{
  "bibcode": "2011GCN.12368....1L",
  "body": "A.J. Levan (U. Warwick), N.R. Tanvir, K. Wiersema (U. Leicester),\nE. Berger (Harvard), D. Fox (Penn State) report on behalf of a larger\ncollaboration:\n\n\nWe observed the candidate optical afterglow of GRB 110918A reported by\nTanvir et al. (GCN12365) with the GMOS-N spectrograph on Gemini-N,\nMauna Kea. ��Observations began at 20-Sep-2011 12:51 UT. ��The trace is\nwell detected and consistent with being a power-law continuum,\nconfirming that this source is very likely the afterglow of the burst\ndetected by the IPN (Hurley et al. GCN12357, see also Cenko et\nal. GCN12367). ��We identify absorption features of MgII (2796A/2804A),\nMgI (2853A) and CaII (3935A/3970A) at a common redshift of z=0.982 (based\non a provisional wavelength calibration).\n\n\nWe thank the Gemini staff, particularly Jen Holt, for obtaining\nthese observations.",
  "circularId": 12368,
  "createdOn": 1316532629000,
  "email": "nrt3@star.le.ac.uk",
  "subject": "GRB 110918A: Gemini-N redshift",
  "submitter": "Nial Tanvir at U.Leicester  <nrt3@star.le.ac.uk>",
  "eventId": "GRB 110918A"
}