Electromagnetic cyclotron instabilities in bi-Kappa distributed plasmas : a quasilinear approach

Lazar, M. and Yoon, P.H. and Eliasson, B. (2017) Electromagnetic cyclotron instabilities in bi-Kappa distributed plasmas : a quasilinear approach. Physics of Plasmas, 24 (4). 042110. ISSN 1070-664X (https://doi.org/10.1063/1.4979903)

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Abstract

Anisotropic bi-Kappa distributed plasmas, as encountered in the solar wind and planetary magnetospheres,are susceptible to a variety of kinetic instabilities including the cyclotron instabilities driven by an excess ofperpendicular temperature T⊥ > T∥ (where ∥, ⊥ denote directions relative to the mean magnetic field). Theseinstabilities have been extensively investigated in the past, mainly limiting to a linear stability analysis. Abouttheir quasilinear (weakly nonlinear) development some insights have been revealed by numerical simulationsusing PIC and Vlasov solvers. This paper presents a self-consistent analytical approach, which provides forboth the electron and proton cyclotron instabilities an extended picture of the quasilinear time evolution ofthe anisotropic temperatures as well as the wave energy densities.

  • Item type:Article
    ID code:60420
    Dates:
    Date
    Event
    10 April 2017
    Published
    22 March 2017
    Accepted
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:11 Apr 2017 09:35
    Last modified:09 Apr 2024 08:28
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/60420
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