GCN Circular 36832
Subject
EP240703a: TRT further optical observation
Date
2024-07-05T15:25:25Z (5 months ago)
From
S. Tinyanont at National Astronomical Research Institute of Thailand <samaporn@narit.or.th>
Via
Web form
S. Tinyanont, R. Anutarawiramkul, P. Butpan (NARIT), X. Liu, S.Q. Jiang, J. An, S.Y. Fu, Z.P. Zhu, D. Xu, Z. Fan, W.X. Li, N.C. Sun, Y.N. Wang (NAOC) report on behalf of a large collaboration:
We observed the field of the fast X-ray transient EP240703a (Wang et al., GCN 36807) using the 0.7-m telescope of the Thai Robotic Telescope (TRT) network, located at Spring Brook Observatory, Australia. Observations started at 10:16:15 UTC on 2024-07-04, i.e., 1.40 day after the EP trigger, and 5 x 360 s I-band frames were obtained.
No uncatalogued optical transient is detected in the stacked image within the 3-arcmin EP/WXT error circle, down to a 5-sigma limiting magnitude of I ~ 20.0, calibrated with Pan-STARRS sources in the field.