Skip to main content
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

GCN Circular 27871

IceCube-200530A: No ANTARES neutrino counterpart
2020-05-31T08:00:43Z (4 years ago)
Antoine Kouchner at ANTARES Collaboration <>
Alexis Coleiro (APC/Universite de Paris) and Damien Dornic (CPPM/CNRS) on behalf of the ANTARES Collaboration. <br> <br>  

Using data from the ANTARES detector, we have performed a follow-up analysis of the recently reported single track-like event IceCube-200530A (GCN 27865< <>>). The original reconstructed origin was on the edge of the ANTARES field of view for upward going events (-0.04 degrees below Its horizon). <br> <br>
No muon neutrino candidate events were recorded in a 3 deg cone centered on the location of the IceCube event coordinates (accounting for the reported uncertainties) during a +/- 1h time-window centered on the IceCube event time. <br><br>

This leads to a preliminary conservative 90% confidence level upper limit on the muon-neutrino fluence from a point source of about 80^-2 over the energy range 6.2 TeV ��� 6.0 PeV (the range corresponding to 5-95% of the detectable flux) for an E^-2 power-law spectrum, and about 110^-2 (1.0 TeV - 560 TeV) for an E^-2.5 spectrum.  A search over an extended time window of +/- 1 day has also yielded no detection (34% visibility). <br><br>
ANTARES < <> < <>>> is the largest undersea neutrino detector (Mediterranean Sea) and it is primarily sensitive to astrophysical neutrinos in the TeV-PeV energy range. At 10 TeV, the median angular resolution for muon neutrinos is about 0.5 degrees. In the range 1-100 TeV ANTARES has a competitive sensitivity to this position in the sky.
Looking for U.S. government information and services? Visit