TITLE: GCN CIRCULAR NUMBER: 44062 SUBJECT: EP-WXT trigger 01709258989: KAIT confirmation of a stellar flare DATE: 26/03/21 03:19:15 GMT FROM: Weikang Zheng at UC Berkeley <weikang@berkeley.edu> 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 01709258989 (Zhou et al. GCN 44054) starting at 04:57 UT, about 2.4 hours after the trigger. A set of clear (roughly R) filter images were obtained and lasted for ~2.5 hours. Photometry on the suggested flare star 1RXS J073101.9+460030 (confirmed by Perez-Garcia et al., GCN 44056) show that its brightness remain around 12.5 mag for about 1 hour, then another flare started at 06:05 UT (3.53 hours after trigger), brightened to ~12.0 mag at peak time of 06:11 UT, then decreased to ~12.4 mag around 06:23 UT. This confirming the EP X-ray trigger is related to the stellar flare. View this GCN Circular online at https://gcn.nasa.gov/circulars/44062. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...