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Drift and tearing modes in a sheared cylinder

Journal Article · · Phys. Fluids; (United States)
DOI:https://doi.org/10.1063/1.865796· OSTI ID:5208503

Drift and tearing modes in a sheared cylindrical collisionless plasma column are studied. A set of differential equations in the radial coordinate is derived with small gyroradius and low-..beta.. expansion. The finite-..beta.. effects include curvature drifts, gradient-B drifts, and the parallel magnetic field perturbation. Algebraic elimination reduces the resulting set of equations to a fourth-order system. Analysis shows that bad curvature does not drive the collisionless modes unstable.

Research Organization:
Department of Astrophysical, Planetary, and Atmospheric Sciences, University of Colorado, Boulder, Colorado 80309
OSTI ID:
5208503
Journal Information:
Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 29:11; ISSN PFLDA
Country of Publication:
United States
Language:
English