GCN Circular 43247
Subject
The EP-WXT trigger 01709250662 is likely a flaring star
Date
2025-12-28T01:29:14Z (21 hours ago)
From
EP Team at NAOC/CAS <ep_ta@bao.ac.cn>
Via
Web form
Y.-H. I. Yin (HKU), J. P. Feng, B. Zhang (USTC), H. C. Ding, T. Wu (AHNU), D. Z. Du (ZJU), R. X. Hu (WHU), and W. D. Zhang (NAO,CAS) on behalf of the Einstein Probe (EP) team:
The EP-WXT trigger 01709250662 at the time of 2025-12-27T16:37:01, is likely a stellar flare associated with PM J11474+6644. The estimated flux of the flare is around 1.8×10^(-10) erg/s/cm^2 in 0.5-4.0 keV, corresponding to an X-ray luminosity of around 9.5×10^30 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).