Abstract
AbstractThe dynamic stability of a stratified layer of a partially ionized, self‐gravitating plasma is studied to investigate the effects of finite electrical conductivity. The whole system is immersed in a uniform vertical magnetic field. It is first shown that the solution is characterized by a variational principle. An explicit solution has been then obtained for a semi‐infinite composite plasma in which the density has a one‐dimensional gradient along the vertical.Numerical calculations show that the influence of neutral gas friction and self‐gravitation is stabilizing whereas character of finite electric conductivity is destabilizing.
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