Fast-time-scale plasma turbulence and the collisionless tearing mode

Details Fast-time-scale plasma turbulence and the collisionless tearing mode Fast-time-scale plasma turbulence and the collisionless tearing mode

Jul 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984mnras.209..335d&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 209, July 15, 1984, p. 335-342.

Physics

Plasma Physics

2

Collisionless Plasmas, Magnetic Fields, Plasma Slabs, Plasma Turbulence, Tearing Modes (Plasmas), Astrophysics, Doppler Effect, Fourier Transformation, Magnetohydrodynamics, Plasma Physics

Scientific paper

The role of ponderomotive effects arising from fast-time-scale plasma turbulence in the development of tearing-mode instability in a collisionless nonrelativistic plasma with dominant Langmuir waves and an electron plasma frequency larger than the electron gyrofrequency is investigated theoretically, applying the MHD equations derived by Dendy and ter Haar (1984). An equation for the magnetic vector component parallel to the magnetic field is obtained which contains a ponderomotive driving term. Numerical calculations of tearing-mode growth rates for typical laboratory and astrophysical plasmas are performed, and turbulent growth rates significantly larger than those for zero turbulence are found.

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