{
  "bibcode": "1999GCN...269....1F",
  "body": "D. A. Frail (NRAO), S. R. Kulkarni (Caltech) and G. B. Taylor (NRAO)\nreport:\n\n\"We have been monitoring the radio source claimed to be a possible\nafterglow candidate for GRB 981220 based on early observations at WSRT\n(GCN #168) and the VLA (GCN #170). Observations made over a period of\n75 days shows that the source has increased in flux density at 4.9 GHz\nby nearly a factor of four. However, at 15 GHz the source has remained\nconstant, while at 8.5 GHz there are only small (<20%) variations.\nThe behavior of the radio light curves for this source does not\nresemble that of previous radio afterglows. Further observations are\nplanned with the Very Long Baseline Array to ascertain the nature of\nthis unusual radio variable.\"\n\nThis message is citeable.",
  "circularId": 269,
  "createdOn": 920486674000,
  "email": "dfrail@nrao.edu",
  "subject": "GRB 981220, radio observations",
  "submitter": "Dale A. Frail at NRAO  <dfrail@nrao.edu>",
  "eventId": "GRB 981220"
}