{
  "bibcode": "2006GCN..5131....1S",
  "body": "R. Starling (Amsterdam), C.C. Thoene, J.P.U. Fynbo (DARK),\nP. Vreeswijk (ESO) and J. Hjorth (DARK) report on behalf of\na larger collaboration:\n\nWe observed the optical transient of GRB 060512 (first reported\nby Cummings et al. GCN 5117) with the ESO FORS1 Long Slit\nSpectrograph under poor observing conditions, beginning at\n2006-05-13 02:06:43 UT with an exposure of 2x1800s.\nThe spectrum covers the range 3850-8750A.\n\nPreliminary analysis shows the afterglow to be blue, consistent\nwith the magnitudes given in De Pasquale & Cummings (GCN 5130).\n\nWe report a break in the continuum around 4800A and bluewards\nwhich, if identified as the onset of the Lyman-alpha forest,\nindicates a redshift in the range z ~ 2.7-2.9. The signal-to-noise\nis too low to allow identification of further lines.\n\nWe thank the staff and observers at ESO Paranal.",
  "circularId": 5131,
  "createdOn": 1147628050000,
  "email": "starling@science.uva.nl",
  "subject": "VLT optical spectroscopy of GRB 060512",
  "submitter": "Rhaana Starling at GRACE/U of Amsterdam  <starling@science.uva.nl>",
  "eventId": "GRB 060512"
}