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	GRB 170826B: Insight-HXMT detection
	Li, Z. W; Liao, J. Y; Li, C. K; Li, X. B; Xiong, S. L; Liu, C. Z; Li, X. F; Chang, Z; Lu, X. F; Zhao, J. L
	2017-08-29
出处	GRB Coordinates Network
英文摘要	During the commissioning phase, at 2017-08-26T19:38:58.00 (T0),Insight-HXMT detected GRB 170826B (trigger ID: HEB170826818)in a routine search of the data, which was also observed byFermi/GBM (Poolakkil et al, GCN Circ.21717).The Insight-HXMT light curve consists of multiple pulseswith a duration (T90) of 10.12 s measured from T0-0.46s.The 500-ms peak rate, measured from T0-0.46 s, is 2948.6 cnts/sec.The total counts from this burst is 23373.3 counts.URL_LC: http://www.hxmt.org/images/GRB/HEB170826818_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 time-averaged spectrum from T0-1.00 to T0+9.00 s isadequately fit by a Power Law model with spectral index = -2.03 +/- 0.04 . The energy fluence is (1.46 +/- 0.06)E-05 erg/cm^2 in 200 - 5000 keV in this time interval.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/311005/287546]
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	Li, Z. W,Liao, J. Y,Li, C. K,et al. GRB 170826B: Insight-HXMT detection. 2017.

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