分类： 天文学 >> 天文学 提交时间： 2023-02-19
Xiangli Qian
Huiying Sun
Tianlu Chen
Danzengluobu
Youliang Feng
Qi Gao
Quanbu Gou
Yiqing Guo
Hongbo Hu
Mingming Kang
Haijin Li
Cheng Liu
Maoyuan Liu
Wei Liu
Bingqiang Qiao
Xu Wang
Zhen Wang
Guangguang Xin
Yuhua Yao
Qiang Yuan
摘要： The High Altitude Detection of Astronomical Radiation (HADAR) experiment is a refracting terrestrial telescope array based on the atmospheric Cherenkov imaging technique. It focuses the Cherenkov light emitted by extensive air showers through a large aperture water-lens system for observing very-high-energy-rays and cosmic rays. With the advantages of a large field-of-view (FOV) and low energy threshold, the HADAR experiment operates in a large-scale sky scanning mode to observe galactic sources. This study presents the prospects of using the HADAR experiment for the sky survey of TeV {\gamma}-ray sources from TeVCat and provids a one-year survey of statistical significance. Results from the simulation show that a total of 23 galactic point sources, including five supernova remnant sources and superbubbles, four pulsar wind nebula sources, and 14 unidentified sources, were detected in the HADAR FOV with a significance greater than 5 standard deviations ({\sigma}). The statistical significance for the Crab Nebula during one year of operation reached 346.0 {\sigma} and the one-year integral sensitivity of HADAR above 1TeV was ~1.3%-2.4% of the flux from the Crab Nebula.
分类： 天文学 >> 天文学 提交时间： 2023-02-19
Xiangli Qian
Huiying Sun
Tianlu Chen
Danzengluobu
Youliang Feng
Qi Gao
Quanbu Gou
Yiqing Guo
Hongbo Hu
Mingming Kang
Haijin Li
Cheng Liu
Maoyuan Liu
Wei Liu
Bingqiang Qiao
Xu Wang
Zhen Wang
Guangguang Xin
Yuhua Yao
Qiang Yuan
摘要： The High Altitude Detection of Astronomical Radiation (HADAR) experiment is a refracting terrestrial telescope array based on the atmospheric Cherenkov imaging technique. It focuses the Cherenkov light emitted by extensive air showers through a large aperture water-lens system for observing very-high-energy-rays and cosmic rays. With the advantages of a large field-of-view (FOV) and low energy threshold, the HADAR experiment operates in a large-scale sky scanning mode to observe galactic sources. This study presents the prospects of using the HADAR experiment for the sky survey of TeV {\gamma}-ray sources from TeVCat and provids a one-year survey of statistical significance. Results from the simulation show that a total of 23 galactic point sources, including five supernova remnant sources and superbubbles, four pulsar wind nebula sources, and 14 unidentified sources, were detected in the HADAR FOV with a significance greater than 5 standard deviations ({\sigma}). The statistical significance for the Crab Nebula during one year of operation reached 346.0 {\sigma} and the one-year integral sensitivity of HADAR above 1TeV was ~1.3%-2.4% of the flux from the Crab Nebula.
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