{
  "bibcode": "2015GCN.18360....1G",
  "body": "S. Golenetskii, R. Aptekar, D. Frederiks, V. Pal'shin, P. Oleynik,\nM. Ulanov, D. Svinkin, A. Tsvetkova, A. Lysenko, A. Kozlova,\nand T. Cline on behalf of the Konus-Wind team, report:\n\nThe short-duration, hard-spectrum GRB 150922A\n(IPN triangulation: Golenetskii et al., GCN 18357;\nFermi GBM detection: Roberts et al., GCN 18358)\ntriggered Konus-Wind at T0=20250.916 s UT (05:37:30.916).\n\nThe burst light curve shows a multipeak structure\nwith a total duration of ~0.16 s.\nThe emission is seen up to ~2 MeV.\n\nThe Konus-Wind light curve of this GRB is available at\nhttp://www.ioffe.ru/LEA/GRBs/GRB150922_T20250/\n\nAs observed by Konus-Wind, the burst\nhad a fluence of 7.94(-1.93,+2.25)x10^-7 erg/cm2,\nand a 16-ms peak flux, measured from T0-0.008 s,\nof 1.34(-0.52,+0.59)x10^-5 erg/cm2/s\n(both in the 20 keV - 10 MeV energy range).\n\nThe time-averaged spectrum of the burst\n(measured from T0 to T0+0.064 s)\nis best fit in the 20 keV - 2 MeV range\nby a power law with exponential cutoff model:\ndN/dE ~ (E^alpha)*exp(-E*(2+alpha)/Ep)\nwith  alpha = -0.17(-0.66,+1.10)\nand Ep = 393(-132,+222) keV (chi2 = 11/13 dof).\nFitting by a GRB (Band) model yields the same alpha and Ep,\nand an upper limit on the high energy photon index: beta < -2\n(chi2 = 11/12 dof)\n\nAll the quoted errors are at the 90% confidence level.\nAll the quoted values are preliminary.",
  "circularId": 18360,
  "createdOn": 1443013770000,
  "email": "svinkin@mail.ioffe.ru",
  "subject": "Konus-Wind observation of GRB 150922A",
  "submitter": "Dmitry Svinkin at Ioffe Institute  <svinkin@mail.ioffe.ru>",
  "eventId": "GRB 150922A"
}