GCN Circular 40646
Subject
The EP-WXT trigger 01709178069 is likely a flaring star
Date
2025-06-07T01:58:34Z (a day ago)
From
EP Team at NAOC/CAS <ep_ta@bao.ac.cn>
Via
Web form
D. F. Hu, Y. Wang (PMO, CAS), H. Sun, W. D. Zhang (NAO, CAS) on behalf of the Einstein Probe (EP) team:
The EP-WXT trigger 01709178069 at the time of 2025-06-06T23:38:19 (UTC), is likely a stellar flare associated with UCAC4 204-077663. The estimated flux of the flare is around 8 x 10^-11 erg/s/cm^2 in 0.5-4 keV, corresponding to an X-ray luminosity of around 1.1 x 10^32 erg/s.
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).