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- W4313598851 endingPage "37" @default.
- W4313598851 startingPage "37" @default.
- W4313598851 abstract "We present a bottom-up calculation of the flux of ultra-high energy cosmic rays (UHECRs) and high-energy neutrinos produced by powerful jets of active galactic nuclei (AGNs). By propagating test particles in 3D relativistic magnetohydrodynamic jet simulations, including a Monte Carlo treatment of sub-grid pitch-angle scattering and attenuation losses due to realistic photon fields, we study the spectrum and composition of the accelerated UHECRs and estimate the amount of neutrinos produced in such sources. We find that UHECRs may not be significantly affected by photodisintegration in AGN jets where the espresso mechanism efficiently accelerates particles, consistent with Auger's results that favor a heavy composition at the highest energies. Moreover, we present estimates and upper bounds for the flux of high-energy neutrinos expected from AGN jets. In particular, we find that: i) source neutrinos may account for a sizable fraction, or even dominate, the expected flux of cosmogenic neutrinos; ii) neutrinos from the beta-decay of secondary neutrons produced in nucleus photodisintegration end up in the TeV-PeV band observed by IceCube, but can hardly account for the observed flux; iii) UHECRs accelerated via the espresso mechanism lead to nearly isotropic neutrino emission, which suggests that nearby radio galaxies may be more promising as potential sources. We discuss our results in the light of multimessenger astronomy and current/future neutrino experiments." @default.
- W4313598851 created "2023-01-06" @default.
- W4313598851 creator A5007068870 @default.
- W4313598851 creator A5053877139 @default.
- W4313598851 creator A5091201925 @default.
- W4313598851 date "2023-01-01" @default.
- W4313598851 modified "2023-09-25" @default.
- W4313598851 title "High-energy Neutrino Emission from Espresso-reaccelerated Ions in Jets of Active Galactic Nuclei" @default.
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- W4313598851 doi "https://doi.org/10.3847/1538-4357/aca481" @default.
- W4313598851 hasPublicationYear "2023" @default.