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	GRB 170921A: Insight-HXMT detection
	Zhang, Y. F; Xiong, S. L; Liao, J. Y; Li, C. K; Li, X. B; Liu, C. Z; Li, X. F; Li, Z. W; Chang, Z; Lu, X. F
	2017-09-23
出处	GRB Coordinates Network
英文摘要	During the commissioning phase, at 2017-09-21T00:43:37.00 (T0),Insight-HXMT/HE detected GRB 170921C (trigger ID: HEB170921030)with a significance of 12 sigma in a routine search of the data,which is also detected by Fermi/GBM subthreshold trigger(trig time: 2017-09-21T00:43:37.18).The Insight-HXMT light curve mainly consists of a single pulsewith a duration (T90) of 1.2 s measured from T0-0.27 s.The 500-ms peak rate, measured from T0+0.06 s, is 1220.3 cnts/sec.The total counts from this burst is 1247.3 counts.URL_LC: http://www.hxmt.org/images/GRB/HEB170921030_lc.jpgAll measurements above are made with the CsI detectors operating in theregular mode with the energy range of about 80-800 keV (record energy).Only gamma-rays with energy greater than about 200 keV can penetratethe spacecraft and leave signals in the CsI detectors installed insideof the telescope.The analysis results presented above are preliminary;final results will be published elsewhere.Insight-HXMT is the first Chinese space X-ray telescope, which was fundedjointly by the China National Space Administration (CNSA) and the ChineseAcademy of Sciences (CAS). More information about it could be found at:http://www.hxmt.org/index.php/enhome .
内容类型	GCN
源URL	[http://ir.ihep.ac.cn/handle/311005/287552]
专题	硬X射线调制望远镜卫星 高能物理研究所_多学科研究中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Zhang, Y. F,Xiong, S. L,Liao, J. Y,et al. GRB 170921A: Insight-HXMT detection. 2017.

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