{
  "bibcode": "2007GCN..6010....1J",
  "body": "A.O. Jaunsen (Univ. Oslo), D. Malesani, J.P.U. Fynbo, J. Sollerman\n(DARK/NBI), P.M. Vreeswijk (ESO), report on behalf of a larger\ncollaboration.\n\nWe observed the optical afterglow of GRB 070110 (Krimm et al., GCN 6005;\nRoming et al., GCN 6009) with the ESO VLT equipped with FORS2.\nObservations started on 2007 Jan 11.04 UT (17.6 hr after the GRB). Three\n1800-s spectra were acquired in the range 3800-8500 AA.\n\nBased on the detection of a DLA and several metallic lines (among which\nSiII 1260, SiIV 1394,1403, CIV 1548,1551 and many others), we infer a\nredshift z = 2.352 +- 0.001. We also detect Lyalpha in emission\nsuperimposed on the DLA trough. We caution that the wavelength calibration\nhas been performed using archival lamps.\n\nWe acknowledge the excellent support from the ESO/Paranal staff.",
  "circularId": 6010,
  "createdOn": 1168514629000,
  "email": "malesani@astro.ku.dk",
  "subject": "GRB 070110: VLT absorption redshift",
  "submitter": "Daniele Malesani at Niels Bohr Inst,Dark Cosmology Center  <malesani@astro.ku.dk>",
  "eventId": "GRB 070110"
}