Dissipation in Compressible Magnetohydrodynamic Turbulence
J. M. Stone, E. C. Ostriker, C. F. Gammie;
ApJ, 1998, 508, L99
ABSTRACT:We report results of a three-dimensional, high resolution (up to 512^3) numerical investigation of supersonic compressible
magnetohydrodynamic turbulence.
We consider both forced and decaying turbulence.
The
model parameters are appropriate to conditions found in Galactic molecular
clouds.
We find that the dissipation time of turbulence is of the order of the flow
crossing time or smaller, even in the presence of strong magnetic fields.
About
half of the dissipation occurs in shocks.
Weak magnetic fields are
amplified and tangled by the turbulence, while strong fields remain well
ordered.
KEYWORDS: magnetohydrodynamics: mhd, ism: kinematics and dynamics, ism: magnetic fields, turbulence, waves
PERSOKEY:turbulence, ,
CODE: stone98