On the efficiency of particle acceleration by rotating magnetospheres in AGN

Abstract

To investigate the efficiency of centrifugal acceleration of particles as a possible mechanism for the generation of ultra-high $\gamma$-ray nonthermal emission from TeV blazars, we study the centrifugal acceleration of electrons by rotating magnetic field lines, for an extended range of inclination angles and determine the maximum Lorentz factors ${\gamma }_{max}$ attainable by the electrons via this process. {Two principal limiting mechanisms for the particle acceleration, inverse Compton scattering and breakdown of the bead-on-the-wire approximation, are examined. Particles may be centrifugally accelerated up to ${\gamma }_{max}\simeq 10^8$ and the main limiting mechanism for the ${\gamma }_{max}$ is the inverse Compton scattering. The energy of centrifugally accelerated particles can be amply sufficient for the generation (via inverse Compton scattering) of the ultra-high energy (up to $20TeV$) gamma emission in TeV blazars.

7 pages 5 figures

References in corpus (15)

• The Cosmic Infrared Background: Measurements and Implications
• The Axisymmetric Pulsar Magnetosphere
• A wide field Hubble Space Telescope study of the cluster CL0024+16 at z=0.4. I: morphological distributions to 5 Mpc radius
• The Rest-Frame Optical Luminosity Density, Color, and Stellar Mass Density of the Universe from z=0 to z=3
• The Millennium Arecibo 21-cm Absorption Line Survey. I. Techniques and Gaussian Fits
• ASCA Observations of Blazars and Multiband Analysis
• Shear acceleration in relativistic astrophysical jets
• Magnetorotationally-Driven Galactic Turbulence and the Formation of Giant Molecular Clouds
• Energetics of Tev Blazars and Physical Constraints on their Emission Regions
• Very High Energy Gamma-Ray Astronomy
• GeV Emission from TeV Blazars and Intergalactic Magnetic Fields
• Centrifugally driven relativistic dynamics on curved trajectories
• INTEGRAL Spectroscopy of IRAS 17208-0014: Implications for the Evolutionary Scenarios of Ultraluminous Infrared Galaxies
• Observation of gamma-rays greater than 10 TeV from Markarian 421
• On the kinematics of a corotating relativistic plasma stream in the perpendicular rotator model of a pulsar magnetosphere

Cited by in corpus (31)

• On the origin of the gamma-ray emission from the flaring blazar PKS 1222+216
• Variable VHE gamma-ray emission from non-blazar AGNs
• TeV variability in blazars: how fast can it be?
• Cen A as TeV gamma-ray and possible UHE cosmic-ray source
• Non-thermal Processes in Black-Hole-Jet Magnetospheres
• On particle acceleration and very high energy gamma-ray emission in Crab-like pulsars
• Extremely efficient Zevatron in rotating AGN magnetospheres
• Blazars at Very High Energies: Emission Modelling
• Pulsed VHE emission from the Crab Pulsar in the context of magnetocentrifugal particle acceleration
• Particle acceleration close to the supermassive black hole horizon: the case of M87
• On the very high energy spectrum of the Crab pulsar
• On the simultaneous generation of high energy emission and submillimeter/infrared radiation from active galactic nuclei
• Is very high energy emission from the BL Lac 1ES 0806+524 centrifugally driven?
• Efficiency of the centrifugally induced curvature drift instability in AGN winds
• On the rotationally driven pevatron in the centre of the Milky Way
• Quasi-linear diffusion driving the synchrotron emission in active galactic nuclei
• Centrifugally driven electrostatic instability in extragalactic jets
• The Synchrotron Emission Mechanism in the Recently Detected Very High Energy Radiation from the Crab Pulsar
• Synchrotron emission driven by the Cherenkov-drift instability in active galactic nuclei
• Centrifugal acceleration in the isotropic photon field
• Cross section of curvature radiation absorption
• New mechanism of acceleration of particles by stellar black holes
• The generation of connected high and very high energy $\gamma$-rays and radio emission in active galactic nuclei
• 3D study of centrifugal acceleration in isotropic photon fields
• On the role of rotation in the outflows of the Crab pulsar
• Resonant energization of particles by radio AGN
• On the mechanism of the pulsed high energy emission from the pulsar PSR B1509-58
• Radio emission of magnetars driven by the quasi-linear diffusion
• Centrifugally driven relativistic particles: general treatment and new solutions
• Rotationally-driven VHE emission from the Vela pulsar
• Maximum possible energies of electrons accelerated in magnetospheres of rotating black holes