Kinetic Alfvén wave instability in a Lorentzian dusty magnetoplasma
作者： N. Rubab , N. V. Erkaev , D. Langmayr , H. K. Biernat
DOI: 10.1063/1.3491336
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摘要: This study presents a theoretical approach to analyze the influence of kappa distributed streaming ions and magnetized electrons on plasma wave propagation in presence dust by employing two-potential theory. In particular, analytical expressions under certain conditions are derived for various modes comprising kinetic Alfven instability, two stream acoustic whistler waves. A dispersion relation Alfven-like instability has been derived. The effects particles Lorentzian index growth rates threshold velocity excitation examined. is observed be destabilizing slow motion stabilizing fast motions. It also that magnetic field superthermal hinders rate instability. Possible applications space astrophysical situations discussed.
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