GCN Circular 43825
Subject
The EP-WXT trigger 01709258631 is likely a flaring star
Date
2026-02-25T06:09:06Z (a day ago)
From
EP Team at NAOC/CAS <ep_ta@bao.ac.cn>
Via
Web form
JiaYing Cao(IHEP), WenFeng Wen(SZTU), Guojiong Yang and Haiwu Pan (NAO, CAS) on behalf of the Einstein Probe (EP) team:
The EP-WXT trigger 01709258631 at 2026-02-25T03:33:22 is likely a stellar flare associated with RX J1220.4+1226. The estimated flux of the flare is around 4e-11 erg/s/cm^2 in 0.5-4.0 keV, corresponding to an X-ray luminosity of around 4e+31 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).