[vsnet-grb-info 21939] GRB 190401A: Insight-HXMT/HE detection
GCN Circulars
gcncirc at capella2.gsfc.nasa.gov
Mon Apr 1 22:54:55 JST 2019
TITLE: GCN CIRCULAR
NUMBER: 24038
SUBJECT: GRB 190401A: Insight-HXMT/HE detection
DATE: 19/04/01 13:52:10 GMT
FROM: Qi Luo at IHEP <luoqi at ihep.ac.cn>
Q. Luo, C. K. Li, X. B. Li, G. Li, J. Y. Liao, S. L. Xiong,
C. Z. Liu, X. F. Li, Z. W. Li, Z. Chang, X. F. Lu,
A. M. Zhang, Y. F. Zhang, 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 2019-04-01T03:20:21.000 (T0), the Insight-HXMT/HE detected
GRB 190401A(trigger ID: HEB190401139) in a routine search of the data,
which was also triggered by INTEGRAL(trigger_num:8247)
and Fermi/GBM (trigger_num:575781625).
The Insight-HXMT/HE light curve mainly consists of one
pulse with a duration (T90) of 23.50 s measured from T0-1.64 s.
The 1-ms peak rate, measured from T0+0.690 s, is 1193 cnts/sec.
The total counts from this burst is 11740 counts.
URL_LC: http://www.hxmt.org/images/GRB/HEB190401139_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 (record 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
fundedjointly 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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