{
  "bibcode": "2011GCN.11971....1G",
  "body": "S. Golenetskii, R.Aptekar, E. Mazets, V. Pal'shin, D. Frederiks,\nP. Oleynik, M. Ulanov, D. Svinkin, and\nT. Cline on behalf of the Konus-Wind team, report:\n\nThe long bright GRB 110422A (Swift-BAT trigger #451901: Mangano et al.,\nGCN 11957; Palmer et al., GCN 11959) triggered Konus-Wind at\nT0(KW)=56502.948 s UT (15:41:42.948).\nThe burst light curve shows a multipeaked structure with a\nduration of ~40 s.\n\nAs observed by Konus-Wind the burst\nhad a fluence of (8.56 +/- 0.02)x10^-5 erg/cm2,\nand a 64-ms peak flux measured from T0+18.128 s\nof (1.20 +/- 0.15)x10^-5 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+38.656 s) can be fitted (in the 20 keV - 2 MeV\nrange) by the GRB (Band) model for which:\nthe low-energy photon index is alpha = -0.65 +/- 0.06,\nthe high energy photon index beta = -2.96(-0.19, +0.14),\nthe peak energy Ep = 152 +/- 5 keV (chi2 = 96.8/64 dof).\nThe spectrum at the maximum count rate\n(measured from T0+17.664 to T0+18.432 s) is well fitted\n(in the 20 keV - 2 MeV range) by the GRB (Band)\nmodel, for which:\nthe low-energy photon index alpha = -0.53 (-0.14, +0.17),\nthe high energy photon index beta = -2.65 (-0.62, +0.28),\nthe peak energy Ep = 246(-34, +37) keV (chi2 = 55.7/48 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.ru/LEA/GRBs/GRB110422_T56502/",
  "circularId": 11971,
  "createdOn": 1303637407000,
  "email": "val@mail.ioffe.ru",
  "subject": "Konus-Wind observation of GRB 110422A",
  "submitter": "Valentin Pal'shin at Ioffe Inst  <val@mail.ioffe.ru>",
  "eventId": "GRB 110422A"
}