Interaction of plasma vortices with resonant particles

D. Jovanovic, Hans Pécseli, J. Juul Rasmussen

    Research output: Contribution to journalJournal articleResearch

    Abstract

    Kinetic effects associated with the electron motion along magnetic field lines in low‐beta plasmas are studied. Using the gyrokinetic description of electrons, a kinetic analog of the reduced magnetohydrodynamic equations is derived, and it is shown that in the strongly nonlinear regime they possess localized solutions in the form of dipolar vortices, which can efficiently interact with resonant electrons. In the adiabatic limit, evolution equations are derived for the vortex parameters, describing exchange of the energy, enstrophy, and of the Poynting vector between the vortex and resonant particles. The evolution equations indicate the possibility of excitation of plasma vortices by electron beams.
    Original languageEnglish
    JournalPhysics of Fluids B: Plasma Physics
    Volume2
    Pages (from-to)2035-2041
    ISSN0899-8221
    DOIs
    Publication statusPublished - 1990

    Fingerprint Dive into the research topics of 'Interaction of plasma vortices with resonant particles'. Together they form a unique fingerprint.

    Cite this