Gravitational Instability in a Plasma in a Magnetic Field : I. Ideal Magnetohydrodynamics
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概要
- 論文の詳細を見る
The instability of a plasma supported under gravity by a magnetic field is reconsidered using the magnetohydrodynamic equations of a perfectly conducting fluid. It is shown that the wave number (k) of physically important perturbations is limited to ka〓1 by a finite thickness (a) of the plasma-vacuum boundary surface, and the instability growth rate is given by 〓(g/a)^<1/2>. There are some experimental supports for this result in the theta-pinch data. It is also pointed out how the interchange picture of the instability for a low βcase will be generalized in a high βcase, where β=(plasma pressure)/(magnetic pressure).
- 社団法人日本物理学会の論文
- 1963-09-05
著者
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Sato Masatomo
Department Of Physics And Atomic Energy Research Institute College Of Science And Engineering Nihon
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Sato Masatomo
Department Of Physics College Of Science And Engineering Nihon University
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KAWAKAMI Ichiro
Department of Physics. College of Science and Engineering. Nihon University
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Kawakami Ichiro
Department Of Physics And Atomic Energy Research Institute College Of Science And Engineering Nihon
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Kawakami Ichiro
Department Of Physics College Of Science And Engineering Nihon University
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Kawakami I.
Department of Physics, College of Science and Engineering Nihon University
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