The cosmologically integrated neutrino emission from supermassive black hole coronae in Seyfert galaxies can account for the sub-PeV diffuse extragalactic neutrino flux observed by IceCube.
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A hadronic model with two free parameters shows proton-photon interactions can supply enough pairs for observed coronal optical depths above a critical Eddington ratio, with neutrino luminosity scaling as L_X^2/L_Edd below and L_X above that threshold.
The diffuse astrophysical neutrino flux is interpreted as dominated by a single source class with dominant pγ production for target photon temperatures of 0.1-1 keV.
A Comptonization model of AGN coronae combined with Monte-Carlo photopion production and cosmological evolution can account for IceCube's ~100 TeV and sub-PeV neutrinos using only photohadronic processes.
citing papers explorer
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Particle Acceleration, Coronal Neutrino Production, and the Diffuse Extragalactic Neutrino Background from Supermassive Black Holes
The cosmologically integrated neutrino emission from supermassive black hole coronae in Seyfert galaxies can account for the sub-PeV diffuse extragalactic neutrino flux observed by IceCube.
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Neutrino and pair creation in reconnection-powered coronae of accreting black holes
A hadronic model with two free parameters shows proton-photon interactions can supply enough pairs for observed coronal optical depths above a critical Eddington ratio, with neutrino luminosity scaling as L_X^2/L_Edd below and L_X above that threshold.
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Single-source-class interpretation of the diffuse astrophysical neutrino flux
The diffuse astrophysical neutrino flux is interpreted as dominated by a single source class with dominant pγ production for target photon temperatures of 0.1-1 keV.
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TeV to PeV neutrinos from AGN coronae
A Comptonization model of AGN coronae combined with Monte-Carlo photopion production and cosmological evolution can account for IceCube's ~100 TeV and sub-PeV neutrinos using only photohadronic processes.