indirect observations overlap with direct measurements, which offers the opportunity for cross calibration and studies of experimental systematic errors in both techniques. One quantity that could help for this purpose is the all-particle energy spectrum of cosmic rays. In this work, we present an update of HAWC measurements on the total cosmic-ray energy spectrum between 10 TeV and 1 PeV. The spectrum was obtained from an unfolding analysis of almost two years of HAWC's data, which was collected from January, 2018 to December, 2019. For the energy estimation, we employed the high-energy hadronic interaction model QGSJET-II-04. As in a previous work of HAWC, published in 2017, we observed the presence of a knee-like feature in the region of tens of TeV.
