GCN Circular 44247
Subject
The EP-WXT trigger 01709259773 is likely a flaring star
Date
2026-04-09T12:34:09Z (6 days ago)
From
EP Team at NAOC/CAS <ep_ta@bao.ac.cn>
Via
Web form
S.Q. Jiang (NAO, CAS), G. L. Huang, Z. X. Li, J. Y. Cao (IHEP, CAS), W. D. Zhang (NAO, CAS) on behalf of the Einstein Probe (EP) team:
The EP-WXT trigger 01709259773 at the time of 2026-04-09T11:45:11, is likely a stellar flare associated with 1RXS J121842.8-060921. The estimated flux of the flare is around 1.4 × 10^-10 erg/s/cm^2 in 0.5-4.0 keV, corresponding to an X-ray luminosity of around 8.6 × 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).