Constraining the contribution of Seyfert galaxies to the diffuse neutrino flux in light of point source observations

Abstract

Recently, the IceCube Collaboration reported evidence for TeV neutrino emission from several nearby Seyfert galaxies, with the highest significance found for NGC 1068. Assuming stochastic proton acceleration in magnetized turbulence inside the corona, we model the neutrino emission of Seyfert galaxies as a function of their X-ray luminosity. Applying our model to NGC 1068, we obtain a good fit to the public IceCube data and constrain the coronal radius to $\lesssim 5R_S$ by comparing our MeV $\gamma$-ray predictions to Fermi-LAT observations. Extending to the full Seyfert population, we estimate their diffuse neutrino contribution and find that they can explain a significant fraction of the observed flux below $10\mathrm{TeV}$. However, scenarios with highly turbulent coronae and high cosmic-ray pressure across the population are ruled out. In particular, if all sources shared the best-fit parameters obtained for NGC 1068, their cumulative neutrino emission would exceed current upper limits at TeV energies by $3.8\sigma$. Our results, informed by both neutrino and $\gamma$-ray data, show that those Seyfert galaxies that emerge as neutrino point sources must be exceptionally efficient neutrino emitters and are not representative of the broader population.

arXiv comment22 pages, 14 figures, accepted by PRD

References in corpus (70)

• Evidence for High-Energy Extraterrestrial Neutrinos at the IceCube Detector
• Fermi Large Area Telescope Fourth Source Catalog
• An Observational Determination of the Bolometric Quasar Luminosity Function
• Letter of Intent for KM3NeT 2.0
• First observation of PeV-energy neutrinos with IceCube
• Broad-band gamma-ray and X-ray spectra of NGC 4151 and their implications for physical processes and geometry
• Toward the Standard Population Synthesis Model of the X-Ray Background: Evolution of X-Ray Luminosity and Absorption Functions of Active Galactic Nuclei Including Compton-Thick Populations
• BAT AGN Spectroscopic Survey - V. X-ray properties of the Swift/BAT 70-month AGN catalog
• IceCube-Gen2: The Window to the Extreme Universe
• Evidence for neutrino emission from the nearby active galaxy NGC 1068
• The Formation and Structure of a Strongly Magnetized Corona above Weakly Magnetized Accretion Disks
• Time-integrated Neutrino Source Searches with 10 years of IceCube Data
• Hidden Cosmic-Ray Accelerators as an Origin of TeV-PeV Cosmic Neutrinos
• Obscuration-dependent evolution of Active Galactic Nuclei
• Characteristics of the diffuse astrophysical electron and tau neutrino flux with six years of IceCube high energy cascade data
• The contribution of Fermi-2LAC blazars to the diffuse TeV-PeV neutrino flux
• Improved Characterization of the Astrophysical Muon-Neutrino Flux with 9.5 Years of IceCube Data
• Methods for point source analysis in high energy neutrino telescopes
• The Pacific Ocean Neutrino Experiment
• Hidden Cores of Active Galactic Nuclei as the Origin of Medium-Energy Neutrinos: Critical Tests with the MeV Gamma-Ray Connection
• On the Momentum Diffusion of Radiating Ultrarelativistic Electrons in a Turbulent Magnetic Field
• Global Radiation Magneto-hydrodynamic Simulations of Sub-Eddington Accretion Disks around Supermassive Black Holes
• The Accretion History of AGN I: Supermassive Black Hole Population Synthesis Model
• BAT AGN Spectroscopic Survey -- XII. The relation between coronal properties of Active Galactic Nuclei and the Eddington ratio
• Accretion disc coronae as magnetic reservoirs
• Radiative Processes in High Energy Astrophysics
• On the Origin of High Energy Neutrinos from NGC 1068: The Role of Non-Thermal Coronal Activity
• X-ray variability and correlations in the two phase disk-corona model for Seyfert galaxies
• The Swift/BAT AGN Spectroscopic Survey (BASS) -- VI. The Gamma_X - L/L_Edd relation
• Constraining the fraction of Compton-thick AGN in the Universe by modelling the diffuse X-ray background spectrum
• A simple model for magnetic reconnection heated corona
• Time-Dependent Stochastic Particle Acceleration in Astrophysical Plasmas: Exact Solutions Including Momentum-Dependent Escape
• The All-sky Medium Energy Gamma-ray Observatory eXplorer (AMEGO-X) Mission Concept
• Hidden Hearts of Neutrino Active Galaxies
• The high-Eddington NLS1 Ark 564 has the coolest corona
• On high-energy particles in accretion disk coronae of supermassive black holes: implications for MeV gamma rays and high-energy neutrinos from AGN cores
• Constraints on gamma-ray and neutrino emission from NGC 1068 with the MAGIC telescopes
• Radiation Magneto-hydrodynamic Simulations of the Formation of Hot Accretion Disk Coronae
• Observations of Selected AGN with H.E.S.S
• Characterization of the Astrophysical Diffuse Neutrino Flux using Starting Track Events in IceCube
• Contribution of starburst nuclei to the diffuse gamma-ray and neutrino flux
• X-ray Coronal Properties of Swift/BAT-Selected Seyfert 1 Active Galactic Nuclei
• Starburst galaxies strike back: a multi-messenger analysis with Fermi-LAT and IceCube data
• The Cepheid Distance to the Seyfert 1 Galaxy NGC 4151
• Galactic outflow driven by the active nucleus and the origin of the gamma-ray emission in NGC 1068
• TeV neutrinos and hard X-rays from relativistic reconnection in the corona of NGC 1068
• A search for neutrino emission from cores of Active Galactic Nuclei
• Multi-messenger tests of cosmic-ray acceleration in radiatively inefficient accretion flows
• Neutrino signal from a population of Seyfert galaxies
• Disentangling the Hadronic Components in NGC 1068
• An analytical approximation of the luminosity distance in flat cosmologies with a cosmological constant
• Sub-GeV Gamma Rays from Nearby Seyfert Galaxies and Implications for Coronal Neutrino Emission
• Powerlaw spectra from stochastic acceleration
• Revealing the Production Mechanism of High-Energy Neutrinos from NGC 1068
• Nonlinear aspects of stochastic particle acceleration
• AM${}^3$: An Open-Source Tool for Time-Dependent Lepto-Hadronic Modeling of Astrophysical Sources
• High-energy Neutrinos from the Inner Circumnuclear Region of NGC 1068
• A survey of active galaxies at TeV photon energies with the HAWC gamma-ray observatory
• The neutrino background from non-jetted active galactic nuclei
• Neutrino and pair creation in reconnection-powered coronae of accreting black holes
• Neutrinos from stochastic acceleration in black hole environments
• Gamma-ray and Neutrino Signals from Accretion Disk Coronae of Active Galactic Nuclei
• Two 100 TeV neutrinos coincident with the Seyfert galaxy NGC 7469
• Driving Disk Winds and Heating up Hot Coronae by MRI Turbulence
• On the possible jet contribution to the $\gamma$-ray luminosity in NGC 1068
• Large neutrino telescope Baikal-GVD: recent status
• Ultra-high-energy cosmic rays from ultra-fast outflows of active galactic nuclei
• Popsynth: A generic astrophysical population synthesis framework
• Deciphering the Sources of Cosmic Neutrinos
• A hierarchical Bayesian approach to point source analysis in high-energy neutrino telescopes

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