TITLE: GCN CIRCULAR NUMBER: 39442 SUBJECT: The EP-WXT trigger 01709131882 is likely a flaring star DATE: 25/02/24 02:20:45 GMT FROM: EP Team at NAOC/CAS ep_ta@bao.ac.cn
Y. Wang (PMO, CAS), H. Z. Wu (HUST), H. He, S.-E. Xu (WHU), W. Yuan (NAOC, CAS) report on behalf of the Einstein Probe team:
The EP-WXT trigger (ID: 01709131882) on 2025-02-23 21:47:14 (UTC) is likely a stellar flare associated with a BY Dra Variable V1217 Cen. The estimated flux of the flare is around 1.0 x 10^-10 erg/s/cm^2 in 0.5-4.0 keV, corresponding to an X-ray luminosity of around 5.1 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).
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