TITLE:   GCN CIRCULAR
NUMBER:  44213
SUBJECT: The EP-WXT trigger 01709259586 is likely a flaring star
DATE:    26/04/04 06:05:02 GMT
FROM:    EP Team at NAOC/CAS <ep_ta@bao.ac.cn>

Q.Y. Wu, X.X. Sun, W. Chen (NAO,CAS), Y.J. Yi (BNU), Y. Liu (NAO, CAS) on behalf of the Einstein Probe (EP) team:

The EP-WXT trigger 01709259586 at the time of 2026-04-04T05:19:38, is likely a stellar flare associated with UCAC4 498-055345. The estimated flux of the flare is around 8 x 10^-11 erg/s/cm^2 in 0.5-4.0 keV, corresponding to an X-ray luminosity of around 1 x 10^33 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).