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Updated: Jun 30, 2025

Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
Neutrino Signal from a Population of Seyfert Galaxies
A Neronov1,2, D Savchenko1,3,4, D V Semikoz1
1Université Paris Cité, CNRS, Astroparticule et Cosmologie, F-75013 Paris, France.
Abstract:
IceCube Collaboration has previously reported evidence for a neutrino signal from a Seyfert galaxy NGC 1068. This may suggest that all Seyfert galaxies emit neutrinos. To test this hypothesis, we identify the best candidate neutrino sources among nearby Seyfert galaxies, based on their hard x-ray properties. Only two other sources, NGC 4151 and NGC 3079 are expected to be detectable in 10 years of IceCube data. We find evidence (∼3σ) for a neutrino signal from both sources in a publicly available ten-year IceCube dataset. Though neither source alone is above the threshold for discovery, the chance coincidence probability to find the observed neutrino count excesses in the directions of the two out of two expected sources, in addition to the previously reported brightest source, is p<2.6×10^{-7}. This corresponds to a correlation between Seyfert galaxies and neutrino emission.
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