TITLE: GCN CIRCULAR NUMBER: 40635 SUBJECT: The EP-WXT trigger 01709177873 is likely a flaring star DATE: 25/06/06 02:53:28 GMT FROM: EP Team at NAOC/CAS ep_ta@bao.ac.cn
T. Y. Lian, R. D. Liang (NAOC), H. L. Peng (NNU), T. C. Zheng (PMO), W. Yuan (NAOC) on behalf of the Einstein Probe (EP) team:
The EP-WXT trigger 01709177873 at the time of 2025-06-05T18:51:47, is likely a stellar flare associated with RX J1553.0+4457. The estimated flux of the flare is around 1.2e-10 erg/s/cm^2 in 0.5-10.0 keV, corresponding to an X-ray luminosity of around 2e31 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).
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