GCN Circular 39188
Subject
The EP-WXT trigger 01709131332 is likely a flaring star
Date
2025-02-07T03:50:53Z (3 months ago)
From
EP Team at NAOC/CAS <ep_ta@bao.ac.cn>
Via
Web form
M. H. Zhang, M. J. Liu, D. Y. Li (NAOC, CAS), Q. C. Shui (IHEP, CAS), W. D. Zhang (NAOC, CAS) report on behalf of the Einstein Probe team:
The EP-WXT trigger (ID: 01709131332) on 2025-02-06 20:25:17 (UTC) is likely a stellar flare associated with a high proper motion star UPM J1217-3644. The estimated flux of the flare is around 1.2 x 10^-10 erg/s/cm^2 in 0.5-4.0 keV, corresponding to an X-ray luminosity of around 1.2 x 10^31 erg/s.
Launched on January 9, 2024, EP is a space X-ray observatory to monitor the soft X-ray sky with onboard X-ray follow-up capability (Yuan et al. 2022, Handbook of X-ray and Gamma-ray Astrophysics).