Prospective Study on Observations of γ-Ray Sources in the Galaxy Using the HADAR Experiment

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; Yi Zhang

arXiv · 2209.11458

Prospective Study on Observations of γ-Ray Sources in the Galaxy Using the HADAR Experiment

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Abstract

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 γ-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 (σ). The statistical significance for the Crab Nebula during one year of operation reached 346.0 σ 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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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, Yi Zhang. 2022-09-23. Prospective Study on Observations of γ-Ray Sources in the Galaxy Using the HADAR Experiment. https://arxiv.org/abs/2209.11458

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