{
  "bibcode": "2007GCN..6470....1B",
  "body": "E. Berger (Carnegie), D. B. Fox and A. Cucchiara (Penn State) report:\n\n\"Starting on 2007 May 29.59 UT we used GMOS on the Gemini North telescope \nto obtain a 900 sec spectrum of the afterglow of GRB 050729 (GCN 6466). \nThe spectrum covers the wavelength range 5000-7900A.  We find several \nstrong absorption features corresponding to CIV, SiII, FeII, AlII, AlIII, \netc. at a redshift of z=2.4996, which we identify as the redshift of the \nburst.  At this redshift the observed fluence of 2.6e-6 erg/cm^2 (GCN \n6468) translates to an isotropic equivalent energy of 3.8e52 erg.\"",
  "circularId": 6470,
  "createdOn": 1180472106000,
  "email": "eberger@ociw.edu",
  "subject": "GRB 070529: Gemini Redshift",
  "submitter": "Edo Berger at Carnegie Obs  <eberger@ociw.edu>",
  "eventId": "GRB 070529"
}