[vsnet-grb-info 6396] VLA radio upper limit on GRB 080721

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  8011
SUBJECT: VLA radio upper limit on GRB 080721
DATE:    08/07/24 14:13:47 GMT
FROM:    Poonam Chandra at U Virginia/NRAO  <pc8s at virginia.edu>

Poonam Chandra (NRAO/UVA) and Dale A. Frail (NRAO) report on
behalf of the Caltech-NRAO-Carnegie GRB Collaboration:

"We used the Very Large Array to observe the field of view toward
optically bright GRB 080721 (GCN 7988) at a frequency of 8.46 GHz
on 2008 July 24.15 UT. The GRB radio afterglow is undetected and
the peak radio flux at the UVOT afterglow position (GCN 7988) is
93 ± 48 uJy.

The National Radio Astronomy Observatory is a facility of the National
Science Foundation operated under cooperative agreement by Associated
Universities, Inc."