Počet záznamů: 1

Nonlinear mirror structures in a plasma with thermal pressure anisotropy

  1. 1.
    0355909 - UFA-U 2011 RIV US eng C - Konferenční příspěvek (zahraniční konf.)
    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]
    Výzkumný záměr: CEZ:AV0Z30420517
    Klíčová slova: Mirror instability * collapse * subcritical bifurcation * quasilinear relaxation
    Kód oboru RIV: BL - Fyzika plazmatu a výboje v plynech

    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.
    Trvalý link: http://hdl.handle.net/11104/0194573