{
  "bibcode": "2011GCN.12764....1X",
  "body": "D. Xu (WIS/NAOC), J.P.U. Fynbo (DARK), J. McCormac (Queen's Univ.\nBelfast), and P. Jakobsson (Univ. Iceland) report on behalf of a\nlarger collaboration:\n\nWe secured spectroscopy of the afterglow of GRB 111228A (Ukwatta et\nal., GCN 12737) with the 2.5m Nordic Optical Telescope (NOT) equipped\nwith the ALFOSC optical camera. Observations started immediately after\nthe 600s R-band photometry in Xu et al. (GCN 12750).\n\nThe NOT spectrum covers 2750-9000A and shows clear absorption lines of\nMgII2803 and CaH&K, at a common redshift of z=0.713.\n\nFurther observations are planned.",
  "circularId": 12764,
  "createdOn": 1325162597000,
  "email": "dong.dark@gmail.com",
  "subject": "GRB 111228A: NOT redshift",
  "submitter": "Dong Xu at Weizmann Inst  <dong.dark@gmail.com>",
  "eventId": "GRB 111228A"
}