High Energy Neutrinos from Recent Blazar Flares

Abstract

The energy density of cosmic neutrinos measured by IceCube matches the one observed by Fermi in extragalactic photons that predominantly originate in blazars. This has inspired attempts to match Fermi sources with IceCube neutrinos. A spatial association combined with a coincidence in time with a flaring source may represent a smoking gun for the origin of the IceCube flux. In June 2015, the Fermi Large Area Telescope observed an intense flare from blazar 3C 279 that exceeded the steady flux of the source by a factor of forty for the duration of a day. We show that IceCube is likely to observe neutrinos, if indeed hadronic in origin, in data that are still blinded at this time. We also discuss other opportunities for coincident observations that include a recent flare from blazar 1ES 1959+650 that previously produced an intriguing coincidence with AMANDA observations.

arXiv comment12 pages, 8 figures

References in corpus (12)

• Evidence for High-Energy Extraterrestrial Neutrinos at the IceCube Detector
• Observation of High-Energy Astrophysical Neutrinos in Three Years of IceCube Data
• Testing the Hadronuclear Origin of PeV Neutrinos Observed with IceCube
• Evidence for Astrophysical Muon Neutrinos from the Northern Sky with IceCube
• Coincidence of a high-fluence blazar outburst with a PeV-energy neutrino event
• Rapid Variability of Blazar 3C 279 during Flaring States in 2013-2014 with Joint Fermi-LAT, NuSTAR, Swift, and Ground-Based Multi-wavelength Observations
• Searches for Extended and Point-like Neutrino Sources with Four Years of IceCube Data
• Resolving the Extragalactic $\gamma$-ray Background above 50 GeV with Fermi-LAT
• Extreme blazars as counterparts of IceCube astrophysical neutrinos
• Searches for Time Dependent Neutrino Sources with IceCube Data from 2008 to 2012
• High Energy Neutrinos from the TeV Blazar 1ES 1959+650
• A hard gamma-ray flare from 3C 279 in 2013 December

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• Selected results from IceCube
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