{
  "bibcode": "2014GCN.17099....1A",
  "body": "G. E. Anderson, R. P. Fender, T. D. Staley (University of Oxford), \nA. J. van der Horst (University of Amsterdam), A. Rowlinson (CASS)\n\nWe observed the position of GRB 141121A (Lien et al., GCN 17075)\nat 15 GHz with the Arcminute Microkelvin Imager (AMI-LA) starting on \n2014 Nov 24.17 to 24.33 UT, corresponding to 3 days post-burst. We \nhave detected a radio source coincident with the optical counterpart \n(Tanga et al., GCN 17078) with a preliminary flux of 0.46 +/- 0.05 mJy.\n\nEarlier observations were conducted on 2014 Nov 21.16 to 21.25 UT and \nNov 22.05 to 22.21 UT, corresponding to <6 minutes and 0.9 days post-burst,\nyielding a 3 sigma flux upper limit of 0.26 mJy and a marginal detection of \n0.18 +/- 0.06 mJy, respectively.\n\nFurther AMI monitoring is planned. We thank the AMI staff for scheduling these observations.",
  "circularId": 17099,
  "createdOn": 1416936696000,
  "email": "gemma.anderson@astro.ox.ac.uk",
  "subject": "GRB 141121A: AMI 15 GHz detection",
  "submitter": "Gemma Anderson at U of Oxford  <gemma.anderson@astro.ox.ac.uk>",
  "eventId": "GRB 141121A"
}