{
  "bibcode": "2006GCN..5518....1G",
  "body": "S. Golenetskii, R.Aptekar, E. Mazets, V. Pal'shin, D. Frederiks, and\nT. Cline on behalf of the Konus-Wind team report:\n\nThe most intense part of the long GRB 060904A\n(Swift-BAT trigger #227996;  Grupe et al., GCN 5502;\nKrimm et al., GCN 5516)\ntriggered Konus-Wind at T0=3853.821 s UT (01:04:13.821).\n\nAs observed by Konus-Wind the burst emission\nstarted at T-T0 ~-56 s, peaked at T-T0 ~0 s,\nand ended at T-T0 ~26 s, so the total burst duration\nis ~80 s.\nThe burst fluence is 1.59(-0.21, +0.40)x10^-5 erg/cm2,\nand the 256-ms peak flux measured from T0-0.128 s\n1.38(-0.33, +0.46)x10^-6  erg/cm2/s\n(both in the 20 keV - 2 MeV energy range).\n\nThe spectrum of the main pulse\n(from T0 to T0+16.64 s)\nis well fitted (in the 20 keV - 2 MeV range)\nby GRBM (Band) model for which:\nthe low-energy photon index is alpha = -1.00(-0.17, +0.23),\nthe high energy photon index beta = -2.57(-1.00, 0.37),\nthe break energy E0 = 163 (-54, +65) keV (chi2 = 40/61 dof).\nThe peak energy Ep = 163 +/- 31 keV.\n\nAll the quoted errors are at the 90% confidence level.",
  "circularId": 5518,
  "createdOn": 1157377019000,
  "email": "val@mail.ioffe.ru",
  "subject": "Konus-Wind observation of GRB 060904A",
  "submitter": "Valentin Pal'shin at Ioffe Inst  <val@mail.ioffe.ru>",
  "eventId": "GRB 060904A"
}