Ion-neutral collision effect on an Alfvén wave

Yoshimitsu Amagishi, Masayoshi Tanaka

    研究成果: ジャーナルへの寄稿学術誌査読

    22 被引用数 (Scopus)

    抄録

    This paper reports that ion-neutral collisions in a magnetized plasma cause a drastic change in the dispersion relation of the shear Alfvén wave with poloidal mode number m=0, connecting to the branch of the m=+1 compressional Alfvén wave at frequencies below the ion-cyclotron frequency. An anomaly of the dispersion then appears on the refractive index curve and a wave packet in this frequency range undergoes strong amplitude damping and profile deformation. It is confirmed that the Kramers-Kronig relation holds for the dielectric function, estimated from both the measured refractive index and damping rate.

    本文言語英語
    ページ(範囲)360-363
    ページ数4
    ジャーナルPhysical review letters
    71
    3
    DOI
    出版ステータス出版済み - 1993

    !!!All Science Journal Classification (ASJC) codes

    • 物理学および天文学(全般)

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