Diffusion of cosmic rays in MHD turbulence
arXiv:2110.08282
Abstract
We review some recent findings on diffusion of cosmic rays (CRs) in magnetohydrodynamic (MHD) turbulence obtained by adopting the numerically-tested model of MHD turbulence, including perpendicular superdiffusion of CRs, inefficient gyroresonant scattering by Alfvén and slow modes with scale-dependent turbulence anisotropy, resonance-broadened Transit Time Damping (TTD) interaction, and mirror diffusion. As the diffusion behavior of CRs strongly depends on the properties of MHD turbulence, theoretical modeling of CR diffusion, its numerical testing, and interpretation of CR-related observations require proper modeling of MHD turbulence.
arXiv comment17 pages, 7 figures, Proceedings of Science, PoS(ICRC2021)041
References in corpus (24)
- The Anisotropy of MHD Alfvénic Turbulence
- Compressible Magnetohydrodynamic Turbulence: mode coupling, scaling relations, anisotropy, new regime and astrophysical implications
- Compressible Turbulence in Galaxy Clusters: Physics and Stochastic Particle Re-acceleration
- Compressible Sub-Alfvenic MHD turbulence in Low-beta Plasmas
- Compressible MHD Turbulence in Interstellar Plasmas
- Scattering of Cosmic Rays by Magnetohydrodynamic Interstellar Turbulence
- Cosmic Ray Propagation: Nonlinear Diffusion Parallel and Perpendicular to Mean Magnetic Field
- Scattering of energetic particles by anisotropic magnetohydrodynamic turbulence with a Goldreich-Sridhar power spectrum
- Velocity Field of Compressible MHD Turbulence: Wavelet Decomposition and Mode Scalings
- Density scaling and anisotropy in supersonic MHD turbulence
- Superdiffusion of Cosmic Rays: Implications for Cosmic Ray Acceleration
- Obtaining Spectra of Turbulent Velocity from Observations
- Velocity Spectrum for HI at High Latitudes
- Cosmic ray transport in starburst galaxies
- Particle reacceleration by compressible turbulence in galaxy clusters: effects of reduced mean free path
- Diffusion of cosmic rays in MHD turbulence with magnetic mirrors
- Scatter broadening of pulsars and implications on the interstellar medium turbulence
- Role of Cosmic Ray Streaming and Turbulent Damping in Driving Galactic Winds
- Particle acceleration in relativistic turbulence: A theoretical appraisal
- Resonance Broadening and Heating of Charged Particles in Magnetohydrodynamic Turbulence
- Trapping of cosmic rays in MHD turbulence
- On particle acceleration and transport in plasmas in the Galaxy: theory and observations
- On the broad-band synchrotron spectra of pulsar wind nebulae
- Mirror diffusion of cosmic rays in highly compressible turbulence near supernova remnants