GCN Circular 38030
Subject
EP241021a: Liverpool Telescope optical follow-up observations
Event
Date
2024-11-01T10:33:17Z (a year ago)
From
A. Bochenek at Liverpool John Moores University <a.m.bochenek@2023.ljmu.ac.uk>
Via
Web form
A. Bochenek and D. A. Perley (LJMU) report:
We observed the field of the fast X-ray transient EP241021a (Hu et al., GCN 37834) using the IO:O optical camera on the 2m robotic Liverpool Telescope. We obtained 6x200s exposures in the SDSS r’ filter starting at 2024-10-31 23:32:50 UT, approximately 10.77 days after the trigger.
We report a detection in the stacked images of r = 21.95 ± 0.08 mag, consistent with the observations from Schneider et al. (GCN 38022) from the same night, at a position for the optical counterpart reported by Fu et al. (GCN 37840) and other optical observations (Fu et al., GCN 37842; Li et al., GCNs 37844, 37846; Ror et al., GCN 37845; Zheng et al., GCN 37849; Moskvitin and Spiridonova, GCN 37850; Pugliese et al. GCN 37852; Pérez-Fournon et al. GCN 37858, Bochenek & Perley, GCN 37869; Kumar et al., GCN 37875; Busmann et al., GCN 37877; J-Jin et al., GCN 37892; Freeburn et al., GCNs 37911, 37942, Quirola-Vasquez et al., GCN 37930; Freeburn et al., GCN 37942; Moskvitin et al. GCN 37951; Pan et al., GCN 37968; Klingler et al., GCN 37990; Carotenuto et al. GCN 38014, Schneider et al. GCN 38022).
The photometry was obtained using nearby PanSTARRS standards and was not corrected for extinction.