{
  "subject": "EP250812a: Liverpool Telescope upper limits",
  "body": "A. Bochenek and D. A. Perley (LJMU) report:\n \nWe observed the field of the fast X-ray transient EP250812a (Zhang et al., GCN 41327) using the IO:O optical camera on the 2m robotic Liverpool Telescope. We obtained 8x100s exposures in the SDSS r’ and z’ filters starting at 2025-08-13 03:13:06 UT, approximately 14 hours after the trigger.\n\nWe do not detect any new objects within the EP/FXT error region of the transient (Zhang et al., GCN 41327; Zhang et al., GCN 41339). The 3-sigma limiting magnitudes on the stacked images are r > 21.71 mag and z > 21.53 mag. This is in agreement with the detection of an optical counterpart candidate by SVOM/VT at VT_R = 22.74 ± 0.15 at 14.3 hours (Xin et al., GCN 41340).",
  "circularId": 41341,
  "eventId": "EP250812a",
  "format": "text/plain",
  "createdOn": 1755080930832,
  "submittedHow": "web",
  "submitter": "A. Bochenek at Liverpool John Moores University <a.m.bochenek@2023.ljmu.ac.uk>",
  "bibcode": "2025GCN.41341....1B"
}