TITLE:   GCN CIRCULAR
NUMBER:  37162
SUBJECT: GRB 240809A: ATA radio non-detection
DATE:    24/08/12 23:39:16 GMT
FROM:    Tanmoy Laskar at U of Bath <tanmoylaskar@gmail.com>

C. Christy (University of Arizona), W. Farah (SETI Institute), T. Laskar
(University of Utah), K. D. Alexander (University of Arizona), G. Schroeder
(Northwestern University), C. Peña (University of Utah), A. Pollak (SETI
Institute), A. Siemion (SETI Institute), E. Berger (Harvard University), R.
Chornock (UC Berkeley), W. Fong (Northwestern University), R. Margutti (UC
Berkeley), and P. Schady (University of Bath) report on behalf of a larger
collaboration:


"We observed GRB 240809A (Evans et al., GCN 37110) with the Allen Telescope
Array (ATA) beginning on 2024 August 09 23:25 UTC (14.9 h after the burst)
at 5GHz and 8GHz. In our preliminary analysis, we do not detect any radio
emission at or near the X-ray and optical position (Evans et al., GCN
37110) or radio position (Christy et al., GCN 37158) to a 3-sigma limit of
~0.9mJy at 5GHz and ~2.0mJy at 8GHz.

We thank the ATA staff for quickly scheduling these observations"
