Acceleration of charged particles by large amplitude MHD waves: Effect of wave spatial correlation

Yasuhiro Kuramitsu, Tohru Hada

    研究成果: Contribution to journalArticle査読

    25 被引用数 (Scopus)

    抄録

    We discuss energy diffusion and acceleration of charged particles by large amplitude magnetohydrodynamic (MHD) waves by test particle simulations, paying particular attention to the effects of phase correlation of the waves. In quasi-linear theory, the wave phases are assumed to be random, but in reality, interaction between different wave modes may produce phase correlation. When the wave phases are strongly correlated, the waveform appears as spatially localized traveling wave packet. These wave packets can efficiently accelerate charged particles, as they are repeatedly mirror reflected by oppositely propagating wave packets: a process analogous to the Fermi acceleration.

    本文言語英語
    ページ(範囲)629-632
    ページ数4
    ジャーナルGeophysical Research Letters
    27
    5
    DOI
    出版ステータス出版済み - 3 1 2000

    All Science Journal Classification (ASJC) codes

    • 地球物理学
    • 地球惑星科学(全般)

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