{
  "bibcode": "2002GCN..1744....1L",
  "body": "GRB021211: Optical observations\n\nD. Q. Lamb, J. C. Barentine, M. C. Nysewander, D. E. Reichart,\nM. Schwartz, C. Laws, D. G. York, and R. J. McMillan report,\n\nWe have observed the field of GRB021211 (Crewe et al., GCN 1734) using\nthe ARC 3.5-meter telescope at APO under excellent seeing conditions\nbut occasional high cirrus.  Pointing problems prevented us from\ncalibrating our images using standard stars.  In two 2000 second i'\nimages of the GRB021211 field beginning at 09:19 UT on December 12, we\ndetect an object which we estimate has i* > 23 at the position of the\noptical afterglow of GRB021211 (Fox and Price, GCN 1731).  The object\nis more diffuse than the point spread function for stars that are\nnearby in the images, which suggests that the object may be the host\ngalaxy of GRB021211.  If so, the optical afterglow of GRB021211 was\nfainter than about i* = 23.  Comparison with I_c images taken at\nTenagra beginning 40 minutes after the burst implies that the afterglow\nfaded in i* by more than about 4 magnitudes in the intervening 21 hours.\n\nThis message may be cited.",
  "circularId": 1744,
  "createdOn": 1039739547000,
  "email": "lamb@oddjob.uchicago.edu",
  "subject": "GRB021211: Optical observations",
  "submitter": "Don Lamb at U.Chicago  <lamb@oddjob.uchicago.edu>",
  "eventId": "GRB 021211"
}