LIGO/Virgo S190814bv: Upper limits from Insight-HXMT/HE observations | |
Cai, C; Yi, Q. B; Xiao, S; Luo, Q; Li, C. K; Li, X. B; Li, G; Liao, J. Y; Xiong, S. L; Liu, C. Z | |
2019-08-16 | |
出处 | GRB Coordinates Network |
英文摘要 | Insight-HXMT was taking data normally around the reported LIGO/Virgo S190814bv event (GCN #25324), trigger time 2019-08-14T21:10:39.013 UTC. At T0, about 100% of the LIGO localization region was covered by the Insight-HXMT without occultationby 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 GW counterpart GRB with three typical GRB Band spectral models, two typical duration timescales (1 s, 10 s) from the center of the LIGO-Virgo location probability map (RA=15 deg, DEC=-20 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: 1.2e-07 erg cm^-2 10 s: 8.5e-07 erg cm^-2 Band model 2 (alpha=-1.0, beta=-2.3, Ep=230 keV): 1 s: 1.7e-07 erg cm^-2 10 s: 1.2e-06 erg cm^-2 Band model 3 (alpha=-0.0, beta=-1.5, Ep=1000 keV): 1 s: 3.6e-07 erg cm^-2 10 s: 2.5e-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/311005/287662] ![]() |
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 | Cai, C,Yi, Q. B,Xiao, S,et al. LIGO/Virgo S190814bv: Upper limits from Insight-HXMT/HE observations. 2019. |
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