GCN Circular 44292
Subject
The EP-WXT trigger 01709260122 is likely a flaring star
Date
2026-04-14T06:10:11Z (9 days ago)
From
EP Team at NAOC/CAS <ep_ta@bao.ac.cn>
Via
Web form
K. R. Ni (CCNU), Q. C. Liu (THU), D. Y. Li and H. W. Pan (NAO, CAS) on behalf of the Einstein Probe (EP) team:
The EP-WXT trigger 01709260122 at the time of 2026-04-14T05:13:09, is likely a stellar flare associated with RX J1553.0+4457. The estimated flux of the flare is around 1.26e-9 erg/s/cm^2 in 0.5-4.0 keV, corresponding to an X-ray luminosity of around 2.05e32 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).