{
  "bibcode": "2023GCN.33251....1R",
  "body": "Lauren Rhodes (Oxford), Itai Sfaradi (HUJI), Joe Bright (Oxford), Rob Fender (Oxford), Assaf Horesh (HUJI), David Green (Cambridge), Paul Scott (Cambridge), David Titterington (Cambridge) report:\n\n\n\nWe observed the field of the candidate optical afterglow ZTF23aabmzlp (AT2023azs)\n(Andreoni et al., GCN 33229) with the Arcminute Microkelvin Imager Large-Array (AMI-LA) at 15.5 GHz beginning at UT 00:29:41 on 02-02-2023 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 J1048+7143 was used as an interleaved complex gain calibrator.\n\nWe do not detect any radio emission at the position reported in GCN 33229 and report a 3sigma upper limit of 128uJy/beam. Further observations are planned, and any future radio detection will be reported.\n\nWe thank the staff at the Mullard Radio Astronomy Observatory for carrying out these observations and operating the AMI-LA.",
  "circularId": 33251,
  "createdOn": 1675342153000,
  "email": "lauren.rhodes@physics.ox.ac.uk",
  "subject": "ZTF23aabmzlp/AT2023azs: AMI-LA radio upper limit",
  "submitter": "Lauren Rhodes at Oxford  <lauren.rhodes@physics.ox.ac.uk>",
  "eventId": "ZTF23aabmzlp"
}