{
  "bibcode": "2014GCN.15924....1D",
  "body": "A. de Ugarte Postigo (IAA-CSIC, DARK/NBI), D. Xu (DARK/NBI), \nJ. Gorosabel (EHU-UPV, IAA-CSIC), D. Malesani (DARK/NBI), \nB. Milvang-Jensen (DARK/NBI), M.I. Andersen (DARK/NBI), \nP. Jakobsson (U. Iceland), J.P.U. Fynbo (DARK/NBI), and\nA. Somero (Tuorla Obs.) report on behalf of a larger collaboration:\n\nFollowing the photometry reported in GCN 15921, we have performed spectroscopy \nof GRB 140304A (Gorbovskoy et al. GCN 15914, Evans et al. GCN 15915) with the \nNordic Optical Telescope (NOT) equipped with ALFOSC. The observation began at \n21:20 UT (7.97 hr after the burst) and consisted of a single 1500 s exposure\ncovering the range between 3200 and 9100 A.\n\nWe detect continuum emission with a deep absorption consistent with a \nDLA at a redshift of 5.28+/-0.02, as well as emission down to ~5800 A, which\nis consistent with the Ly-limit at a similar redshift. Despite the lack of metal \nfeatures identified in our spectrum, a redshift of z=5.39 as reported by \nJeong et al. (GCN 15922) is inconsistent with our data.",
  "circularId": 15924,
  "createdOn": 1393980072000,
  "email": "deugarte@iaa.es",
  "subject": "GRB 140304A: Redshift from the NOT",
  "submitter": "Antonio de Ugarte Postigo at IAA-CSIC  <deugarte@iaa.es>",
  "eventId": "GRB 140304A"
}