Dispersion and Stability of Waves in Plasmas in the Presence of a Coriolis Force

Details Dispersion and Stability of Waves in Plasmas in the Presence of a Coriolis Force Dispersion and Stability of Waves in Plasmas in the Presence of a Coriolis Force

May 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974ap%26ss..28...91v&link_type=abstract

Astrophysics and Space Science, Volume 28, Issue 1, pp.91-99

Astronomy and Astrophysics

Astrophysics

3

Scientific paper

The dispersion law for the propagation of waves in cold magnetized plasmas is derived for arbitrary directions of the rotation axis with respect to the static magnetic field. The waves are shown to be stable, not only in the case of a cold plasma, but in any plasma case which yields hermitian mobility tensors. An interesting special case is when the rotation and magnetization axes are parallel, because then for suitable values of rotation and external magnetic field the two effects can cancel each other, though only for one plasma species at the time. The rotation thus decisively affects and shifts the number and width of the existing pass- and stop-bands in a magnetized plasma. The inclusion of thermal effects through a scalar barotropic pressure is not nearly as significant.

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