{
  "bibcode": "2017GCN.21951....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 GRB \n170921A (D'Ai et al., GCN 21901) as part of the 4pisky program, and \nsubsequent follow up observations were obtained up to 10 days \npost-burst. Our observations at 15 GHz on 2017 Sep 21.89, Sep 27.04 and \nSep 28.97 (UT) do not reveal any radio source at the XRT location \n(Beardmore et al., GCN 21906), with 3sigma upper limits of 186 uJy, 117 \nuJy and 159 uJy respectively.\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": 21951,
  "createdOn": 1506888838000,
  "email": "kunal.mooley@physics.ox.ac.uk",
  "subject": "GRB 170921A: 15 GHz upper limits from AMI",
  "submitter": "Kunal Mooley at Oxford U  <kunal.mooley@physics.ox.ac.uk>",
  "eventId": "GRB 170921A"
}