GCN Circular 45484
Subject
GRB 260831B: EP-FXT follow-up observation
Event
Date
2026-09-01T08:56:27Z (15 hours ago)
From
EP Team at NAOC/CAS <ep_ta@bao.ac.cn>
Via
Web form
Y. F. Liang, J. Y. Liu(PMO), X. Mao, Q. H. Lao, Z. X. Ling (NAO,CAS) on behalf of the Einstein Probe (EP) team:
EP-FXT performed a follow-up observation of the SVOM/ECLAIRs-detected burst GRB 260831B (SVOM/sb26083106) (Godet et al. GCN 45477; Guan et al. GCN 45482) at 2026-08-31T21:31:08 (UTC), about 3 hours after the SVOM/ECLAIRs trigger, with an exposure time of 3002s. There is no uncataloged source within ECLAIRs' error box. The upper limit of this observation is about 2 x 10^(-13) erg/s/cm^2.
Launched on January 9, 2024, EP is a space X-ray observatory to monitor the soft X-ray sky with X-ray follow-up capability (Yuan et al. 2022, Handbook of X-ray and Gamma-ray Astrophysics).