{
  "bibcode": "2017GCN.21223....1A",
  "body": "M. Ageron (CPPM/CNRS), B. Baret (APC/CNRS), A. Coleiro (IFIC & APC), D.\n  Dornic (CPPM/CNRS), A. Kouchner (APC/Universite Paris Diderot), T.\n  Pradier (IPHC/Universite de Strasbourg) report on behalf of the ANTARES\n  Collaboration:\n\n  Using on-line data from the ANTARES detector, we have performed a\n  follow-up analysis of the recently reported LIGO/Virgo G288732 event\n  using the initial LIGO Bayestar probability map at event time (LVC\n  GCN Circ. 21221). The ANTARES visibility at the time of the alert\n  together with the 90% contour of the probability map are shown\n  in: https://www.cppm.in2p3.fr/~dornic/events/G288732/G288732.png (gwantares/\n  ANT@GW28). Considering the location probability provided by the LIGO\n  collaboration, there is a 55% chance that the GW emitter was in the\n  ANTARES field of view.\n\n  No up-going muon neutrino candidate events were recorded within the 90%\n  contour during a +/- 500s time-window centered on the G288732 event\n  time. The expected number of atmospheric background events in the\n  region visible by ANTARES is ~2.4e-2 in the +/- 500s time window. An\n  extended search during +/- 1 hour gives no up-going neutrino\n  coincidence.\n\n  An estimate of the upper limit on the associated neutrino fluence will\n  be sent in a subsequent circular.\n\n  ANTARES, being installed in the Mediterranean Deep Sea, is the largest\n  neutrino detector in the Northern Hemisphere.  It is primarily\n  sensitive to astrophysical neutrinos in the TeV-PeV energy range.  At\n  10 TeV, the median angular resolution for muon neutrinos is below 0.5\n  degrees.  In the range 1-100 TeV, ANTARES has the best sensitivity to a\n  large fraction of the Southern sky.",
  "circularId": 21223,
  "createdOn": 1496942814000,
  "email": "dornic@cppm.in2p3.fr",
  "subject": "LIGO/Virgo G288732 ANTARES search",
  "submitter": "Damien Dornic at CPPM/CNRS  <dornic@cppm.in2p3.fr>",
  "eventId": "LIGO/Virgo G288732"
}