A prescription for the turbulent heating of astrophysical plasmas

被引：142
作者：
Howes, G. G. [1 ]
机构：
[1] Univ Iowa, Dept Phys & Astron, Iowa City, IA 52245 USA
来源：
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2010年 / 409卷 / 01期
关键词：
accretion; accretion discs; plasmas; turbulence; ISM: kinematics and dynamics; Galaxy: centred; ALFVEN-WAVE TURBULENCE; DIFFUSE IONIZED-GAS; INTERSTELLAR TURBULENCE; DISSIPATION; GYROKINETICS; ANISOTROPY; EQUATIONS; SPECTRUM;
D O I：
10.1111/j.1745-3933.2010.00958.x
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The ion-to-electron heating ratio 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 discs and the interstellar medium.
引用
收藏
页码：L104 / L108
页数：5
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