A prescription for the turbulent heating of astrophysical plasmas

Abstract

The ratio of ion to electron heating due to the dissipation of Alfvenic turbulence in astrophysical plasmas is calculated based on a cascade model for turbulence in weakly collisional plasmas. Conditions for validity of this model are discussed, a prescription for the turbulent heating is presented, and it is applied to predict turbulent heating in accretion disks and the interstellar medium.

5 pages, 4 figures, Accepted to Monthly Notices of Royal Astronomical Society Letters

References in corpus (5)

• Anisotropic scaling of magnetohydrodynamic turbulence
• Kinetic Simulations of Magnetized Turbulence in Astrophysical Plasmas
• Alfven Wave Turbulence and Perpendicular Ion Temperatures in Coronal Holes
• Inertial range turbulence in kinetic plasmas
• Microphysical dissipation, turbulence and magnetic fields in hyper-accreting discs

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