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Title: Kinetic Alfven wave instability in a Lorentzian dusty plasma: Non-resonant particle approach

Abstract

Analysis of the electromagnetic streaming instability is carried out which is related to the cross field drift of kappa distributed ions. The linear dispersion relation for electromagnetic wave using Vlasov-fluid equations in a dusty plasma is derived. Modified two stream instability (MTSI) in a dusty plasma has been discussed in the limit {omega}{sub pd}{sup 2}/c{sup 2}k{sub perpendicular}{sup 2}<<1. Numerical calculations of the growth rate of instability have been carried out. Growth rates of kinetic Alfven instability are found to be small as compared to MTSI. Maximum growth rates for both instabilities occur in oblique directions for V{sub 0}{>=}V{sub A}. It is shown that the presence of both the charged dust particles and perpendicular ion beam sensibly modify the dispersion relation of low-frequency electromagnetic wave. The dispersion characteristics are found to be insensible to the superthermal character of the ion distribution function. Applications to different intersteller regions are discussed.

Authors:
;  [1];  [2];  [3];  [4]
  1. Space Research Institute, Austrian Academy of Sciences, Schmiedlstrasse 6, A-8042 Graz (Austria)
  2. (Austria)
  3. Institute of Computational Modelling, 660036 Krasnoyarsk, Russia and Siberian Federal University, 660041 Krasnoyarsk (Russian Federation)
  4. Virtual Vehicle Competence Center (vif), Inffeldgasse 21a, 8010 Graz (Austria)
Publication Date:
OSTI Identifier:
22046911
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 18; Journal Issue: 7; Other Information: (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ALFVEN WAVES; DISPERSION RELATIONS; DISTRIBUTION FUNCTIONS; DUSTS; ELECTROMAGNETIC RADIATION; ION BEAMS; IONS; PLASMA; PLASMA FLUID EQUATIONS; PLASMA SIMULATION; TWO-STREAM INSTABILITY

Citation Formats

Rubab, N., Biernat, H. K., Institute of Physics, University of Graz, Universitaetplatz 5, A-8010 Graz, Erkaev, V., and Langmayr, D. Kinetic Alfven wave instability in a Lorentzian dusty plasma: Non-resonant particle approach. United States: N. p., 2011. Web. doi:10.1063/1.3599600.
Rubab, N., Biernat, H. K., Institute of Physics, University of Graz, Universitaetplatz 5, A-8010 Graz, Erkaev, V., & Langmayr, D. Kinetic Alfven wave instability in a Lorentzian dusty plasma: Non-resonant particle approach. United States. doi:10.1063/1.3599600.
Rubab, N., Biernat, H. K., Institute of Physics, University of Graz, Universitaetplatz 5, A-8010 Graz, Erkaev, V., and Langmayr, D. Fri . "Kinetic Alfven wave instability in a Lorentzian dusty plasma: Non-resonant particle approach". United States. doi:10.1063/1.3599600.
@article{osti_22046911,
title = {Kinetic Alfven wave instability in a Lorentzian dusty plasma: Non-resonant particle approach},
author = {Rubab, N. and Biernat, H. K. and Institute of Physics, University of Graz, Universitaetplatz 5, A-8010 Graz and Erkaev, V. and Langmayr, D.},
abstractNote = {Analysis of the electromagnetic streaming instability is carried out which is related to the cross field drift of kappa distributed ions. The linear dispersion relation for electromagnetic wave using Vlasov-fluid equations in a dusty plasma is derived. Modified two stream instability (MTSI) in a dusty plasma has been discussed in the limit {omega}{sub pd}{sup 2}/c{sup 2}k{sub perpendicular}{sup 2}<<1. Numerical calculations of the growth rate of instability have been carried out. Growth rates of kinetic Alfven instability are found to be small as compared to MTSI. Maximum growth rates for both instabilities occur in oblique directions for V{sub 0}{>=}V{sub A}. It is shown that the presence of both the charged dust particles and perpendicular ion beam sensibly modify the dispersion relation of low-frequency electromagnetic wave. The dispersion characteristics are found to be insensible to the superthermal character of the ion distribution function. Applications to different intersteller regions are discussed.},
doi = {10.1063/1.3599600},
journal = {Physics of Plasmas},
issn = {1070-664X},
number = 7,
volume = 18,
place = {United States},
year = {2011},
month = {7}
}