{
  "bibcode": "2013GCN.14621....1C",
  "body": "A. Cucchiara (UCSC) and N. R. Tanvir (U. Leicester) \nreport on behalf of a larger collaboration:\n\nOn May 11.511 UT (~45 minutes after the Swift trigger)\nwe observed the optical counterpart of GRB 130511A\n(Krimm et al. GCN 14620) with the GMOS spectrograph\nmounted on the Gemini-North telescope.\n\nThe observation consists of 2x900s exposures\nusing the B600 grating and covers the 5100-7900\nAngstroms wavelength range.\n\nThe resulting spectrum presents several absorption lines, \nincluding FeII(2344,2382,2374,2600), FeII*(2338,2349), \nFeI2463, MnII(25762594), MgII doublet (2796,2803A), and \nMgI2853 at the common redshift of z=1.3033.\n\nWe therefore propose this as the redshift of GRB 130511A.\n\nWe thank the Gemini staff for performing this\nobservation, in particular Tom Geballe.",
  "circularId": 14621,
  "createdOn": 1368278236000,
  "email": "acucchia@ucolick.org",
  "subject": "GRB 130511A: Gemini-North Redshift",
  "submitter": "Antonino Cucchiara at UCSC/UCO Lick  <acucchia@ucolick.org>",
  "eventId": "GRB 130511A"
}