{
  "circularId": 44057,
  "submittedHow": "web",
  "submitter": "Anna Y Q Ho at Cornell University <ayh24@cornell.edu>",
  "version": 2,
  "format": "text/plain",
  "createdOn": 1774018378381,
  "body": "Anna Y. Q. Ho (Cornell), Michael Bremer (IRAM), Genevieve Schroeder (Cornell) report on behalf of a larger collaboration:\n\nOn UT 2026 March 20 the NOrthern Extended Millimeter Array (NOEMA) observed the position of GRB 260310A / AT2026fgk (GCN 43951, 43958, 43974), a nearby (z=0.153; GCN 43977) gamma-ray burst with bright radio emission at cm wavelengths (GCN 44005, 44045). Observations were obtained in the new dual-band mode (100+230 GHz) as well as in Band 2 (150 GHz). With self-calibration, we measure a preliminary flux density of 17 mJy at 100 GHz, corresponding to a luminosity of 10^42 erg/s, typical for GRB afterglows at this epoch. \n\nFurther observations are planned. We thank the NOEMA staff for rapidly approving and scheduling these observations.",
  "subject": "NOEMA Detection of GRB 260310A / AT 2026fgk",
  "eventId": "GRB 260310A",
  "editedBy": "Judith Racusin at NASA/GSFC <judith.racusin@nasa.gov> on behalf of Anna Y Q Ho at Cornell University <ayh24@cornell.edu>",
  "editedOn": 1774020542793
}