GCN Circular 12495
Subject
GRB 111022B: EVLA observations
Event
Date
2011-10-26T03:49:15Z (14 years ago)
From
Ashley Zauderer at CfA <bevinashley@gmail.com>
A. Zauderer and E. Berger (Harvard) report:
"We observed the position of GRB 111022B (GCN 12472) with the EVLA at
5.8 and 22 GHz beginning on 2011 Oct 23.64 UT (0.92 days after the
burst). No radio source is detected at 5.8 GHz to a 3-sigma upper limit
of 30 uJy. At 22 GHz, a potential radio counterpart was detected with a
flux of 45+/-14 uJy, consistent with the most up-to-date 1.5'' Swift-XRT
position (GCN 12478, http://www.swift.ac.uk/xrt_positions). The
potential radio source centroid is (J2000):
RA = 07:15:51.53 +/- 0.05
Dec = 09:41:01.18 +/- 0.37
Follow-up observations at 22 GHz are planned."