GCN Circular 45188
Subject
GRB 260714B: Insight-HXMT/HE detection
Event
Date
2026-07-19T15:10:41Z (a month ago)
From
Xinghao Luo at IHEP <2952704891@qq.com>
Via
Web form
Xing-Hao Luo, Chen-Wei Wang, Chao Zheng, and Shao-Lin Xiong (IHEP) report on behalf of the Insight-HXMT team:
At 2026-07-14T18:23:29.500 (T0), Insight-HXMT/HE detected the GRB 260714B, which is also detected by Fermi/GBM (Fermi GBM Team, GCN #45158) AstroSat CZTI (U. Pathak et.al., GCN#45163), GECAM-B (Yang-Zhao Ren et.al., #45174) and SVOM/GRM (Yang-Zhao Ren et.al., GCN#45176).
The Insight-HXMT/HE light curve mainly consists of multiple pulses with a T90 of 10.88 +0.02/-0.04 s. The 1s peak rate, measured from T0+0.13 s, is 8893 cnts/sec. Insight-HXMT/HE detected a total of 36543 counts from this burst.
The HXMT/HE light curve can be found here:
https://www.bursthub.cn/gcn/2026/hxmtgrb260714B.png
All measurements above are made with the CsI detectors of Insight-HXMT/HE operating in the regular mode with the energy range of about 60-900 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://hxmten.ihep.ac.cn/