GCN Circular 44085
Subject
The EP-WXT trigger 01709259045 is likely a flaring star
Date
2026-03-23T02:46:01Z (23 days ago)
From
EP Team at NAOC/CAS <ep_ta@bao.ac.cn>
Via
Web form
Y.L. Hua (PMO, CAS), T. Zhao, W. Chen, Y. Liu (NAOC, CAS) on behalf of the Einstein Probe team
The EP-WXT trigger 01709259045 at the time of 2026-03-22T23:47:38, is likely a stellar flare associated with 2MASS J15570856+2749007. The estimated flux of the flare is around 6e-11 erg/s/cm^2 in 0.5-4 keV, corresponding to an X-ray luminosity of around 4.31e+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).