TITLE: GCN CIRCULAR NUMBER: 37353 SUBJECT: GRB 240825A: MeerKAT detection DATE: 24/08/30 21:26:36 GMT FROM: Genevieve Schroeder at Northwestern University genevieveschroeder@u.northwestern.edu
C. Peña (University of Utah), G. Schroeder (Northwestern University), T. Laskar (University of Utah), K. D. Alexander (University of Arizona), C. Christy (University of Arizona), E. Berger (Harvard University), R. Chornock (UC Berkeley), W. Fong (Northwestern University), R. Margutti (UC Berkeley), P. Schady (University of Bath), S. de Wet (University of Cape Town) and P. Groot (Radboud University) report on behalf of a larger collaboration:
“We observed GRB 240825A (Gupta et al., GCN 37274) with the MeerKAT radio telescope at 1.3 GHz and 3 GHz beginning on 2024 August 29 at 20:34 UT (100.7 hours post burst).
In preliminary analysis, we detect the radio counterpart (Laskar et al., GCN 37314) at 1.3 GHz with a flux density of F ~ 0.16 mJy at the position:
RA (J2000) = 22:58:17.32 Dec (J2000) = +01:01:35.74
with uncertainty ~1.3" in each coordinate, consistent with the X-ray position (Evans et al., GCN 37290), optical position (Gupta et al., GCN 37274; Jiang et al., GCN 37275; Dutton et al., GCN 37276; Odeh et al., GCN 37277; Li et al., GCN 37280; Evans et al., GCN 37290; Leonini et al., GCN 37291; Kuin et al., GCN 37296), and radio position (Laskar et al., GCN 37314, Peña et al., GCN 37322). Further observations are planned.
We thank the MeerKAT staff for scheduling and executing these observations. The MeerKAT telescope is operated by the South African Radio Astronomy Observatory, which is a facility of the National Research Foundation, an agency of the Department of Science and Innovation.”
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