GCN Circular 37944
Subject
GRB 241029A: AKO Optical Afterglow Detection
Date
2024-10-29T17:24:39Z (4 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 241029A detected by Fermi/GBM (Fermi GBM team,
GCN 37932), SVOM/ECLAIRs & SVOM/GRM (Schanne et al., GCN 37934; Wang et
al., GCN 37935), with our 0.36m f/7.7 robotic telescope. The observation
started on 29 October 2024 at 15:36 (UT), 13.3 hours from the trigger.
We obtained multiple 180-sec exposures in Ic filter. We barely detected the
optical afterglow at:
R.A. (J2000): 21:41:20.11
Dec. (J2000): +05:04:53.2
Our detection is consistent with the results of (Jiang et al., GCN 37937;
Lin et al., GCN 37939; Jiang et al., GCN 37940; Francile et al., GCN 37941;
Ackley et al., GCN 37943).
The following observation was calculated using Atlas catalogue as a
reference:
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ObsTime (mid), Exposure (sec), Filter, Mag
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2024-10-29T16:18:15Z, 28 x 180s (stacked), Ic, 19.9 +/- 0.32
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The magnitude is not corrected for galactic extinction.