GCN Circular 36165
Subject
GRB 240418A: AKO Upper Limit
Date
2024-04-18T21:54:58Z (15 days ago)
From
Mohammad Odeh at Al Khatim Observatory M44 <mshodeh@gmail.com>
Via
legacy email
Mohammad Odeh (Al-Khatim Observatory, AKO, operated by the International
Astronomical Center in Abu Dhabi, UAE) and Nidhal Guessoum (American
University of Sharjah, UAE), report:
We observed the field of GRB 240418A (Siegel et al., GCN 36162) with our
0.36m f/7.7 robotic telescope.
We obtained 13x180s images using Ic filter on 18 April 2024, starting at
21:06UT, 42 minutes after the GRB trigger.
We did not detect any credible afterglow candidate within the updated XRT
position (Trigger number 1222885), down to the magnitude = 20.0 for the
stacked images.
The magnitude was estimated using the Atlas catalogue as a reference, and
it is not corrected for galactic extinction.