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.
17 pages, 7 figures, Proceedings of Science, PoS(ICRC2021)041
References in corpus (6)
- Compressible Turbulence in Galaxy Clusters: Physics and Stochastic Particle Re-acceleration
- Cosmic Ray Propagation: Nonlinear Diffusion Parallel and Perpendicular to Mean Magnetic Field
- Cosmic ray transport in starburst galaxies
- Scatter broadening of pulsars and implications on the interstellar medium turbulence
- On particle acceleration and transport in plasmas in the Galaxy: theory and observations
- On the broad-band synchrotron spectra of pulsar wind nebulae