{
  "circularId": 44922,
  "createdOn": 1781255695956,
  "body": "\nS.J. Yin (GXU), Z. Kang (CHO), C. Wu (NAOC), L.P. Xin, X.H. Han, P.P. Zhang, X.M. Lu (NAOC), Z.W. Li, Y. Lv (CHO), R.S. Zhang, Y.J. Xiao, Y.L. Qiu, J. Wang, J.S. Deng, L. Huang, J.Y. Wei (NAOC)   report on behalf of the SVOM/C-GFT team:\n \nWe observed the field of EP-WXT trigger 01709269176 (Zhou et al., GCN 44913) with LATIOS on SVOM/C-GFT. Observations started at 2026-06-11T13:13:04.862 UTC, ~47.5 min after the trigger. \n \nOur observations in g,r and i bands confirmed that the reported associated star (GAIA DR3 1249275629854893952,GCN 44913 ) exhibits stellar flares. \nA flare is detected at ~5000 s post trigger, with an amplitude of ~1.3 mag in g-band and ~0.4 mag in i-band. The flare epoch is consistent with an X-ray flare detected by  EP-FXT (EP team, private communication).\n\nThe photometry was calibrated against nearby Pan-STARRS1 DR1 stars.\n \nWe thank the observation assistants Chulei Guo and Yinhuai Hao at Jilin observatory for their excellent support.\n \nThe Chinese Ground Follow-up Telescope (C-GFT) for the SVOM mission is located at Jilin Station, Changchun Observatory, National Astronomical Observatories, CAS. It features two instruments: (1) CATCH at the Cassegrain focus with a 21 arcmin x 21 arcmin FOV for simultaneous g/r/i-band imaging, and (2) LATIOS, a 4k x 4k CMOS camera at the prime focus with a 1.28 deg x 1.28 deg FOV that images in g, r, and i bands via filter switching.\n\n",
  "submittedHow": "web",
  "submitter": "SVOM_group <svomgroup@bao.ac.cn>",
  "format": "text/markdown",
  "subject": "The EP-WXT trigger 01709269176: SVOM/C-GFT confirmation of a stellar flare "
}