{
  "bibcode": "2015GCN.17982....1G",
  "body": "S. Golenetskii, R. Aptekar, D. Frederiks, V. Pal'shin, 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, bright GRB 150627A\n(Fermi-LAT detection: Arimoto, et al., GCN Circ. 17971;\nFermi-GBM detection: Yu, GCN Circ. 17975)\ntriggered Konus-Wind at T0=15806.292 s UT (04:23:26.292).\n\nThe burst light curve shows a bright multi-peaked structure\nfrom ~T0-6 s to ~T0+80 s followed by a weak tail,\nwhich is traceable out to ~T0 + 150 s.\nThe emission is seen up to ~15 MeV.\n\nThe Konus-Wind light curve of this GRB is available at\nhttp://www.ioffe.ru/LEA/GRBs/GRB150627_T15806/\n\nAs observed by Konus-Wind, the burst\nhad a fluence of 2.34(-0.11,+0.12)x10^-4 erg/cm2,\nand a 64-ms peak flux, measured from T0+12.240 s,\nof 2.02(-0.27,+0.27)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+81.408 s)\nis best fit in the 20 keV - 15 MeV range\nby the GRB (Band) model with the following parameters:\nthe low-energy photon index alpha = -0.98(-0.04,+0.05),\nthe high energy photon index beta = -2.25(-0.08,+0.07),\nthe peak energy 217(-13,+14) keV\n(chi2 = 125/96 dof)\n\nThe spectrum near the maximum count rate\n(measured from T0+9.728 to T0+12.800 s)\nis best fit in the 20 keV - 10 MeV range\nby the GRB (Band) model with the following parameters:\nthe low-energy photon index alpha = -0.55(-0.07,+0.08),\nthe high energy photon index beta = -2.52(-0.29,+0.18),\nthe peak energy 412(-38,+40) keV\n(chi2 = 114/94 dof)\n\nAll the quoted errors are at the 90% confidence level.\nAll the quoted values are preliminary.",
  "circularId": 17982,
  "createdOn": 1435588184000,
  "email": "svinkin@mail.ioffe.ru",
  "subject": "Konus-Wind observation of GRB 150627A",
  "submitter": "Dmitry Svinkin at Ioffe Institute  <svinkin@mail.ioffe.ru>",
  "eventId": "GRB 150627A"
}