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Resonant flow instability of space-charge waves in self-gravitating Lorentzian dusty plasma columns

Title
Resonant flow instability of space-charge waves in self-gravitating Lorentzian dusty plasma columns
Author
이명재
Keywords
resonant flow instability; Lorentzian plasma; non-thermal effect; Jeans effect; space-charge wave
Issue Date
2019-06
Publisher
CANADIAN SCIENCE PUBLISHING
Citation
CANADIAN JOURNAL OF PHYSICS, v. 97, no. 6, Page. 651-655
Abstract
The dispersion characteristics and the resonant instability mode of the space-charge wave are investigated in a streaming Lorentzian dusty plasma column by using the normal mode analysis. The result shows that the non-thermal character of the Lorentzian cylindrical dusty plasma enhances the unstable property of the space-charge wave due to the beam-plasma interaction. It is found that the resonant growth rates of the space-charge wave increase with an increase of the harmonic-order of the root of the Bessel function. It is also found that the influence of the self-gravitation enhances the resonant growth rate of the space-charge wave of the Lorentzian cylindrical dusty plasma. In addition, it is found the resonant growth rate decreases with an increase of the radius of the dusty plasma column. The variation of the resonant instability mode due to the non-thermal character and geometric effects is also discussed.
URI
https://www.nrcresearchpress.com/doi/10.1139/cjp-2018-0530https://repository.hanyang.ac.kr/handle/20.500.11754/151846
ISSN
0008-4204; 1208-6045
DOI
10.1139/cjp-2018-0530
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
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