Structure of almost collisionless shocks in a magnetoplasma and the ion- acoustic instability
Conference
·
OSTI ID:4413904
- ed.
From international symposium on dynamics of ionized gases; Tokyo, Japan (13 Sep 1971). See CONF-710921 --. A phenomenological treatment of the anomalous resistivity resulting from the ion-acoustic instability is described. The effective collision'' frequency occurring in the resistiviiy is taken to be the maximum growth rate predicted by linear theory for the ion-acoustic instability. This resistivity is used to calculate shock structures for shocks propagating perpendicularly to magnetic fields, and it is found that the shock thickness and downstream temperature ratio T/sub i//T/sub e/ agree well with some experimental results. It is concluded that ion-acoustic instability does play an important role in determining collisionless shock wave structure. (auth)
- Research Organization:
- Oxford Univ.
- NSA Number:
- NSA-29-001922
- OSTI ID:
- 4413904
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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