Turbulence-induced magnetic fields and the structure of Cosmic Ray modified shocks (2009)
Beresnyak, A., Jones, T. W., Lazarian, A.
We propose a model for Diffusive Shock Acceleration (DSA) in which stochastic magnetic fields in the shock precursor are generated through purely fluid mechanisms of a so-called small-scale dynamo....
Structure of Stationary Strong Imbalanced Turbulence (2009)
In this paper we systematically study the spectrum and structure of incompressible MHD turbulence by means of high resolution direct numerical simulations. We considered both balanced and imbalanced...
Growth of Magnetic Fields Induced by Turbulent Motions (2008)
Cho, J., Vishniac, E., Beresnyak, A., Lazarian, A., Ryu, D.
We present numerical simulations of driven magnetohydrodynamic (MHD) turbulence with weak/moderate imposed magnetic fields. The main goal is to clarify dynamics of magnetic field growth. We also...
Lazarian, A., Beresnyak, A., Yan, H., Opher, M., Liu, Y.
Astrophysical fluids, including interstellar and interplanetary medium, are magnetized and turbulent. Their appearance, evolution, and overall properties are determined by the magnetic turbulence...
Density Statistics of Compressible MHD Turbulence (2007)
Lazarian, A., Kowal, G., Beresnyak, A.
Density is the turbulence statistics that is most readily available from observations. Different regimes of turbulence correspond to different density spectra. For instance, the viscosity-damped...
Strong Imbalanced Turbulence (2007)
We consider stationary, forced, imbalanced, or cross-helical MHD Alfvenic turbulence where the waves traveling in one direction have higher amplitudes than the opposite waves. This paper is dedicated...
Turbulence Effects at Small Scales (2006)
It is most natural to assume that mysterious Small Ionized and Neutral Structures (SINS) indiffuse ISM arise from turbulence. There are two obvious problem with such an explanation, however. First of...
Cascading of Fast-Mode Balanced and Imbalanced Turbulence (2006)
Suzuki, T. K., Lazarian, A., Beresnyak, A.
We study the cascading of fast MHD modes in magnetically dominated plasma by performing one-dimensional (1D) dynamical simulations. We find that the cascading becomes more efficient as an angle...
Density Fluctuations in MHD Turbulence: Spectra, Intermittency and Topology (2006)
Kowal, G., Lazarian, A., Beresnyak, A.
We perform three-dimensional (3D) compressible MHD simulations over many dynamical times for an extended range of sonic and Alfven Mach numbers and analyze the statistics of 3D density and 2D column...
MHD Turbulence: Properties of Alfven, Slow and Fast Modes (2005)
We summarise basic properties of MHD turbulence. First, MHD turbulence is not so messy as it is believed. In fact, the notion of strong non-linear coupling of compressible and incompressible motions...
Density scaling and anisotropy in supersonic MHD turbulence (2005)
Beresnyak, A., Lazarian, A., Cho, J.
We study the statistics of density for supersonic turbulence in a medium with magnetic pressure larger than the gaseous pressure. This study is motivated by molecular cloud research. Our simulations...