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	HAWC-190916A: Upper limits from Insight-HXMT/HE observations
	Xiao, S; Zheng, Y. G; Cai, C; Luo, Q; Yi, Q. B; Huang, Y; Li, C. K; Li, G; Li, X. B; Liao, J. Y
	2019-09-18
出处	GRB Coordinates Network
英文摘要	Insight-HXMT was taking data normally around the trigger time (T0=2019-09-16T01:14:19 UTC) of HAWC-190916A event (GCN #25766), which was monitored without any occultation by the Earth. Within T0 +/- 100 s, no significant excess events (SNR > 3 sigma) are found in a search of the Insight-HXMT/HE raw light curves. Assuming the counterpart GRB with three typical GRB Band spectral models, two typical duration timescales (1 s, 10 s) from the center of the position of the alert is (RA=321.84 deg, DEC=30.97 deg), the 5-sigma upper-limits fluence (0.2 - 5 MeV, incident energy) are reported below: Band model 1 (alpha=-1.9, beta=-3.7, Ep=70 keV): 1 s: 3.1e-07 erg cm^-2 10 s: 1.2e-06 erg cm^-2 Band model 2 (alpha=-1.0, beta=-2.3, Ep=230 keV): 1 s: 3.9e-07 erg cm^-2 10 s: 1.5e-06 erg cm^-2 Band model 3 (alpha=-0.0, beta=-1.5, Ep=1000 keV): 1 s: 3.0e-07 erg cm^-2 10 s: 1.4e-06 erg cm^-2 All measurements above are made with the CsI detectors operating in the regular mode with the energy range of about 80-800 keV (deposited energy). Only gamma-rays with energy greater than about 200 keV can penetrate the spacecraft and leave signals in the CsI detectors installed inside of the spacecraft. Insight-HXMT is the first Chinese space X-ray telescope, which was funded jointly by the China National Space Administration (CNSA) and the Chinese Academy of Sciences (CAS). More information could be found at: http://www.hxmt.org.
内容类型	GCN
源URL	[http://ir.ihep.ac.cn/handle/311005/287669]
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	Xiao, S,Zheng, Y. G,Cai, C,et al. HAWC-190916A: Upper limits from Insight-HXMT/HE observations. 2019.

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