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GCN Circular 36508

Subject
GRB 240516A ATCA radio observations
Date
2024-05-17T19:23:22Z (a month ago)
From
Sarah Chastain at University of New Mexico <sarahichastain@gmail.com>
Via
Web form
S. Chastain (UNM), J. K. Leung (U. Toronto/HUJI), G. E. Anderson (Curtin University), 
A. Gulati (U. Sydney), L. Rhodes (U. Oxford), 
A. J. van der Horst (GWU) on behalf of the PanRadio GRB collaboration

The Australia Telescope Compact Array (ATCA) performed observations
of the long GRB 240516A detected by Swift-BAT (Parsotan et al., GCN 36493),
Fermi-GBM (S. Bala et al., GCN 26499), and AstroSat CZTI (Joshi et al., GCN 36503)
at 5.5, 9, 17 and 19 GHz as part of the Large ATCA "PanRadio GRB"
follow-up programme C3542 (PI. Anderson). ATCA start observing on
2024-05-16 at 13:24 UT (~10 hours post-burst) and continued to observe  
until 21:00 UT on 2024-05-16. In our preliminary analysis, we find 
no radio source coincident with the Swift XRT uncataloged source
(Parsotan et al., GCN 36493) with 3 sigma upper limits of 
186, 126, 276 and 381 microJy/beam at 5.5, 9.0, 17 and 19 GHz, respectively.

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.
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