[vsnet-grb-info 25465] GRB 200412B: Insight-HXMT/HE detection
GCN Circulars
gcncirc at capella2.gsfc.nasa.gov
Mon Apr 13 18:41:48 JST 2020
TITLE: GCN CIRCULAR
NUMBER: 27565
SUBJECT: GRB 200412B: Insight-HXMT/HE detection
DATE: 20/04/13 09:40:36 GMT
FROM: YaoGuang Zheng at IHEP <zhengyg at ihep.ac.cn>
Y. G. Zheng, C. Cai, Y. F. Du, W. C. Xue,
Q. Luo, S. Xiao, Q. B. Yi, Y. Huang, C. K. Li, G. Li,
X. B. Li, J. Y. Liao, S. L. Xiong,C. Z. Liu,
X. F. Li, Z. W. Li, Z. Chang, A. M. Zhang, Y. F. Zhang,
X. F. Lu, C. L. Zou (IHEP), Y. J. Jin, Z. Zhang (THU),
T. P. Li (IHEP/THU), F. J. Lu, L. M. Song,
M. Wu, Y. P. Xu, S. N. Zhang (IHEP),
report on behalf of the Insight-HXMT team:
At 2020-04-12T09:08:45.80 (T0), Insight-HXMT/HE detected
GRB 200412B (trigger ID: HEB200412381) in a routine search of the data,
which also triggered Fermi/GBM (GCN #27547).
The Insight-HXMT/HE light curve mainly consists of a single
pulse with a duration (T90) of 5.50 s measured from T0+0.05 s.
The 1-ms peak rate, measured from T0+4.28 s, is 14908 cnts/sec.
The total counts from this burst is 25230 counts.
URL_LC: http://twiki.ihep.ac.cn/pub/HXMT/GRBList/HEB200412381_lc.jpg
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 telescope.
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 about it could be found at:
http://www.hxmt.org.
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