[vsnet-grb-info 20599] GRB 180418A: 15 GHz upper limits from AMI
GCN Circulars
gcncirc at capella2.gsfc.nasa.gov
Fri May 11 06:44:37 JST 2018
TITLE: GCN CIRCULAR
NUMBER: 22697
SUBJECT: GRB 180418A: 15 GHz upper limits from AMI
DATE: 18/05/10 21:43:58 GMT
FROM: Kunal Mooley at NRAO,Caltech <kmooley at caltech.edu>
J. Bright (Oxford), K. P. Mooley (NRAO, Caltech; Jansky Fellow), R. P.
Fender (Oxford)
We observed the field of GRB 180418A (D'Elia et al., GCN 22646) with the
AMI Large Array at 15.5 GHz. Our observations on 2018 Apr 18.88, Apr
20.89 and Apr 22.86 (UT) (0.61 d, 2.61 d and 4.58 post-burst) do not
reveal any radio source at the XRT location (Goad et al., GCN 22650),
with preliminary 3sigma upper limits of 99 uJy, 81 uJy and 93 uJy
respectively.
We thank the MRAO staff for scheduling these observations. Results from
the AMI short-GRB program are posted on the AMI-GRB database available
at http://4pisky.org/ami-grb/.
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