Multiwavelength follow-up of a rare IceCube neutrino multiplet
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Issue Date
2017-11Author
IceCube Collaboration
The Astrophysical Multimessenger Observatory Network
HAWC
Fermi
LCO
MASTER
VERITAS
Publisher
EDP Sciences
Type
Article
Article Version
Scholarly/refereed, publisher version
Metadata
Show full item recordAbstract
On February 17, 2016, the IceCube real-time neutrino search identified, for the first time, three muon neutrino candidates arriving within 100 s of
one another, consistent with coming from the same point in the sky. Such a triplet is expected once every 13.7 years as a random coincidence of
background events. However, considering the lifetime of the follow-up program the probability of detecting at least one triplet from atmospheric
background is 32%. Follow-up observatories were notified in order to search for an electromagnetic counterpart. Observations were obtained by
Swift
’s X-ray telescope, by ASAS-SN, LCO and MASTER at optical wavelengths, and by VERITAS in the very-high-energy gamma-ray regime.
Moreover, the
Swift
BAT serendipitously observed the location 100 s after the first neutrino was detected, and data from the
Fermi
LAT and HAWC
observatory were analyzed. We present details of the neutrino triplet and the follow-up observations. No likely electromagnetic counterpart was
detected, and we discuss the implications of these constraints on candidate neutrino sources such as gamma-ray bursts, core-collapse supernovae
and active galactic nucleus flares. This study illustrates the potential of and challenges for future follow-up campaigns
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Citation
IceCube Collaboration. "Multiwavelength follow-up of a rare IceCube neutrino multiplet”, Astronomy & Astrophysics. (2017) 607. https://doi.org/10.1051/0004-6361/201730620
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