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research article

Neutrino Signal from a Population of Seyfert Galaxies

Neronov, Andrii  
•
Savchenko, D.
•
Semikoz, D. V.
March 4, 2024
Physical Review Letters

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 (similar to 3 sigma) 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 x 10(-7). This corresponds to a correlation between Seyfert galaxies and neutrino emission.

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Type
research article
DOI
10.1103/PhysRevLett.132.101002
Web of Science ID

WOS:001196477400010

Author(s)
Neronov, Andrii  
•
Savchenko, D.
•
Semikoz, D. V.
Date Issued

2024-03-04

Publisher

Amer Physical Soc

Published in
Physical Review Letters
Volume

132

Issue

10

Article Number

101002

Subjects

Physical Sciences

•

Active Galactic Nuclei

•

Compton-Thick Agns

•

X-Ray

•

Nustar View

•

Gamma-Ray

•

Emission

•

Constraints

•

Coronae

•

Radio

Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LASTRO  
Available on Infoscience
May 1, 2024
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/207638
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