On the Kelvin-Helmholtz instabilities of high-velocity magnetized shear layers

Details On the Kelvin-Helmholtz instabilities of high-velocity magnetized shear layers On the Kelvin-Helmholtz instabilities of high-velocity magnetized shear layers

Mar 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...302..188r&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 302, March 1, 1986, p. 188-199.

Astronomy and Astrophysics

Astrophysics

22

Kelvin-Helmholtz Instability, Magnetohydrodynamic Flow, Plasma Layers, Shear Layers, Space Plasmas, Earth Magnetosphere, Ideal Fluids, Perturbation Theory, Solar Wind, Standing Waves, Traveling Waves

Scientific paper

The Kelvin-Helmholtz instability of a finite-width, ideal magnetohydrodynamic shear layer with a 'linear' velocity profile in the transition region is considered. The magnetic field is assumed constant and parallel to the direction (z) of the streaming. The density and temperature of the plasma are also assumed constant. Two distinct regimes of instability are found to exist in the (K, M-sub-s)-plane: unstable standing waves which have omega-sub-r = 0, and unstable traveling waves which have omega-sub-r not equal to zero and which are a consequence of the finite width of the shear layer.

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