{
  "bibcode": "2007GCN..6322....1C",
  "body": "S. B. Cenko, S. Gezari, T. Small (Caltech), D. B. Fox (Penn State), and E.\nBerger (Carnegie) report on behalf of a larger collaboration:\n\nWe have obtained a spectrum of the optical afterglow of GRB070419A\n(Chornock et al., GCN 6304) with the Low-Resolution Imaging Spectrometer\nmounted on the 10-m Keck I telescope.  Observations consisted of 2 x 900 s\nspectra taken at a mean epoch of approximately 11:36 19 April UT (~ 1.62\nhr after the burst).\n\nWe identify a single strong absorption system, including Mg II, Fe II, Mn\nII, and Fe I features, at a preliminary redshift of z = 0.97.  Coupled\nwith the lack of Lyman-alpha absorption down to ~ 3500 A, we consider\nthis system is likely from the host galaxy of GRB070419A.",
  "circularId": 6322,
  "createdOn": 1177019668000,
  "email": "cenko@srl.caltech.edu",
  "subject": "GRB 070419: Keck/LRIS Absorption Redshift",
  "submitter": "S. Bradley Cenko at Caltech  <cenko@srl.caltech.edu>",
  "eventId": "GRB 070419"
}