Compressible Relativistic Magnetohydrodynamic Turbulence in Magnetically-Dominated Plasmas And Implications for A Strong-Coupling Regime
arXiv:1610.01373 · doi:10.3847/2041-8205/831/2/L11
Abstract
In this Letter, we report compressible mode effects on relativistic magnetohydrodynamic (RMHD) turbulence in Poynting-dominated plasmas using 3-dimensional numerical simulations. We decomposed fluctuations in the turbulence into 3 MHD modes (fast, slow, and Alfvén) following the procedure mode decomposition in (Cho & Lazarian 2002), and analyzed their energy spectra and structure functions separately. We also analyzed the ratio of compressible mode to Alfvén mode energy with respect to its Mach number. We found the ratio of compressible mode increases not only with the Alfvén Mach number but with the background magnetization, which indicates a strong coupling between the fast and Alfvén modes and appearance of a new regime of RMHD turbulence in Poynting-dominated plasmas where the fast and Alfvén modes strongly couples and cannot be separated, different from the non-relativistic MHD case. This finding will affect particle acceleration efficiency obtained by assuming Alfvénic critical balance turbulence, and will change the resulting photon spectra by non-thermal electrons.
arXiv comment5 pages, 3 figures, accepted for publication in ApJL
References in corpus (27)
- Reconnection in a Weakly Stochastic Field
- A weak turbulence theory for incompressible MHD
- The Anisotropy of MHD Alfvénic Turbulence
- Simulations of Incompressible MHD Turbulence
- Compressible Magnetohydrodynamic Turbulence: mode coupling, scaling relations, anisotropy, new regime and astrophysical implications
- An Unsplit Godunov Method for Ideal MHD via Constrained Transport
- Simulations of MHD Turbulence in a Strongly Magnetized Medium
- Compressible Sub-Alfvenic MHD turbulence in Low-beta Plasmas
- Compressible MHD Turbulence in Interstellar Plasmas
- Stochastic Acceleration of Electrons and Protons. I. Acceleration by Parallel Propagating Waves
- The Piecewise Parabolic Method for Multidimensional Relativistic Fluid Dynamics
- The structure and emission model of the relativistic jet in the quasar 3C 279 inferred from radio to high-energy gamma-ray observations in 2008-2010
- A five-wave HLL Riemann solver for relativistic MHD
- Superdiffusion of Cosmic Rays: Implications for Cosmic Ray Acceleration
- Three-Dimensional Simulations of MHD Turbulence Behind Relativistic Shock Waves and Their Implications for GRBs
- Numerical Simulations of Driven Relativistic MHD Turbulence
- Spectra of strong MHD Turbulence from high-resolution simulations
- Scaling laws and diffuse locality of balanced and imbalanced MHD turbulence
- Direct Evidence of the Transition from Weak to Strong MHD Turbulence
- Spatial growth of current-driven instability in relativistic rotating jets and the search for magnetic reconnection
- Spectral and Intermittency Properties of Relativistic Turbulence
- Magnetization degree at the jet base of M87 derived from the event horizon telescope data: Testing magnetically driven jet paradigm
- Simulation of Relativistic Force-free Magnetohydrodynamic Turbulence
- Universality and intermittency in relativistic turbulent flows of a hot plasma
- Turbulent Reconnection in Relativistic Plasmas And Effects of Compressibility
- The Most Intensive Gamma-Ray Flare of Quasar 3C 279 with the Second-Order Fermi Acceleration
- Imbalanced Relativistic Force-Free Magnetohydrodynamic Turbulence
Cited by in corpus (23)
- Particle Acceleration in Relativistic Plasma Turbulence
- 3D Turbulent Reconnection: Theory, Tests and Astrophysical Implications
- Tracing magnetic fields with spectroscopic channel maps
- Damping of Alfven waves by Turbulence and its Consequences: from Cosmic-Rays Streaming to Launching Winds
- Gradients of Synchrotron Polarization: Tracing 3D distribution of magnetic fields
- Particle acceleration in relativistic turbulence: A theoretical appraisal
- Numerical investigation of kinetic turbulence in relativistic pair plasmas I: Turbulence statistics
- Kinetic turbulence in shining pair plasma: intermittent beaming and thermalization by radiative cooling
- Dissipation of Alfvén Waves in Relativistic Magnetospheres of Magnetars
- Gamma-ray Bursts Induced by Turbulent Reconnection
- Non-resonant particle acceleration in strong turbulence: comparison to kinetic and MHD simulations
- Particle energization in relativistic plasma turbulence: solenoidal versus compressive driving
- Cascades and Dissipative Anomalies in Relativistic Fluid Turbulence
- Strong Coupling of Alfvén and Fast Modes in Compressible Relativistic Magnetohydrodynamic Turbulence in Magnetically-Dominated Plasmas
- Weak Alfvénic turbulence in relativistic plasmas. Part 1. Dynamical equations and basic dynamics of interacting resonant triads
- Evolution of 3-dimensional Relativistic Current Sheets and Development of Self-Generated Turbulence
- Kinetic Simulations of Imbalanced Turbulence in a Relativistic Plasma: Net Flow and Particle Acceleration
- Confinement of the Crab Nebula with tangled magnetic field by its supernova remnant
- Force-free wave interaction in magnetar magnetospheres: Computational modeling in axisymmetry
- Investigating Turbulence Effects on Magnetic Reconnection Rates Through Three-Dimensional Resistive Magnetohydrodynamical Simulations
- High-energy Emission from Turbulent Electron-ion Coronae of Accreting Black Holes
- Property of downstream turbulence driven by the special relativistic shock-clump interaction
- Turbulence Mode Decomposition and Anisotropy in Magnetically Dominated Collisionless Plasmas