Acceleration of energetic particles by large-scale compressible magnetohydrodynamic turbulence

Abstract

Fast particles diffusing along magnetic field lines in a turbulent plasma can diffuse through and then return to the same eddy many times before the eddy is randomized in the turbulent flow. This leads to an enhancement of particle acceleration by large-scale compressible turbulence relative to previous estimates in which isotropic particle diffusion is assumed.

13 pages, 3 figures, accepted for publication in ApJ

References in corpus (9)

• Thermal Conduction in Clusters of Galaxies
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• Transport of Cosmic Rays in Chaotic Magnetic Fields
• Scattering of energetic particles by anisotropic magnetohydrodynamic turbulence with a Goldreich-Sridhar power spectrum
• Nonthermal Emissions from Particles Accelerated by Turbulence in Clusters of Galaxies
• Radio Halo Formation through Magneto-turbulent Particle Acceleration in Clusters of Galaxies
• Observations of O VI Emission from the Diffuse Interstellar Medium
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• An inner disk below the ADAF: the intermediate spectral state of black hole accretion
• A Classification Scheme For Turbulent Acceleration Processes In Solar Flares
• Non-resonant particle acceleration in strong turbulence: comparison to kinetic and MHD simulations
• Powerlaw spectra from stochastic acceleration
• The Efficiency of Second-Order Fermi Acceleration by Weakly Compressible MHD Turbulence
• Theoretical approaches to particle propagation and acceleration in turbulent intergalactic medium
• On the compressibility effect in test particle acceleration by magnetohydrodynamic turbulence
• Test particle energization and the anisotropic effects of dynamical MHD turbulence
• Turbulent Reacceleration of Streaming Cosmic Rays
• Noise storm continua: power estimates for electron acceleration
• A Joint Chandra and XMM-Newton View of Abell 3158: Massive Off-Centre Cool Gas Clump As A Robust Diagnostic of Merger Stage
• Further constraints on electron acceleration in solar noise storms