GCN Circular 22016
Subject
IceCube-171015A - IceCube observation of a high-energy neutrino candidate event
Date
2017-10-15T14:30:35Z (7 years ago)
From
Erik Blaufuss at U. Maryland/IceCube <blaufuss@icecube.umd.edu>
The IceCube Collaboration (http://icecube.wisc.edu/) reports:
On 15 October, 2017 IceCube detected a track-like, very-high-energy
event with a high probability of being of astrophysical origin. The
event was identified by the High Energy Starting Event (HESE) selection.
The IceCube detector was in a normal operating state. HESE events have a
neutrino vertex inside of the detector (to reduce background) and have a
high light level (a proxy for energy).
After the initial automated alert
(https://gcn.gsfc.nasa.gov/notices_amon/56068624_130126.amon), more
sophisticated reconstruction algorithms have been applied offline, with
the direction refined to:
Date: 2017-10-15
Time: 01:34:30.06 UT
RA: 162.86 deg (-1.70 deg / +2.60 deg 90% PSF containment) J2000
Dec: -15.44 deg (-2.00 deg / +1.60 deg 90% PSF containment) J2000
We encourage follow-up by ground and space-based instruments to help
identify a possible astrophysical source for the candidate neutrino.
The IceCube Neutrino Observatory is a cubic-kilometer neutrino detector
operating at the geographic South Pole, Antarctica. The IceCube realtime
alert point of contact can be reached at roc@icecube.wisc.edu