Thermal stability of a weakly magnetized rotating plasma

被引：10
|
作者：
Nipoti, Carlo [1 ]
Posti, Lorenzo [1 ]
机构：
[1] Univ Bologna, Dipartimento Astron, I-40127 Bologna, Italy
来源：
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2013年 / 428卷 / 01期
关键词：
instabilities; ISM: clouds; ISM: kinematics and dynamics; galaxies: clusters: general; LOCAL SHEAR INSTABILITY; INTRACLUSTER MEDIUM; MAGNETOTHERMAL INSTABILITY; COOLING FLOWS; DILUTE PLASMA; CLUSTERS; GALAXY; GAS; FIELDS; DISKS;
D O I：
10.1093/mnras/sts070
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The thermal stability of a weakly magnetized, rotating, stratified, optically thin plasma is studied by means of linear-perturbation analysis. We derive dispersion relations and criteria for stability against axisymmetric perturbations that generalize previous results on either non-rotating or unmagnetized fluids. The implications for the hot atmospheres of galaxies and galaxy clusters are discussed.
引用
收藏
页码：815 / 827
页数：13
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