GCN Circular 38287
Subject
GRB 241113A: Possible ATCA Radio detection
Event
Date
2024-11-21T02:50:29Z (a year ago)
From
Gemma Anderson at Curtin U <gemma.anderson@curtin.edu.au>
Via
Web form
G. E. Anderson (Curtin), S. Chastain (UNM), J. K. Leung (UofT/HUJI), A. J. van der Horst (GWU), L. Rhodes (TSI/McGill), A. Gulati (USyd), B. Gompertz (Birmingham) on behalf of the ATCA PanRadio GRB collaboration
The Australia Telescope Compact Array (ATCA) rapid-response mode triggered on GRB 241113A (Siegel et al. GCN 38194) 2024-11-13. The observation start time was delayed due to poor weather conditions so began 2.6 hours post-burst (10:25-17:30 UT). We tentatively detect the radio afterglow coincident with the X-ray (Siegel et al. GCN 38194, Goad et al. GCN 38198) and optical position (Siegel et al. GCN 38194, Francile et al. GCN 38195, Huertas Ferrer et al. GCN 38197, Izzo et al. GCN 38201, Ferro et al. GCN 38206, Zheng et al. GCN 38216) at 9 GHz with a flux density of 42+/-16 microJy/beam (RMS of 10 microJy/beam).
We thank the CSIRO Space and Astronomy staff for supporting these observations.
We acknowledge the Gomeroi people as the traditional owners of the Observatory site. The Australia Telescope Compact Array is part of the Australia Telescope National Facility (https://ror.org/05qajvd42) which is funded by the Australian Government for operation as a National Facility managed by CSIRO.