{
  "bibcode": "2003GCN..2018....1G",
  "body": "P. Garnavich (Notre Dame), K.Z. Stanek and P. Berlind (CfA) \n\nPhotometry of the GRB 030329 afterglow (Peterson & Price: GCN\n1985; Torii: GCN 1986) has been obtained with the Fred\nL. Whipple 1.2m telescope beginning March 30.10 (UT). The\nR-band images show a power-law decay index of -1.9 between\n14 and 18 hours after the burst. This is significantly steeper\nthan the decay index of -0.9 derived from the photometry\nof Rykoff & Smith (GCN 1995) and Burenin et al. (GCN 2001)\nobtained within 8 hours of the burst. A break in the light curve\nappears to have occurred between 0.3 and 0.5 days after\nthe burst.\n\nThe post-break light curve is well fit by\n\n               R=16.3+1.9*2.5*log(age in days)\n\nwith the calibration based on that of Martini et al. (GCN 2013).\n\nThis message may be cited.",
  "circularId": 2018,
  "createdOn": 1049011991000,
  "email": "pgarnavi@miranda.phys.nd.edu",
  "subject": "GRB 030329, optical photometry",
  "submitter": "Peter Garnavich at U of Notre Dame  <pgarnavi@miranda.phys.nd.edu>",
  "eventId": "GRB 030329"
}