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Nonlinear mirror structures in a plasma with thermal pressure anisotropy
- 1.0355909 - ÚFA 2011 RIV US eng C - Conference Paper (international conference)
Kuznetsov, E. A. - Passot, T. - Sulem, P. L. - Hellinger, Petr
Nonlinear mirror structures in a plasma with thermal pressure anisotropy.
PLASMAS IN THE LABORATORY AND IN THE UNIVERSE: INTERACTIONS, PATTERNS, AND TURBULENCE. Melville: American Institute of Physics, 2010 - (Bertin, G.; DeLuca, F.; Lodato, G.; Pozzoli, R.; Rome, M.), s. 164-174. AIP Conference Proceedings, 1242. ISBN 978-0-7354-0787-9. ISSN 0094-243X.
[International Symposium Plasmas in the Laboratory and in the Universe: Interactions, Patterns and Turbulence. Como (IT), 01.12.2009-04.12.2009]
Institutional research plan: CEZ:AV0Z30420517
Keywords : Mirror instability * collapse * subcritical bifurcation * quasilinear relaxation
Subject RIV: BL - Plasma and Gas Discharge Physics
An asymptotic model based on a reductive perturbative expansion of the drift kinetic and the Maxwell equations, is used to demonstrate that, near the instability threshold, the nonlinear dynamics of mirror modes in a magnetized plasma with anisotropic ion temperatures, involves a subcritical bifurcation, leading to the formation of small-scale structures with amplitudes comparable with the ambient magnetic field. The influence of quasilinear effects on the initial stage of formation of mirror structures is discussed.
Permanent Link: http://hdl.handle.net/11104/0194573
Number of the records: 1