GCN Circular 42679
Subject
The EP-WXT trigger 01709248221 is likely a flaring star
Date
2025-11-14T12:33:49Z (2 days ago)
From
EP Team at NAOC/CAS <ep_ta@bao.ac.cn>
Via
Web form
Z. H. Yang, Q. C. Zhao, Z. X. Li, G. L. Huang, J. Y. Cao (IHEP), J. P. Chen (SYSU), Y. J. Yi (BNU), H. Q. Cheng, H. Sun (NAO, CAS), on behalf of the Einstein Probe (EP) team:
The EP-WXT trigger 01709248221 at the time of 2025-11-14T11:16:43, is likely a stellar flare associated with EM* LkCa 4. 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 1.6e+32 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).