{
  "bibcode": "2009GCN..8987....1E",
  "body": "P.A. Evans (U. Leicester) reports on behalf of the Swift-XRT team:\n\nSwift has performed follow-up observations of the BAT Slew Survey GRB\n090306B (Copete et al, GCN Circ. 8944), gathering 4 ks of data in the\ninterval T0+484 ks to T0+555 ks. The X-ray source reported by Evans et\nal. (GCN Circ 8947) is no longer detected, with a 3-sigma upper limit of\n1.9e-3  counts/sec. We thus confirm that it was the afterglow of GRB\n090306B.\n\nThis circular is an official product of the Swift-XRT team.",
  "circularId": 8987,
  "createdOn": 1236952295000,
  "email": "pae9@star.le.ac.uk",
  "subject": "GRB 090306B: Confirmation of the X-ray afterglow",
  "submitter": "Phil Evans at U of Leicester  <pae9@star.le.ac.uk>",
  "eventId": "GRB 090306B"
}