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arXiv · 2203.00878

The First Insight-HXMT Gamma-Ray Burst Catalog: The First Four Years

Abstract

The Hard X-ray Modulation Telescope (Insight-HXMT), is China's first X-ray astronomy satellite launched on June 15, 2017. The anti-coincidence CsI detectors of the High Energy X-ray telescope (HE) onboard Insight-HXMT could serve as an all-sky gamma-ray monitor in about 0.2-3 MeV. In its first four years of operation, Insight-HXMT has detected 322 Gamma-Ray Bursts (GRBs) by offline search pipeline including blind search and targeted search. For the GOLDEN sample of Insight-HXMT GRBs, joint analyses were performed with other GRB missions, including Fermi Gamma-ray Burst Monitor (Fermi/GBM), Swift Burst Alert Telescope (Swift/BAT) and Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor (GECAM). It shows that Insight-HXMT can provide better constraint on GRB spectrum at higher energy band. The properties of Insight-HXMT GRBs are reported in detail, including their trigger time, duration, spectral parameters, peak fluxes of different time scales and fluence. This catalog is an official product of the Insight-HXMT GRB team.

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Xin-Ying Song, Shao-Lin Xiong, Shuang-Nan Zhang, Cheng-Kui Li, Xiao-Bo Li, Yue Huang, Cristiano Guidorzi, Filippo Frontera, Cong-Zhan Liu, Xu-Fang Li, Gang Li, Jin-Yuan Liao, Ce Cai, Qi Luo, Shuo Xiao, Qi-Bin Yi, Yao-Guang Zheng, Deng-Ke Zhou, Jia-Cong Liu, Wang-Chen Xue, Yan-Qiu Zhang, Chao Zheng, Zhi Chang, Zheng-Wei Li, Xue-Feng Lu, Ai-Mei Zhang, Yi-Fei Zhang, Yong-Jie Jin, Ti-Pei Li, Fang-Jun Lu, Li-Ming Song, Mei Wu, Yu-Peng Xu, Xiang Ma, Ming-Yu Ge, Shu-Mei Jia, Bing Li, Jian-Yin Nie, Ling-Jun Wang, Juan Zhang, Shi-Jie Zheng, Xue-Juan Yang, Rong-Jia Yang. 2022-03-02. The First Insight-HXMT Gamma-Ray Burst Catalog: The First Four Years. https://doi.org/10.3847/1538-4365/ac4d22

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