{
  "bibcode": "2016GCN.19342....1K",
  "body": "A. Kozlova, S. Golenetskii, R. Aptekar, D. Frederiks, P. Oleynik,\nM. Ulanov, D. Svinkin, A. Tsvetkova, A. Lysenko, and T. Cline\non behalf of the Konus-Wind team, report:\n\nThe long-duration GRB 160424A\n(Swift-BAT trigger #683906: Lien et al., GCN Circ. 19335;\nKrimm et al., GCN Circ. 19338;\nFermi GBM detection: Hoi-Fung Yu, GCN Circ. 19340)\ntriggered Konus-Wind at T0=42546.397 s UT (11:49:06.397).\n\nThe burst light curve shows a single pulse with a total\nduration of ~2.3 s. The 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/GRB160424_T42546/\n\nAs observed by Konus-Wind, the burst\nhad a fluence of 1.59(-0.35,+0.60)x10^-6 erg/cm2,\nand a 64-ms peak flux, measured from T0+0.464 s,\nof 1.71(-0.62,+0.84)x10^-6 erg/cm2/s\n(both in the 20 keV - 10 MeV energy range).\n\nThe time-integrated spectrum of the burst\n(measured from T0 to T0+8.448 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 = -1.24(-0.51,+0.66)\nand Ep = 133(-40,+134) keV (chi2 = 58/60 dof).\nFitting by a GRB (Band) model yields the same alpha and Ep,\nand an upper limit on the high energy photon index: beta < -2.0\n(chi2 = 57/59 dof)\n\nAll the quoted errors are at the 90% confidence level.\nAll the quoted values are preliminary.",
  "circularId": 19342,
  "createdOn": 1461603446000,
  "email": "ann_kozlova@mail.ioffe.ru",
  "subject": "Konus-Wind observation of GRB 160424A",
  "submitter": "Anna Kozlova at Ioffe Institute  <ann_kozlova@mail.ioffe.ru>",
  "eventId": "GRB 160424A"
}