Drift Kelvin-Helmholtz instabilities in space plasmas

Details Drift Kelvin-Helmholtz instabilities in space plasmas Drift Kelvin-Helmholtz instabilities in space plasmas

Nov 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992ap%26ss.197...43s&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 197, no. 1, p. 43-55.

Astronomy and Astrophysics

Astrophysics

1

Electric Fields, Kelvin-Helmholtz Instability, Magnetohydrodynamic Stability, Space Plasmas, Magnetic Fields, Magnetoacoustics, Magnetohydrodynamic Flow

Scientific paper

Drift Kelvin-Helmholtz instabilities of a finite-beta plasma in equilibrium electric and magnetic fields which are perpendicular to each other are studied using two fluid equations. Three types of these instabilities are considered including the magnetosonic instability of a finite beta-homogeneous plasma, the electrostatic drift instability of an inhomogeneous low-beta plasma, and the magneto-acoustic instability of a high-beta inhomogeneous isothermal plasma. It is shown that the electric field has either stabilizing or destabilizing effect depending on conditions under consideration.

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