{
  "bibcode": "2020GCN.26847....1R",
  "body": "A. Ridnaia, S. Golenetskii, R.Aptekar, D. Frederiks,\nM. Ulanov, D. Svinkin, A. Tsvetkova, A. Lysenko, 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\nLIGO/Virgo event S200112r (2020-01-12 15:58:38.094 UTC, hereafter T0;\nLIGO/Virgo Collaboration GCN Circ. 26715).\n\nNo triggered KW GRBs happened ~3 hours before and ~1.5 days\nafter T0. Using waiting-mode data within the interval T0 +/- 100 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.\n\nWe estimate an upper limit (90% conf.) on the 20 - 1500 keV fluence\nto 9.3x10^-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 =-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 2.8x10^-7 erg/cm^2/s (20 - 1500 keV, 2.944 s scale).\n\nAll the quoted values are preliminary.",
  "circularId": 26847,
  "createdOn": 1579677490000,
  "email": "ridnaia@mail.ioffe.ru",
  "subject": "LIGO/Virgo S200112r: Upper limits from Konus-Wind observations",
  "submitter": "Anna Ridnaia at Ioffe Institute  <ridnaia@mail.ioffe.ru>",
  "eventId": "LIGO/Virgo S200112r"
}