{
  "bibcode": "2005GCN..3309....1S",
  "body": "A. M. Soderberg (Caltech) and D. A. Frail (NRAO) report on behalf of\nthe Caltech-NRAO-Carnegie GRB Collaboration:\n\n\"We observed the field centered on the BAT position of the Swift burst\nGRB 050421 (GCN#3296) using the VLA at a frequency of 8.46 GHz\non Apr 21.62 UT (t ~ 0.4 days after the burst).\nWe do not detect any radio sources within the XRT error circle (GCN#3301).\nWe place a 2-sigma detection limit of 34 uJy on the field.\"",
  "circularId": 3309,
  "createdOn": 1114109038000,
  "email": "ams@astro.caltech.edu",
  "subject": "GRB050421: Radio Observations",
  "submitter": "Alicia Soderberg at Caltech  <ams@astro.caltech.edu>",
  "eventId": "GRB 050421"
}