{
  "bibcode": "2017GCN.20939....1S",
  "body": "D. Svinkin, S. Golenetskii, R.Aptekar, D. Frederiks, P. Oleynik,\nM. Ulanov, A. Tsvetkova, A.Lysenko, A. Kozlova, and T. Cline,\non behalf of the Konus-Wind team, report:\n\nKonus-Wind (KW) was observing the whole sky at the time of the LIGO\nevent G275697 (2017-03-13 22:40:09.593 UTC, hereafter T0; LIGO/VIRGO\nCollaboration GCN Circ. 20860).\n\nNo triggered KW event happened from ~2 days before to ~3 days\nafter T0. Using waiting mode data within the interval T0 \u001b+/- 100 s,\nwe also found no significant (> 5 sigma) excess over the background\nin both KW detectors on temporal scales from 2.944 s to 100 s.\n\nWe estimate an upper limit (90% conf.) on the 10 keV ��� 10 MeV fluence to\n7.8x10^-7 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\u000b=-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 3.0x10^-7 erg/cm^2/s (10 keV - 10 MeV, 2.944 s scale).\n\nAll the quoted values are preliminary.",
  "circularId": 20939,
  "createdOn": 1490549172000,
  "email": "svinkin@mail.ioffe.ru",
  "subject": "LIGO/Virgo G277583: Konus-Wind observations",
  "submitter": "Dmitry Svinkin at Ioffe Institute  <svinkin@mail.ioffe.ru>",
  "eventId": "LIGO/Virgo G277583"
}