GCN Circular 46107
Subject
EP-WXT trigger 01709321980: confirmation of a stellar flare by BOOTES-5
Date
2026-10-30T06:43:03Z (3 days ago)
From
I. Perez-Garcia at Instituto de Astrofísica de Andalucía <ipg@iaa.es>
Via
Web form
I. Perez-Garcia, E. J. Fernandez-Garcia, M. D. Caballero-Garcia, S.-Y. Wu, R. Sanchez-Ramirez, S. Guziy and A. J. Castro-Tirado (IAA-CSIC, Granada), I. M. Carrasco (SMA), M. Gritsevich (Univ. of Helsinki), C. Perez del Pulgar (Univ. of Malaga), Y.-D. Hu (GXU), S. Jeong (ADD, Daejeon), G. Garcia-Segura and D. Hiriart (IA-UNAM, Ensenada), D. R. Xiong (Yunnan Observatories of CAS, Kunming), and W. H. Lee (UNAM, Mexico DF), on behalf of a larger collaboration, report:
Following the detection of trigger 01709321980 by EP-WXT (Li et al. GCN 46106), the 0.6m robotic telescopes BOOTES-5/JGU robotic telescope at San Pedro Martir Observatory (Mexico) responded to the alert on Oct 30, 05:30 UT (i.e. 6 min after the detection). Within the reported EP-FXT error circle we find the star ATO J336.9854+01.6911 decreasing 0.18 mag in brightness (clear filter) during a 12 min time interval, confirming the EP X-ray trigger due to a stellar flare.
We would like to thank the staff at San Pedro Martir Observatory for their excellent support.