Fossil shell in 3C 84 as TeV $\gamma$-ray emitter and cosmic-ray accelerator

Abstract

We explore physical properties of the shocked external medium (i.e., a shell) in 3C 84 associated with the recurrent radio lobe born around 1960. In the previous work of Ito et al., we investigated a dynamical and radiative evolution of such a shell after the central engine stops the jet launching and we found that a fossil shell emission overwhelms that of the rapidly fading radio lobe. We apply this model to 3C 84 and find the followings: (i) The fossil shell made of shocked diffuse ambient matter with the number density of 0.3 cm${}^{-3}$ radiates bright Inverse-Compton (IC) emission with the seed photons of the radio emission from the central compact region and the IC emission is above the sensitivity threshold of the Cherenkov Telescope Array (CTA). (ii) When the fossil shell is produced in a geometrically thick ionized plasma with the number density of $10^3$ cm${}^{-3}$ and the field strength in the shell may reach about 17 mG in the presence of magnetic fields amplification and the radio emission becomes comparable to the sensitivity of deep imaging VLBI observations. A possible production of ultra high energy cosmic-rays (UHECRs) in the dense shocked plasma is also argued.

arXiv comment16 pages, 7 figures, 2 tables, ApJ, in press

References in corpus (55)

• Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Observational Evidence of AGN Feedback
• Gamma-Ray Bursts and the Fireball Model
• The extragalactic optical-infrared background radiations, their time evolution and the cosmic photon-photon opacity
• Estimating Black Hole Masses in Active Galaxies Using the Halpha Emission Line
• A very deep Chandra observation of the Perseus cluster: shocks, ripples and conduction
• Particle acceleration by ultra-relativistic shocks: theory and simulations
• The Astrophysics of Ultrahigh Energy Cosmic Rays
• MOJAVE. X. Parsec-Scale Jet Orientation Variations and Superluminal Motion in AGN
• The power of relativistic jets is larger than the luminosity of their accretion disks
• A Search for "Dwarf" Seyfert Nuclei. IV. Nuclei with Broad H-alpha Emission
• MOJAVE: Monitoring of Jets in AGN with VLBA Experiments. V. Multi-epoch VLBA Images
• Particle acceleration at ultrarelativistic shocks: an eigenfunction method
• Broad-band nonthermal emission from molecular clouds illuminated by cosmic rays from nearby supernova remnants
• The microphysics of collisionless shock waves
• The origin of the Broad Line Region in Active Galactic Nuclei
• Energy spectra of cosmic rays accelerated at ultrarelativistic shock waves
• Blazars as Ultra-High-Energy Cosmic-Ray Sources: Implications for TeV Gamma-Ray Observations
• Fermi Discovery of Gamma-Ray Emission from NGC 1275
• Turbulence and Magnetic Field Amplification in Supernova Remnants: Interactions Between A Strong Shock Wave and Multi-Phase Interstellar Medium
• Gravity-driven Turbulence in Galactic Disks
• X-ray Signatures of Evolving Radio Galaxies
• Intermittent radio galaxies and source statistics
• Constraints on the VHE Emissivity of the Universe from the Diffuse GeV Gamma-Ray Background
• VLBA Absorption Imaging of Ionized Gas Associated with the Accretion Disk in NGC 1275
• Magnetic Fields in the Center of the Perseus Cluster
• Kinematics and Excitation of the Molecular Hydrogen Accretion Disc in NGC 1275
• On the Amplification of Magnetic Field by a Supernova Blast Shock Wave in a Turbulent Medium
• Magnetic Field Amplification Associated with the Richtmyer-Meshkov Instability
• The Dense Plasma Torus Around the Nucleus of an Active Galaxy NGC 1052
• VLBI Monitoring of 3C 84 (NGC 1275) in Early Phase of the 2005 Outburst
• On the spine-layer scenario for the very high-energy emission of NGC 1275
• Deep observation of the NGC 1275 region with MAGIC: search of diffuse gamma-ray emission from cosmic rays in the Perseus cluster
• Nonthermal Emission Associated with Strong AGN Outbursts at the Centers of Galaxy Clusters
• Contemporaneous observations of the radio galaxy NGC 1275 from radio to very high energy gamma-rays
• Discovery of a new subparsec counterjet in NGC 1275: the inclination angle and the environment
• X-ray Emitting GHz-Peaked Spectrum Galaxies: Testing a Dynamical-Radiative Model with Broad-Band Spectra
• Turbulent amplification of magnetic field driven by dynamo effect at rippled shocks
• Herschel observations of extended atomic gas in the core of the Perseus cluster
• Radio Quiet AGNs as Possible Sources of Ultra-high Energy Cosmic Rays
• Probing the Parsec-scale Accretion Flow of 3C 84 with Millimeter Polarimetry
• VLBI observations of bright AGN jets with KVN and VERA Array (KaVA): Evaluation of Imaging Capability
• The Efficiency of Magnetic Field Amplification at Shocks by Turbulence
• On the origin of Fanaroff-Riley classification of radio galaxies: Deceleration of supersonic radio lobes
• VLBI and Single Dish Monitoring of 3C84 in the Period of 2009-2011
• Mini radio lobes in AGNs core illumination and their hadronic gamma-ray afterlight
• Cosmic rays from active galactic nuclei
• Exploring the disk-jet connection from the properties of narrow line regions in powerful young radio-loud AGNs
• The Production of Ultra High Energy Cosmic Rays during the Early Epochs of Radio-loud AGN
• The young radio lobe of 3C 84: inferred gas properties in the central 10 parsec
• New class of Very High Energy gamma-ray emitter: radio-dark mini-shells surrounding AGN jets
• Constraining Sources of Ultra High Energy Cosmic Rays Using High Energy Observations with the Fermi Satellite
• Evolution of non-thermal emission from shell associated with AGN jets
• Ambient magnetic field amplification in shock fronts of relativistic jets: an application to GRB afterglows
• Fossil shell emission in dying radio loud AGNs

Cited by in corpus (7)

• The ALMA Discovery of the Rotating Disk and Fast Outflow of Cold Molecular Gas in NGC 1275
• TXS 0128+554: A Young Gamma-Ray Emitting AGN With Episodic Jet Activity
• Evidence of jet-clump interaction: a flip of the radio jet head of 3C~84
• A detailed kinematic study of 3C 84 and its connection to Gamma-rays
• Synchrotron Polarization Radiative Transfer: Relativistic Thermal Electrons Contribution
• Probing the circumnuclear environment of NGC1275 with High-Resolution X-ray spectroscopy
• The Japanese Vision for the Black Hole Explorer Mission