{
  "createdOn": 1719225410143,
  "bibcode": "2024GCN.36744....1R",
  "circularId": 36744,
  "submittedHow": "web",
  "subject": "GRB 240619A: detection of a radio counterpart with AMI-LA",
  "eventId": "GRB 240619A",
  "submitter": "Lauren Rhodes at Oxford <lauren.rhodes@physics.ox.ac.uk>",
  "body": "Lauren Rhodes, Rob Fender (Oxford), Dave Green, Dave Titterington (Cambridge) report:\n\nWe observed the field of GRB 240619a (GCN 36694) with the Arcminute Microkelvin Imager - Large Array (AMI-LA) at 15.5 GHz beginning at UT 13:45:34 on 22-June-2024 for a total of 4 hours. The flux standard 3c286 was used to calibrate the bandpass response and flux scale of the AMI-LA and J1051+2119 was used as an interleaved complex gain calibrator.\n\nWe detected an unresolved radio source at the position of the afterglow candidate (GCN 36715) with a flux density of about 1.5mJy/beam. The rms noise in the field is about 60uJy/beam.\n\nMore observations are ongoing.\n\nWe thank the staff at the Mullard Radio Astronomy Observatory for carrying out these observations and operating the AMI-LA.",
  "format": "text/plain"
}