{
  "bibcode": "2017GCN.21466....1M",
  "body": "K. P. Mooley (Hintze Fellow, Oxford), T. D. Staley, R. P. Fender \n(Oxford), G. E. Anderson (Curtin), T. Cantwell (Manchester), D. \nTitterington, S. H. Carey, J. Hickish, Y. C. Perrott, N. Razavi-Ghods, \nP. Scott (Cambridge), K. Grainge, A. Scaife (Manchester)\n\nThe AMI Large Array robotically triggered on the Swift alert for the \nshort GRB 170728B (Cenko et al., GCN 21371) as part of the 4pisky \nprogram, and subsequent follow up observations were obtained up to 3 \ndays post-burst. Our observations at 15 GHz on 2017 Jul 29.00, Jul \n29.80, Jul 30.80 and Jul 31.76 (UT) do not reveal any radio source at \nthe XRT location (Osborne et al., GCN 21377), with 3sigma upper limits \nof 258 uJy, 201 uJy, 171 uJy and 108 uJy respectively. This upper limit \nis consistent with the radio afterglow detection on 2017 Jul 29.81 \nreported by Fong et al. (GCN 21395; much fainter than 300 uJy at 6 GHz).\n\nWe thank the AMI staff for scheduling these observations. The AMI-GRB \ndatabase is a log of all GRB follow up observations with the AMI, and is \navailable at http://4pisky.org/ami-grb/.",
  "circularId": 21466,
  "createdOn": 1502475412000,
  "email": "kunal.mooley@physics.ox.ac.uk",
  "subject": "GRB 170728B: 15 GHz upper limits from AMI",
  "submitter": "Kunal Mooley at Oxford U  <kunal.mooley@physics.ox.ac.uk>",
  "eventId": "GRB 170728B"
}