Two-fluid theory of the drift kink instability

Authors
Daughton, W
Citation
W. Daughton, Two-fluid theory of the drift kink instability, J GEO R-S P, 104(A12), 1999, pp. 28701-28707
Citations number
31
Categorie Soggetti
Space Sciences
Journal title
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
ISSN journal
21699380 → ACNP
Volume
104
Issue
A12
Year of publication
1999
Pages
28701 - 28707
Database
ISI
SICI code
0148-0227(199912)104:A12<28701:TTOTDK>2.0.ZU;2-H
Abstract
A simple two-fluid theory of the drift kink instability is developed. The v alidity of the theory is restricted to the regime where the ion gyroradius is small in comparison with the sheet thickness rho(i) << L and wavelength rho(i)kappa(y) << 1. Analytic expressions are derived for the real frequenc y and growth rate. For the limited region of parameter space where two-flui d theory is applicable, the analytic expressions are in excellent agreement with a full Vlasov solution.