[vsnet-grb-info 5127] VLA observation of GRB 070923

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  6831
SUBJECT: VLA observation of GRB  070923
DATE:    07/09/28 20:55:19 GMT
FROM:    Poonam Chandra at U Virginia/NRAO  <pc8s at virginia.edu>

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

"We observed the field centered on the BAT position of the Swift short
hard burst GRB 070923 (GCN#6818) using the VLA at a frequency of 8.46 GHz
and starting at 18.70 UT on Sept 28, 2007, about 5 days after the burst. 
There is no detection of the afterglow at the GRB Swift-BAT position
(GCN#6821 )with 2-sigma upper limit of 90 microJy on its flux density.

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