{
  "bibcode": "2011GCN.12777....1C",
  "body": "A. Cucchiara (UCSC/UCO Lick), A. J.  Levan (U. Warwick), \nand N. Tanvir (U. Leicester) report:\n\nOn December 30.05 UT (157 minutes after the BAT trigger) \nwe observed the field of GRB 111229A (Lien et al., GCN 12774) \nusing GMOS-South on the Gemini-South 8-m telescope.  \n\nAn optical afterglow is detected at a position reported by\nNicuesa Guelbenzu et al. (GCN 12775).\nSubsequent spectroscopic observation of the optical afterglow of \nGRB 111229A  (range 5900-10080 Angstroms) reveals several absorption \nfeatures, including FeII2586,2600, MnII2606, MgII2796,2803 \nand MgII2853 at a common redshift of 1.3805.\n\nWe therefore suggest this to be the redshift of GRB 111229A.\n\nWe thank the Gemini staff for performing this observation, \nin particular Pascale Hibon.",
  "circularId": 12777,
  "createdOn": 1325212324000,
  "email": "acucchiara@lbl.gov",
  "subject": "GRB 111229A: Gemini-South Redshift",
  "submitter": "Antonino Cucchiara at LBNL  <acucchiara@lbl.gov>",
  "eventId": "GRB 111229A"
}