{
  "bibcode": "2008GCN..7995....1G",
  "body": "S. Golenetskii, R.Aptekar, E. Mazets, V. Pal'shin, D. Frederiks, P.\nOleynik, M. Ulanov, D. Svinkin, and\nT. Cline on behalf of the Konus-Wind team report:\n\nThe bright GRB 080721 (Swift-BAT trigger #317508: Marshall et al., GCN\n7988, Cummings et al., GCN 7992) triggered Konus-Wind at T0=37510.927 s \nUT (10:25:10.927).\n\nThe burst light shows multipeaked structure with a duration of ~30 s.\n\nAs observed by Konus-Wind the burst\nhad a fluence of 8.38(-0.60, +0.62)x10^-5 erg/cm2,\nand a 64-ms peak flux measured from T0+9.648 s\nof (1.96 +/- 0.31)x10^-5 erg/cm2/s\n(both in the 20 keV - 5 MeV energy range).\n\nThe time-integrated spectrum of the burst\n(from T0 to T0+23.808 s) is well fitted (in the 20 keV - 5 MeV range)\nby GRBM (Band) model for which:\nthe low-energy photon index is alpha = -0.933(-0.084, +0.106),\nthe high energy photon index beta = -2.43(-0.42, +0.24),\nthe peak energy Ep = 485(-59, +67) keV (chi2 = 60.6/76 dof).\n\nAll the quoted errors are at the 90% confidence level.\n\nThe Konus-Wind light curve of this GRB is available\nat http://www.ioffe.rssi.ru/LEA/GRBs/GRB080721_T37510/",
  "circularId": 7995,
  "createdOn": 1216665861000,
  "email": "val@mail.ioffe.ru",
  "subject": "Konus-Wind observation of GRB 080721",
  "submitter": "Valentin Pal'shin at Ioffe Inst  <val@mail.ioffe.ru>",
  "eventId": "GRB 080721"
}