GCN 45087: The EP-WXT trigger 01709274014: KAIT confirmation of a stellar flare
2026-07-06T14:39:25.710Z | rev 0
WeiKang Zheng (UCB), Xuhui Han (NAOC), Pinpin Zhang (NAOC) and
Alexei V. Filippenko (UCB) report on behalf of the KAIT GRB team:
The 0.76-m Katzman Automatic Imaging Telescope (KAIT), located at
Lick Observatory, automatically responded to the EP-WXT trigger
01709274014 (Jiang et al. GCN 45086) starting at 09:52 UT, about
8 minutes after the trigger. A set of B, V, R, I and clear (roughly
R) filter images were obtained and lasted for ~1.2 hours. We
performed the photometry on the suggested flare star HD 183870B
and see its brightness decreased in all bands, especially in B band
decayed from ~13.6 mag to ~14.8 mag in about 1.2 hours, thus
confirming the EP X-ray trigger is related to the stellar flare.