On the thermal stability of a radiating plasma subject to nonlocal thermal conduction. I - Linear analysis

作者：Eun-Jee Chun, R. Rosner · 发表于：The Astrophysical Journal · 年份：1993 · DOI：10.1086/172628 · 被引用次数：8 · 研究领域：Gas Dynamics and Kinetic Theory、Optical properties and cooling technologies in crystalline materials、Advanced Thermodynamics and Statistical Mechanics

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.