Neutrino signal from a population of Seyfert galaxies

Abstract

IceCube collaboration has previously reported an evidence for 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 an evidence (~3 sigma)} for neutrino signal from both sources in 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<2.6e-7. This corresponds to a correlation between Seyfert galaxies and neutrino emission.

4 pages

References in corpus (11)

• Evidence for neutrino emission from the nearby active galaxy NGC 1068
• Time-integrated Neutrino Source Searches with 10 years of IceCube Data
• Measurement of the atmospheric neutrino energy spectrum from 100 GeV to 400 TeV with IceCube
• INTEGRAL observations of the cosmic X-ray background in the 5-100 keV range via occultation by the Earth
• Black hole lightning due to particle acceleration at subhorizon scales
• The NuSTAR View of Nearby Compton-thick AGN: The Cases of NGC 424, NGC 1320 and IC 2560
• Hidden Hearts of Neutrino Active Galaxies
• High-Spatial Resolution SED of NGC 1068 from Near-IR to Radio. Disentangling the thermal and non-thermal contributions
• Fundamental Reference AGN Monitoring Experiment (FRAMEx) I: Jumping Out of the Plane with the VLBA
• NuSTAR view of Swift/BAT AGN: The $R$-$\Gamma$ correlation
• A multi-epoch X-ray study of the nearby Seyfert 2 galaxy NGC 7479: Linking column density variability to the torus geometry

Cited by in corpus (15)

• Neutrinos from stochastic acceleration in black hole environments
• Two 100 TeV neutrinos coincident with the Seyfert galaxy NGC 7469
• The origin of high-energy astrophysical neutrinos: new results and prospects
• Constraining the contribution of Seyfert galaxies to the diffuse neutrino flux in light of point source observations
• High-energy Emission from Turbulent Electron-ion Coronae of Accreting Black Holes
• On the possible contributions of two nearby blazars to the NGC 4151 neutrino hotspot
• A hierarchical Bayesian approach to point source analysis in high-energy neutrino telescopes
• Extreme Jet Beaming Observed in Neutrino-Associated Blazars
• Very-high-energy observations of the Seyfert galaxy NGC 4151 with MAGIC -- Indication of another gamma-ray obscured candidate neutrino source
• First Search for High-Energy Neutrino Emission from Galaxy Mergers
• X-ray Spectral Variability as Probe of Multimessenger Emission in Blazar 5BZB J0630-24064
• Investigating the correlations between IceCube high-energy neutrinos and Fermi-LAT $\gamma$-ray observations. II
• Astrophysical constraints on the simulation hypothesis for this Universe: why it is (nearly) impossible that we live in a simulation
• Zooming into the neutrino-associated blazar candidate J1718+4239
• Revisiting Disk Winds in Active Galactic Nuclei as an Origin of Cosmic Gamma-ray and Neutrino Backgrounds