{
  "bibcode": "2011GCN.11893....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 exceptionally bright GRB 110106A, (Savchenko et al., GCN 11890)\ntriggered Konus-Wind at T0=13446.671s UT (03:44:06.671)\n\nThe burst light curve consists of a single FRED-like pulse,\nthe total duration of the burst is ~8 s.\nThe emission is seen up to ~10 MeV.\nThe Konus-Wind light curve of this GRB is available at\nhttp://www.ioffe.ru/LEA/GRBs/GRB110406_T13446/\n\nThe non-zero spectral lag between the Konus-Wind light curves\nis evident, the following values are obtained:\n-------------------------------------------------------------\nLC1(keV)     LC2(keV)   Search interval(s) Scale   Lag(ms)\n-------------------------------------------------------------\nG2(70-300)   G1(18-70)   -0.048:+2.016     16 ms  +58 � 6\nG3(300-1160) G1(18-70)   -0.016:+1.968     16 ms  +127 � 6\nG3(300-1160) G2(70-300)  -0.048:+2.016     16 ms  +64 � 5\n-------------------------------------------------------------\n\nAs observed by Konus-Wind the burst\nhad a fluence of (4.8 � 0.5)x10-5 erg/cm2,\nand a 16-ms peak flux, measured from T0+0.160s,\nof (1.5 � 0.1)x10-4 erg/cm2/s\n(both in the 20 keV - 10 MeV energy range).\n\nThe time-integrated spectrum of the burst\n(from T0 to T0+9.216 s) can be fitted\nin the 20 keV - 10 MeV range by the GRB (Band)\nmodel, for which:\nthe low-energy photon index alpha = -1.24 (-0.07, +0.08),\nthe high energy photon index beta = -2.30 (-0.25, +0.15),\nthe peak energy Ep = 326(-42, +49) keV,\nchi2 = 117/89 dof.\n\nThe spectrum at the maximum count rate\n(measured from T0+0.064 to T0+0.256 s) is best fit\nin the 20 keV - 10 MeV range by the GRB (Band)\nmodel, for which:\nthe low-energy photon index alpha = -0.61 (-0.13, +0.15),\nthe high energy photon index beta = -2.05 (-0.12, +0.10),\nthe peak energy Ep = 417(-64, +77) keV,\nchi2 = 56.5/56 dof.\n\nAll the quoted results are preliminary.\nThe lag errors are given on 1 sigma level.\nAll other quoted errors are at the 90% confidence level.",
  "circularId": 11893,
  "createdOn": 1302182160000,
  "email": "fred@mail.ioffe.ru",
  "subject": "Konus-Wind observation of GRB 110406A",
  "submitter": "Dmitry Frederiks at Ioffe Institute  <fred@mail.ioffe.ru>",
  "eventId": "GRB 110406A"
}