Neutrino, $\gamma$-ray and cosmic ray fluxes from the core of the closest radio galaxies

Abstract

The closest radio galaxies; Centaurus A, M87 and NGC 1275, have been detected from radio wavelengths to TeV $\gamma$-rays, and also studied as high-energy neutrino and ultra-high-energy cosmic ray potential emitters. Their spectral energy distributions show a double-peak feature, which is explained by synchrotron self-Compton model. However, TeV $\gamma$-ray measured spectra could suggest that very-high-energy $\gamma$-rays might have a hadronic origin. We introduce a lepto-hadronic model to describe the broadband spectral energy distribution; from radio to sub GeV photons as synchrotron self-Compton emission and TeV $\gamma$-ray photons as neutral pion decay resulting from p$\gamma$ interactions occurring close to the core. These photo-hadronic interactions take place when Fermi-accelerated protons interact with the seed photons around synchrotron self-Compton peaks. Obtaining a good description of the TeV $\gamma$-ray fluxes, firstly, we compute neutrino fluxes and events expected in IceCube detector and secondly, we estimate ultra-high-energy cosmic ray fluxes and event rate expected in Telescope Array, Pierre Auger and HiRes observatories. Within this scenario we show that the expected high-energy neutrinos cannot explain the astrophysical flux observed by IceCube, and the connection with ultra-high-energy cosmic rays observed by Auger experiment around Centaurus A, might be possible only considering a heavy nuclei composition in the observed events.

16 pages and 7 figures. Accepted for publication in ApJ

References in corpus (29)

• Sub-milliarcsecond Imaging of Quasars and Active Galactic Nuclei III. Kinematics of Parsec-Scale Radio Jets
• MOJAVE: Monitoring of Jets in AGN with VLBA Experiments. V. Multi-epoch VLBA Images
• Fast variability of TeV gamma-rays from the radio galaxy M 87
• High-energy neutrinos in the context of multimessenger physics
• The Cosmic Ray Energy Spectrum Observed with the Surface Detector of the Telescope Array Experiment
• The Inner Jet of the Radio Galaxy M87
• Observational Constraints on the Ultra-high Energy Cosmic Neutrino Flux from the Second Flight of the ANITA Experiment
• Photohadronic origin of $\gamma$-ray BL Lac emission: implications for IceCube neutrinos
• Uncertainties in Atmospheric Neutrino Fluxes
• High-energy Particle Acceleration and Production of Ultra-high-energy Cosmic Rays in the Giant Lobes of Centaurus A
• Survey of Instantaneous 1-22 GHz Spectra of 550 Compact Extragalactic Objects with Declinations from -30deg to +43deg
• Ultra High Energy Cosmic Rays from Black Hole Jets of Radio Galaxies
• Anisotropy vs chemical composition at ultra-high energies
• Magnetic Fields in the Center of the Perseus Cluster
• The Discovery of Cepheids and a Distance to NGC 5128
• Measurement of the Flux of Ultra High Energy Cosmic Rays by the Stereo Technique
• Galaxy Clusters in the Swift/BAT era: Hard X-rays in the ICM
• New results on particle acceleration in the Centaurus A jet and counterjet from a deep Chandra observation
• A synchrotron self-Compton scenario for the very high energy gamma-ray emission of the radiogalaxy M87
• Observations of Selected AGN with H.E.S.S
• The Suzaku Observation of the Nucleus of the Radio-Loud Active Galaxy Centaurus A: Constraints on Abundances of the Accreting Material
• TeV Gamma-Ray Observations of the Perseus and Abell 2029 Galaxy Clusters
• Ultra-high energy Neutrinos from Centaurus A and the Auger hot spot
• Implications of a PeV neutrino spectral cutoff in GRB models
• Thermal and Non-Thermal Infrared Emission from M87
• Gamma-ray fluxes from the core emission of Centaurus A: A puzzle solved
• Cosmic Neutrinos from the Sources of Galactic and Extragalactic Cosmic Rays
• TeV $\gamma$-ray fluxes from the long campaigns on Mrk421 as constraints on the emission of TeV-PeV Neutrinos and UHECRs
• Could a plasma in quasi-thermal equilibrium be associated to the "orphan" TeV flares ?

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• Nuclear and electromagnetic cascades induced by ultrahigh-energy cosmic rays in radio galaxies: implications for Centaurus A
• Detection of very high-energy gamma-ray emission from the radio galaxy M87 with LHAASO
• Broadband Modeling of Low Luminosity Active Galactic Nuclei Detected in Gamma Rays
• Ultrahigh-energy neutrinos as a probe of espresso-shear acceleration in jets of Centaurus A
• Cosmic rays, neutrinos and GeV-TeV gamma rays from Starburst Galaxy NGC 4945
• Electron-positron pair plasma in TXS 0506+056 and the "neutrino flare" in 2014-2015
• High-energy Gamma-rays from Magnetically Arrested Disks in Nearby Radio Galaxies
• A two-fluid model for black-hole accretion flows: Particle acceleration, outflows, and TeV emission
• Explaining the Origin of TeV Gamma Rays from M87 During High and Low States