{
  "bibcode": "2014GCN.16671....1G",
  "body": "J. Gorosabel (IAA-CSIC/UPV-EHU), A. de Ugarte Postigo (IAA-CSIC/DARK-NBI),\nC. Thoene (IAA-CSIC), D. Perley (Caltech), A. Garcia Rodriguez (GTC),\nreport on behalf of a larger collaboration:\n\nWe observed the optical candidate iPTF14eag of the Fermi GRB140808A\n(Singer et al. GCN 16668; Zhang, GCN 16669; Page et al. GCN 16670) with\nthe 10.4m GTC (+OSIRIS). Spectroscopic observations were carried out at\n21:43:48--22:29:36 UT (20.8-21.9 hours post burst).\n\nThree 900s spectra were obtained with the R1000B grism, covering the range\nbetween 3630 and 7500 A, at a resolution of ~1000. A preliminary reduction\nbased on archival calibration lamps, reveals a strong DLA and several\nabsorption metallic lines (CII, SiIV, SiII, CIV, AlII) consistent with a\ncommon redshift of z=3.29, which we identify as the redshift of the GRB.",
  "circularId": 16671,
  "createdOn": 1407541598000,
  "email": "jgu@iaa.es",
  "subject": "GRB 140808A: Redshift from the 10.4m GTC telescope",
  "submitter": "Javier Gorosabel at IAA-CSIC  <jgu@iaa.es>",
  "eventId": "GRB 140808A"
}