Damping of MHD turbulence in partially ionized plasma: implications for cosmic ray propagation
arXiv:1506.05585 · doi:10.3847/0004-637X/826/2/166
Abstract
We study the damping from neutral-ion collisions of both incompressible and compressible magnetohydrodynamic (MHD) turbulence in partially ionized medium. We start from the linear analysis of MHD waves applying both single-fluid and two-fluid treatments. The damping rates derived from the linear analysis are then used in determining the damping scales of MHD turbulence. The physical connection between the damping scale of MHD turbulence and cutoff boundary of linear MHD waves is investigated. Our analytical results are shown to be applicable in a variety of partially ionized interstellar medium (ISM) phases and solar chromosphere. As a significant astrophysical utility, we introduce damping effects to propagation of cosmic rays in partially ionized ISM. The important role of turbulence damping in both transit-time damping and gyroresonance is identified.
29 pages, 16 figures
References in corpus (15)
- Compressible Turbulence in Galaxy Clusters: Physics and Stochastic Particle Re-acceleration
- Cosmic Ray Propagation: Nonlinear Diffusion Parallel and Perpendicular to Mean Magnetic Field
- Stochastic reacceleration of relativistic electrons by turbulent reconnection: a mechanism for cluster-scale radio emission ?
- Strong Imbalanced Turbulence
- Superdiffusion of Cosmic Rays: Implications for Cosmic Ray Acceleration
- Cosmic Ray Scattering in Compressible Turbulence
- Spectra of strong MHD Turbulence from high-resolution simulations
- Sub-Alfvenic Non-Ideal MHD Turbulence Simulations with Ambipolar Diffusion: I. Turbulence Statistics
- Magnetoacoustic waves in a partially ionized two-fluid plasma
- Overdamped Alfven waves due to ion-neutral collisions in the solar chromosphere
- Particle Acceleration by Fast Modes in Solar Flares
- On the parallel spectrum in MHD Turbulence
- Cosmic Ray transport through gyroresonance instability in compressible turbulence
- A Two-Fluid Method for Ambipolar Diffusion
- Viscosity effects on waves in partially and fully ionized plasma in magnetic field
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