{
  "bibcode": "2014GCN.15936....1J",
  "body": "S. Jeong, R. S�nchez-Ram�rez (IAA-CSIC), J. Gorosabel (EHU-UPV,\nIAA-CSIC) and A. J. Castro-Tirado (IAA-CSIC, UMA), on behalf of a larger\ncollaboration, report:\n\n�Once the calibration data have been available we have reduced again the\noptical spectrum taken with the 10.4 m GTC (+OSIRIS) starting aprox. 8.2\nhr postburst. At the host galaxy location for GRB 140304A, we find a\ndamped Ly-alpha system with log N(H) ~ 21.6 and z = 5.283. We also get\nthe same redshift from its metal lines that we interpret as SII, SiII,\nSiII*, CII, CII*, SiIV and FeII. This value supersedes the preliminary\nmeasurement given in GCNC 15922 (Jeong et al.) and is consistent the one\nreported in GCNC 15924 (de Ugarte Postigo et al.).�",
  "circularId": 15936,
  "createdOn": 1394122358000,
  "email": "ajct@iaa.es",
  "subject": "GRB 140304A: 10.4m GTC refined redshift z = 5.283",
  "submitter": "Alberto Castro-Tirado at Inst.de Astro. de Andalucia  <ajct@iaa.es>",
  "eventId": "GRB 140304A"
}