ON THE THERMAL-STABILITY OF A RADIATING PLASMA SUBJECT TO NONLOCAL THERMAL CONDUCTION .1. LINEAR-ANALYSIS

被引:13
作者
CHUN, E [1 ]
ROSNER, R [1 ]
机构
[1] UNIV CHICAGO,ENRICO FERMI INST,CHICAGO,IL 60637
关键词
GALAXIES; CLUSTERING; MHD; PLASMAS; SUN; CORONA;
D O I
10.1086/172628
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We study the linear stability of an optically thin uniform radiating plasma subject to nonlocal heat transport. We derive the dispersion relation appropriate to this problem, and the marginal wavenumbers for instability. Our analysis indicates that nonlocal heat transport acts to reduce the stabilizing influence of thermal conduction, and that there are critical values for the electron mean free path such that the plasma is always unstable. Our results may be applied to a number of astrophysical plasmas, one such example being the halos of clusters of galaxies.
引用
收藏
页码:678 / 688
页数:11
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