{
  "bibcode": "2009GCN..9679....1G",
  "body": "S. Golenetskii, R.Aptekar, D. Frederiks, E. Mazets, V. Pal'shin,\nP. Oleynik, M. Ulanov, and D. Svinkin on behalf of\nthe Konus-Wind and Konus-RF teams, and\nT. Cline on behalf of the Konus-Wind team, report:\n\nThe long GRB 090715B (Vetere et al., GCN 9668)\ntriggered Konus-Wind at T0=75799.008 s UT (21:03:19.008),\nand Konus-RF instrument onboard CORONAS-PHOTON s/c\nat T0(KRF)=75798.895 s UT (21:03:18.895).\n\nThe burst had a multi-peaked structure with a duration of ~100 s.\nThe Konus-Wind light curves of this GRB are available at\nhttp://www.ioffe.ru/LEA/GRBs/GRB090715_T75799/\n\nAs observed by Konus-Wind, the burst had a fluence\nof 9.3(-1.1,+1.5)x10-6 erg/cm2,\nand a 256-ms peak flux, measured from T0+4.912 s,\nof 9.0(-2.5,+2.5)x10-7 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+82.176 s) is well fitted\n(in the 20 keV - 2 MeV range) by a power-law with\nexponential cutoff (CPL) model:\ndN/dE ~ E^{alpha}*exp(-(2+alpha)*E/Epeak), for which:\nthe photon index alpha = -1.1(-0.34,+0.4), and\nthe peak energy Ep = 134(-30,+56) keV (chi2 = 57/61 dof).\n\nThe spectrum at the maximum count rate,\nmeasured from T0 to T0+8.448 s, is also well fitted\n(in the 20 keV - 2 MeV range) by CPL model, for which:\nthe photon index alpha = -0.86(-0.20,+0.22), and\nthe peak energy Ep = 178(-23,+33) keV (chi2 = 49/61 dof).\n\nAll the quoted values are preliminary.\nThe quoted errors are at the 90% confidence level.",
  "circularId": 9679,
  "createdOn": 1247748767000,
  "email": "fred@mail.ioffe.ru",
  "subject": "Konus-Wind and Konus-RF observations of GRB 090715B",
  "submitter": "Dmitry Frederiks at Ioffe Institute  <fred@mail.ioffe.ru>",
  "eventId": "GRB 090715B"
}