GCN Circular 13343
Subject
GRB 120521C: EVLA 22 GHz Detection
Date
2012-05-25T15:16:06Z (12 years ago)
From
Ashley Zauderer at CfA <bevinashley@gmail.com>
A. Zauderer and E. Berger (Harvard) report on behalf of a larger
collaboration:
"We re-observed the position of GRB 120521C (GCN 13318) on 2012 May
23.12 UT (1.15 d after the burst) with the EVLA at 21.8 GHz. Within
the enhanced Swift-XRT error circle (GCN 13324) we detect a brightening
radio source with a flux density that is about a factor of two above our
early 3-sigma limit of 50 uJy (GCN 13336). We conclude that this is the
radio afterglow of GRB 120521C. Follow-up observations at multiple
frequencies are in progress."