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JOURNALS // Meždunarodnyj naučno-issledovatel'skij žurnal // Archive

Meždunar. nauč.-issled. žurn., 2018 Issue 7(73), Pages 13–17 (Mi irj266)

PHYSICS AND MATHEMATICS

On effect of longitudinal dust motion on stability of homogeneous state of magnetic dust plasma

V. Yu. Zakharov, T. G. Chernova

Kaluga Branch of Bauman Moscow State Technical University

Abstract: The propagation of low-frequency electromagnetic waves of small amplitude in a low-pressure dust plasma is considered in the paper. Dust is considered to be cold and has both a transverse and longitudinal velocity relative to the direction of the external magnetic field. The fourth-degree dispersion equation for the phase velocities of waves is analytically studied. Limits on the unperturbed plasma parameters with stable homogeneous state of plasma are obtained. It is shown that in the absence of sufficiently large values of the velocity component of the dust component along the magnetic field, the homogeneous state of plasma is unstable concerning small perturbations.

Keywords: dust plasma, small amplitude waves, dispersion equation, the stability of a homogeneous plasma state.

DOI: 10.23670/IRJ.2018.73.7.002



© Steklov Math. Inst. of RAS, 2026