A lepto-hadronic model for high-energy emission from FR I radiogalaxies

Abstract

The well know radiogalaxy Cen A has been recently detected as a source of very high energy (VHE) gamma-rays by the HESS experiment just before Fermi/LAT detected it at high energies (HE). The detection, together with that of M87, establishes radiogalaxies as VHE gamma-ray emitters. The aim of this work is to present a lepto-hadronic model for the VHE emission from the relativistic jets in FR I radiogalaxies. We consider that protons and electrons are accelerated in a compact region near the base of the jet, and they cool emitting multi wavelength radiation as they propagate along the jet. The proton and electron distributions are obtained through an inhomogeneous steady-state transport equation taking into account acceleration, radiative and non-radiative cooling processes, as well as particle transport by convection. Considering the effects of photon absorption at different wavelengths, we calculate the radiation emitted by the primary protons and electrons, as well as the contribution of secondaries particles (e+/-, pions and muons). The expected high-energy neutrino signal is also obtained and the possibility of detections with KM3Net and IceCube is discussed. The spectral energy distribution obtained in our model with an appropriate set of parameters for an extended emission zone can account for much of the observed spectrum for both AGNs.

16 pages, 11 figures, accepted for publication in A&A. New and revised calculations were added

References in corpus (36)

• Bright AGN Source List from the First Three Months of the Fermi Large Area Telescope All-Sky Survey
• Sub-milliarcsecond Imaging of Quasars and Active Galactic Nuclei III. Kinematics of Parsec-Scale Radio Jets
• Magnetic acceleration of relativistic AGN jets
• Fast variability of TeV gamma-rays from the radio galaxy M 87
• The Black Hole Mass, Stellar M/L, and Dark Halo in M87
• Energy spectra of gamma-rays, electrons and neutrinos produced at interactions of relativistic protons with low energy radiation
• Radio Imaging of the Very-High-Energy Gamma-Ray Emission Region in the Central Engine of a Radio Galaxy
• Flavor Composition and Energy Spectrum of Astrophysical Neutrinos
• The Inner Jet of the Radio Galaxy M87
• Fermi Large Area Telescope Gamma-Ray Detection of the Radio Galaxy M87
• Production of TeV gamma-radiation in the vicinity of the supermassive black hole in the giant radiogalaxy M87
• Spine-sheath layer radiative interplay in subparsec-scale jets and the TeV emission from M87
• Superluminal Radio Features in the M87 Jet and the Site of Flaring TeV Gamma-ray Emission
• Fermi Large Area Telescope View of the Core of the Radio Galaxy Centaurus A
• Fermi observations of TeV-selected AGN
• High-energy particle acceleration at the radio-lobe shock of Centaurus A
• The central parsecs of Centaurus A: High Excitation Gas, a Molecular Disk, and the Mass of the Black Hole
• On the formation of TeV radiation in LS 5039
• High-energy Particle Acceleration and Production of Ultra-high-energy Cosmic Rays in the Giant Lobes of Centaurus A
• Chandra and XMM-Newton Observations of the Nucleus of Centaurus A
• The proton low-mass microquasar: high-energy emission
• Observation of gamma-ray emission from the galaxy M87 above 250 GeV with VERITAS
• Magnetic field effects on neutrino production in microquasars
• A synchrotron self-Compton scenario for the very high energy gamma-ray emission of the radiogalaxy M87
• Variable VHE gamma-ray emission from non-blazar AGNs
• The size--density relation of extragalactic HII regions
• Comment on "Correlation of the Highest-Energy Cosmic Rays with Nearby Extragalactic Objects"
• Leptonic/hadronic models for electromagnetic emission in microquasars: the case of GX 339-4
• Cen A as TeV gamma-ray and possible UHE cosmic-ray source
• Light Nuclei solving Auger puzzles. The Cen-A imprint
• Thermal and Non-Thermal Infrared Emission from M87
• A circumnuclear disk of atomic hydrogen in Centaurus A
• IceCube Sensitivity for Neutrino Flux from Fermi Blazars in Quiescent States
• Launching of jets by cold, magnetized disks in Kerr Metric
• Neutrino signal from gamma-ray loud binaries powered by high energy protons
• On hadronic beam models for quasars and microquasars

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• Leptonic and Hadronic Radiative Processes in Supermassive-Black-Hole Jets
• The role of fast magnetic reconnection on the radio and gamma-ray emission from the nuclear regions of microquasars and low luminosity AGNs
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• Time-dependent lepto-hadronic modeling of the emission from blazar jets with SOPRANO: the case of TXS 0506+056, 3HSP J095507.9+355101 and 3C 279
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• The $\gamma$-ray spectrum of the core of Centaurus A as observed with H.E.S.S. and Fermi-LAT
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• One-zone SSC model for the core emission of Centaurus A revisited
• Broadband Multi-wavelength Properties of M87 during the 2018 EHT Campaign including a Very High Energy Flaring Episode
• Modeling the Spectral Energy Distribution of the radio galaxy IC310
• Gamma-ray fluxes from the core emission of Centaurus A: A puzzle solved
• Runaway massive stars as variable gamma-ray sources
• The complex gamma-ray behaviour of the Radio Galaxy M87
• Probing the central black hole in M87 with gamma-rays
• Blazars at Very High Energies: Emission Modelling
• Prospects for a Dark Matter annihilation signal towards the Sagittarius dwarf galaxy with ground based Cherenkov telescopes
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• On the possibilities of high-energy neutrino production in the jets of microquasar SS433 in light of new observational data
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• A two-component model for the high-energy variability of blazars. Application to PKS 2155-304
• Study of the PeV Neutrino, $\gamma$-rays and UHECRs around The Lobes of Centaurus A
• Gamma-Rays from Radio Galaxies: Fermi-Lat Observations
• A two-zone approach to neutrino production in gamma-ray bursts
• Hadronic Interactions of Energetic Charged Particles in Protogalactic Outflow Environments and Implications for the Early Evolution of Galaxies
• Dynamical and radiative simulations of $\gamma$-ray jets in microquasars
• Neutrino production in Population III microquasars
• High-energy signatures of binary systems of supermassive black holes
• Earth Occultation Imaging of the Low Energy Gamma-Ray Sky with GBM
• High-energy Gamma-rays from Magnetically Arrested Disks in Nearby Radio Galaxies
• A plausible link between dynamically unsettled molecular gas and the radio jet in NGC 6328
• Population III microquasars
• Determining the composition of radio plasma via circular polarization: the prospects of the Cygnus A hot spots
• Probing IC/CMB Interpretation for the X-ray knots of AGN through VHE observations
• Neutrino production from photo-hadronic interactions of the gamma flux from Active Galactic Nuclei with their gas content
• On the extragalactic jet asymmetry and composition, and the production of high energy cosmic rays