{
  "bibcode": "2010GCN.10556....1G",
  "body": "S. Golenetskii, R.Aptekar, D. Frederiks, E. Mazets, V. Pal'shin,\nP. Oleynik, M. Ulanov, D. Svinkin, and T. Cline on behalf\nof the Konus-Wind team, report:\n\nThe long bright GRB 100324B (localized by IPN;\nHurley et al., GCN 10554) triggered Konus-Wind\nat T0=14852.507s UT (04:07:32.507)\n\nThe burst light curve shows a complex structure\nwith a total duration of ~15 s. A hard to soft\nspectral evolution is apparent in the course of the burst.\nThe Konus-Wind light curve of this GRB is available at\nhttp://www.ioffe.ru/LEA/GRBs/GRB100324_T14852/\n\nAs observed by Konus-Wind the burst\nhad a fluence of 4.6(+/-0.2)x10-5 erg/cm2,\nand a 256-ms peak flux measured from T0+4.864s\nof 8.8(+/-0.6)x10-6 erg/cm2/s\n(both in the 20 keV - 2 MeV energy range).\n\nThe time-integrated spectrum of the burst\n(from T0 to T0+13.824 s) is well fitted\nin the 20 keV - 2 MeV range by the GRB (Band)\nmodel, for which:\nthe low-energy photon index alpha = -0.51 (-/+0.09),\nthe high energy photon index beta = -2.95(<-2.6),\nthe peak energy Ep = 397(-30, +41)keV (chi2 = 59/57 dof).\n\nThe spectrum at the maximum count rate\n(measured from T0+3.840 to T0+5.632 s) can be fitted\nin the 20 keV - 2 MeV range by the GRB (Band)\nmodel, for which:\nthe low-energy photon index alpha = -0.42 (-/+0.16),\nthe high energy photon index beta = -2.6(-0.85,+0.25),\nthe peak energy Ep = 283(-30, +44)keV (chi2 = 71/57 dof).\n\nAll the quoted results are preliminary.\nAll the quoted errors are at the 90% confidence level.",
  "circularId": 10556,
  "createdOn": 1270023047000,
  "email": "fred@mail.ioffe.ru",
  "subject": "Konus-Wind observation of GRB 100324B",
  "submitter": "Dmitry Frederiks at Ioffe Institute  <fred@mail.ioffe.ru>",
  "eventId": "GRB 100324B"
}