{
  "bibcode": "2008GCN..7849....1P",
  "body": "J. X. Prochaska (UCO/Lick), J. Shiode, J. S. Bloom, D. A. Perley, A. A. \nMiller, J. Shiode, D. Starr, R. Kennedy, and J. Brewer (UC Berkeley) report:\n\nUpon receiving the GCN alert we immediately slewed with Keck I (+LRIS) \nto the field of GRB 080607 (GCN 7847, Mangano et al.).  The optical \ntransient (GCN 7846, Rujopakarn et al.) was visually identified on the \nguider.  Spectroscopic observations began at 06:20:35 UT, 13 minutes \nafter the trigger, using the 600 and 400 line gratings on the blue and \nred cameras, respectively, for wavelength coverage between 3000-9300 A.\n\nOur preliminary reduction of the LRIS-b spectrum reveals a very strong, \ndamped Lya profile and metal-line transitions of OI, SiII, CII, SiII* \namong others.  These establish the redshift of the GRB to be z=3.036.",
  "circularId": 7849,
  "createdOn": 1212824839000,
  "email": "dperley@astro.berkeley.edu",
  "subject": "GRB 080607: Keck/LRIS spectroscopy and redshift",
  "submitter": "Daniel Perley at U.C. Berkeley  <dperley@astro.berkeley.edu>",
  "eventId": "GRB 080607"
}