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Ion dynamics and gravitational instability of a dusty plasma

Published online by Cambridge University Press:  13 March 2009

B. P. Pandey  and
C. B. Dwivedi
B. P. Pandey
Affiliation:
Centre of Plasma Physics, Saptaswahid Path, Dispur, Guwahati 781 006, Assam, India
C. B. Dwivedi
Affiliation:
lnstitute of Advanced Study in Science and Technology, Jawaharnagar, Khanpara, Guwahati 781 022, Assam, India
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Abstract

The gravitational instability of a dusty plasma with ion dynamics taken into account is studied. For the range of parameters relevant to planetary rings and interstellar media, we demonstrate that the inclusion of ion dynamics cannot cause additional destabilization of a gravitating dusty plasma system. Streaming of the cold ions, on the other hand, enhances the Jeans condensation of a dusty plasma. Consistency of the results with previous work and new aspects arising owing to consideration of ion dynamics is discussed.

Type
Research Article
Information
Journal of Plasma Physics , Volume 55 , Issue 3 , June 1996 , pp. 395 - 400
Copyright
Copyright © Cambridge University Press 1996

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