# High Energy Neutrinos from Recent Blazar Flares

@article{Halzen2016HighEN,
title={High Energy Neutrinos from Recent Blazar Flares},
author={Francis Halzen and Ali Kheirandish},
journal={arXiv: High Energy Astrophysical Phenomena},
year={2016}
}
• Published 19 May 2016
• Physics
• arXiv: High Energy Astrophysical Phenomena
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…

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## References

SHOWING 1-10 OF 25 REFERENCES
Evidence for High-Energy Extraterrestrial Neutrinos at the IceCube Detector
• Physics
Science
• 2013
The presence of a high-energy neutrino flux containing the most energetic neutrinos ever observed is revealed, including 28 events at energies between 30 and 1200 TeV, although the origin of this flux is unknown and the findings are consistent with expectations for a neutRino population with origins outside the solar system.
Evidence for Astrophysical Muon Neutrinos from the Northern Sky with IceCube.
• Physics
Physical review letters
• 2015
The analysis presented here, a data sample of approximately 35,000 muon neutrinos from the Northern sky is extracted from data taken during 659.5 days of live time recorded between May 2010 and May 2012, and a fit for an astrophysical flux with an arbitrary spectral index is performed.
Observation of high-energy astrophysical neutrinos in three years of IceCube data.
• Physics
Physical review letters
• 2014
Results from an analysis with a third year of data from the complete IceCube detector are consistent with the previously reported astrophysical flux in the 100 TeV-PeV range at the level of 10(-8)  GeV cm-2 s-1 sr-1 per flavor and reject a purely atmospheric explanation for the combined three-year data at 5.7σ.
Pinpointing Extragalactic Neutrino Sources in Light of Recent IceCube Observations
• Physics
• 2014
The IceCube Collaboration has recently reported the observation of a flux of high-energy astrophysical neutrinos. The angular distribution of events is consistent with an isotropic arrival direction
Search for a diffuse flux of astrophysical muon neutrinos with the IceCube 59-string configuration
• Physics
• 2014
A search for high-energy neutrinos was performed using data collected by the IceCube Neutrino Observatory from May 2009 to May 2010, when the array was running in its 59-string configuration. The
Testing the hadronuclear origin of PeV neutrinos observed with IceCube
• Physics
• 2013
We consider implications of the IceCube signal for hadronuclear (pp) scenarios of neutrino sources such as galaxy clusters/groups and star-forming galaxies. Since the observed neutrino flux is
Extreme blazars as counterparts of IceCube astrophysical neutrinos
• Physics
• 2016
We explore the correlation of $\gamma$-ray emitting blazars with IceCube neutrinos by using three very recently completed, and independently built, catalogues and the latest neutrino lists. We
SEARCHES FOR TIME-DEPENDENT NEUTRINO SOURCES WITH ICECUBE DATA FROM 2008 TO 2012
• Physics
• 2015
In this paper searches for flaring astrophysical neutrino sources and sources with periodic emission with the IceCube neutrino telescope are presented. In contrast to time-integrated searches, where
Resolving the Extragalactic γ-Ray Background above 50 GeV with the Fermi Large Area Telescope.
• Physics
Physical review letters
• 2016
This work measures, for the first time, the source count distribution, dN/dS, of extragalactic γ-ray sources at E>50  GeV and finds that it is compatible with a Euclidean distribution down to the lowest measured source flux in the 2FHL.