Neutrinos in IceCube from AGN's

Abstract

Recently IceCube collaboration has reported first evidence for the astrophysical neutrinos. Observation corresponds to the total astrophysical neutrino flux of the order of $3\cdot 10^{-8}$ $GeV/c{m}^2/s/sr$ in a PeV energy range. Active Galactic Nuclei (AGN) are natural candidate sources for such neutrinos. To model the neutrino creation in AGNs we study photopion production processes on the radiation field of the Shakura-Sunyaev accretion disks in the black hole vicinity. We show that this model can explain detected neutrino flux and avoids, at the same time, existing constraints from the gamma-ray and cosmic ray observations.

6 pages, 5 figures, version accepted for publication in JETP (minor text corrections, few references added)

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• On the Origin of High Energy Neutrinos from NGC 1068: The Role of Non-Thermal Coronal Activity
• Opening a New Window onto the Universe with IceCube
• High-Energy Neutrinos from Magnetized Coronae of Active Galactic Nuclei and Prospects for Identification of Seyfert Galaxies and Quasars in Neutrino Telescopes
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• Evidence for the Galactic contribution to the IceCube astrophysical neutrino flux
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• A Possible Two-component Flux for the High Energy Neutrino Events at IceCube
• Decaying Leptophilic Dark Matter at IceCube
• Analysis of the 4-year IceCube high-energy starting events
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• Interpreting IceCube 6-year HESE data as an evidence for hundred TeV decaying Dark Matter
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• A minimal model for extragalactic cosmic rays and neutrinos
• Multi-component Fermionic Dark Matter and IceCube PeV scale Neutrinos in Left-Right Model with Gauge Unification
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• Multi-messenger tests of cosmic-ray acceleration in radiatively inefficient accretion flows
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• Probing decaying heavy dark matter with the 4-year IceCube HESE data
• Dark Matter interpretation of low energy IceCube MESE excess
• Boosted Dark Matter and its implications for the features in IceCube HESE data
• Strong constraint on hadronic models of blazar activity from Fermi and IceCube stacking analysis
• Estimating the contribution of Galactic sources to the diffuse neutrino flux
• NGC 1068 constraints on neutrino-dark matter scattering
• High-energy emitting BL Lacs and high-energy neutrinos - Prospects for the direct association with IceCube and KM3NeT
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• Neutrino telescopes and high-energy cosmic neutrinos
• Gamma-ray and Neutrino Signals from Accretion Disk Coronae of Active Galactic Nuclei
• PeV scale Supersymmetry breaking and the IceCube neutrino flux
• Quantum witness and invasiveness of cosmic neutrino measurements
• Neutrino production in blazar radio cores
• Probing neutrino production in blazars by millimeter VLBI
• Mass and Life Time of Heavy Dark Matter Decaying into IceCube PeV Neutrinos
• Beyond first light: Global monitoring for high-energy neutrino astronomy
• Energy-dependent flavor ratios, cascade/track spectrum tension and high-energy neutrinos from magnetospheres of supermassive black holes
• On the possible contributions of two nearby blazars to the NGC 4151 neutrino hotspot
• IceCube PeV Neutrinos and Leptophilic Dark Matter
• Efficiency of Centrifugal Mechanism in Producing PeV Neutrinos From Active Galactic Nuclei
• General constraints on sources of high-energy cosmic rays from the interaction losses
• Neutrino and Cosmic-Ray Emission and Cumulative Background from Radiatively Inefficient Accretion Flows in Low-Luminosity Active Galactic Nuclei
• Estimation of Baryon Asymmetry from Dark Matter Decaying into IceCube Neutrinos
• Revisiting Disk Winds in Active Galactic Nuclei as an Origin of Cosmic Gamma-ray and Neutrino Backgrounds