{
  "bibcode": "2008GCN..7884....1G",
  "body": "S. Golenetskii, R.Aptekar, E. Mazets, V. Pal'shin, D. Frederiks, P.\nOleynik, M. Ulanov, D. Svinkin, and T. Cline on behalf of the Konus-Wind \nteam report:\n\nThe long GRB 080613B (Swift-BAT trigger\n#313954: Markwardt et al., GCN 7873, Ukwatta et al., GCN 7876) triggered \nKonus-Wind at T0=40358.636 s UT (11:12:38.636).\n\nThe burst light curve shows a multipeaked structure with a duration of ~30s.\n\nAs observed by Konus-Wind the burst\nhad a fluence of 2.21(-0.38, +0.44)x10^-5 erg/cm2,\nand a 256-ms peak flux measured from T0-0.144 s\nof 4.76(-1.24, +1.39)x10^-6 erg/cm2/s\n(both in the 20 keV - 3 MeV energy range).\n\nThe time-integrated spectrum of the burst\n(from T0 to T0+33.024 s) is well fitted (in the 20 keV-3 MeV range)\nby a power law with exponential cutoff model:\ndN/dE ~ (E^alpha)*exp(-E*(2+alpha)/Ep)\nwith alpha = -1.05 +/- 0.18\nand Ep = 733(-200, +285) keV (chi2 = 56.6/65 dof).\nFitting by GRBM (Band) model yields the same alpha and Ep,\nand only an upper limit on the high energy photon index: beta < -2.05\n(chi2 = 56.5/64 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/GRB080613_T40358/",
  "circularId": 7884,
  "createdOn": 1213542068000,
  "email": "val@mail.ioffe.ru",
  "subject": "Konus-Wind observation of GRB 080613B",
  "submitter": "Valentin Pal'shin at Ioffe Inst  <val@mail.ioffe.ru>",
  "eventId": "GRB 080613B"
}