{
  "bibcode": "2017GCN.22281....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\nUsing Konus-Wind (KW) data, we have performed a search for\na gamma-ray transient around the time of the cosmic neutrino\ncandidate IceCube-170922A (2017-09-22 20:54:30.43 UT,\nhereafter T0; Kopper&Blaufuss, GCN 21916;\nhttps://gcn.gsfc.nasa.gov/notices_amon/50579430_130033.amon)\n\nNo triggered KW event happened from ~1.7 days before and up to ~3.5 days\nafter T0. The closest waiting-mode event was ~5.5 hours after T0.\nUsing waiting-mode data within the interval T0  +/- 1000 s,\nwe found no significant (> ~5 sigma) excess over the background\nin both KW detectors on temporal scales from 2.944 s to 100 s in the \n80-1000 keV band.\n\nWe estimate an upper limit (90% conf.) on the 10 keV ��� 10 MeV fluence\nto 1.0x10^-6 erg/cm^2 for a burst lasting less than 2.944 s and having a\ntypical KW short GRB spectrum (an exponentially cut off power law with\nalpha =-0.5 and Ep=500 keV). For a typical long GRB spectrum (the Band\nfunction with alpha=-1, beta=-2.5, and Ep=300 keV), the corresponding\nlimiting peak flux is 3.1x10^-7 erg/cm^2/s (10 keV - 10 MeV, 2.944 s \nscale).\n\nAll the quoted values are preliminary.",
  "circularId": 22281,
  "createdOn": 1514198527000,
  "email": "ann_kozlova@mail.ioffe.ru",
  "subject": "IceCube-170922A: Konus-Wind upper limits",
  "submitter": "Anna Kozlova at Ioffe Institute  <ann_kozlova@mail.ioffe.ru>",
  "eventId": "IceCube-170922A"
}