GCN Circular 43102
Subject
EP251214a: EP-FXT non-detection and upper limit
Event
Date
2025-12-15T02:22:09Z (a day ago)
From
EP Team at NAOC/CAS <ep_ta@bao.ac.cn>
Via
Web form
Y.-H. I. Yin (HKU), Y. H. Jiang (NJU), Y. Q. Zhao (PRIC,USTC), W. F. Wen (SZTU), H. Q. Cheng, and H. Sun (NAOC) on behalf of the Einstein Probe (EP) team:
EP-FXT observed the field of EP251214a (Yin et al., GCN 43087) for 2997 seconds starting at 2025-12-14T15:14:34, around 13 hours after the detection by EP-WXT. No significant X-ray source is detected within the 3.1 arcmin radius of the EP-WXT position (Yin et al., GCN 43087) to a preliminary 0.5-10 keV upper limit of 7e-14 erg/cm2/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).