GCN Circular 45468
Subject
GRB 260825A: GECAM-B observation
Event
Date
2026-08-30T09:38:29Z (3 days ago)
From
jy_luo2002@163.com
Via
Web form
Jin-Ye Luo, Chen-Wei Wang, Yue Wang, Hao-Xuan Guo, Shao-Lin Xiong (IHEP) report on behalf of GECAM team:
GECAM-B was triggered on-ground by GRB 260825A at 2026-08-25T13:07:19.000 UTC (denoted as T0), which is also detected by Fermi/GBM (Fermi GBM team, GCN #45439) and AstroSat/CZTI (Harsha K. H. et al., GCN #45466).
According to the GECAM-B light curves in about 70-6000 keV, this burst mainly consists of multiple pulses with a duration (T90) of 45 +7/-13 s.
The GECAM-B light curve can be found here:
https://www.bursthub.cn/gcn/2026/gecambgrb260825A.png
Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor (GECAM) mission originally consists of two micro-satellites (GECAM-A and GECAM-B) launched in Dec. 2020. As the third member of GECAM constellation, GECAM-C was launched onboard SATech-01 experimental satellite in July 2022. GECAM mission is funded by the Chinese Academy of Sciences (CAS).