GCN Circular 43777
Subject
The EP-WXT trigger 01709258455 is likely a flaring star
Date
2026-02-18T02:52:19Z (6 days ago)
From
EP Team at NAOC/CAS <ep_ta@bao.ac.cn>
Via
Web form
X. X. Sun (NAO, CAS), Y. L. Wang (NAO, CAS; ICE, CSIC-IEEC), Y.Q. Zhao(USTC,PRIC), and H. Sun (NAO, CAS) on behalf of the Einstein Probe (EP) team:
The EP-WXT trigger 01709258455 at the time of 2026-02-17T21:46:05, is likely a stellar flare associated with RX J0920.0+3052. The estimated flux of the flare is around 8e-11 erg/s/cm^2 in 0.5-4.0 keV, corresponding to an X-ray luminosity of around 5.2e30 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).