{
  "bibcode": "2007GCN..6498....1P",
  "body": "A. Pelangeon & J-L. Atteia (LATT-OMP) report:\n\nWe have used the spectral parameters of GRB 060121 detected by \nHETE-2/FREGATE\nand localized by the WXM (Arimoto et al., GCNC 4550) and by the SXC\n(Prighozin et al., GCNC 4551) to compute the spectral pseudo-redshift(**)\nof this burst.\n\nWe find a pseudo-redshift pz = 1.92 � 0.35\n\nThis value is in agreement with the lowest of the two values derived\nby de Ugarte-Postigo et al. for the photometric redshift\nof the host-galaxy: z = 1.7 � 0.4, and z = 4.6 � 0.5 (ApJ, 2006, 648, L83)\n\nThis pseudo-redshift relies on the assumption that GRB 060121 follows\nthe Amati relation. Hence we caution that if GRB 060121 is a short burst,\nas suggested by Donaghy et al. (astro-ph/0605570), this pseudo-redshift\nis not reliable.\n\n\n(**) cf. http://www.ast.obs-mip.fr/grb/pz",
  "circularId": 6498,
  "createdOn": 1181548809000,
  "email": "alexandre.pelangeon@ast.obs-mip.fr",
  "subject": "GRB 060121 : pseudo-z = 1.9  ('intermediate-duration' burst)",
  "submitter": "Alexandre Pelangeon at LATT,OMP,Toulouse  <alexandre.pelangeon@ast.obs-mip.fr>",
  "eventId": "GRB 060121"
}