GCN Circular 45095
Subject
The EP-WXT trigger 01709274151 is likely a flaring star
Date
2026-07-07T02:12:06Z (3 days ago)
From
EP Team at NAOC/CAS <ep_ta@bao.ac.cn>
Via
Web form
Y. F. Liang，H. Zhou (PMO)，K. R. Ni (CCNU), C.-K. Kan (HKU), H. Sun (NAO, CAS). on behalf of the Einstein Probe (EP) team:
The EP-WXT trigger 01709274151, detected at 2026-07-06T21:58:41, is likely associated with a stellar flare originating from one of two candidate stars within the FXT error circle: StKM 1-1292 or PM J15587+2351E.
If the flare occurred on StKM 1-1292, the corresponding X-ray luminosity (0.5–4.0 keV) is estimated to be around 2.3 x 10^(31) erg/s. Alternatively, if it originated from PM J15587+2351E, the implied flare luminosity would be around 2.4 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 X-ray follow-up capability (Yuan et al. 2022, Handbook of X-ray and Gamma-ray Astrophysics).