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

页码：815 / 827

页数：13

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