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Numerical studies on ultrarelativistic ion motions in an oblique magnetosonic shock wave
http://hdl.handle.net/2237/14203
f82b808e-5786-4929-9f89-8e11d18b1868
名前 / ファイル | ライセンス | アクション | |
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2010-10-14 | |||||
タイトル | ||||||
タイトル | Numerical studies on ultrarelativistic ion motions in an oblique magnetosonic shock wave | |||||
著者 |
Usami, Shunsuke
× Usami, Shunsuke× Horiuchi, Ritoku× Ohsawa, Yukiharu |
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権利 | ||||||
権利情報 | Copyright (2009) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. | |||||
抄録 | ||||||
内容記述 | The motion of ultrarelativistic ions in an oblique magnetosonic shock wave is studied analytically and numerically. The zeroth-order theory predicts that an oblique shock wave can accelerate ions in the direction nearly parallel to the magnetic field if the shock speed is vsh ∼ c cos θ, where θ is the angle between the wave normal and the magnetic field, while the perturbation is a one-dimensional oscillation nearly perpendicular to the zeroth-order motion. The perturbation frequency ω is of the order of Ωi0γ^−1/2, where γ is the Lorentz factor of the zeroth-order velocity. These theoretical predictions are examined with test particle simulations, in which the test particle orbits are calculated with use of the electromagnetic fields of a shock wave obtained from an electromagnetic particle simulation. The zeroth-order and perturbed motions in the simulations are explained by the theory. | |||||
内容記述タイプ | Abstract | |||||
出版者 | ||||||
出版者 | American Institute of Physics | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1070-664X | |||||
書誌情報 |
PHYSICS OF PLASMAS 巻 16, 号 12, p. 122104-122104, 発行日 2009-12 |
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値 | publisher | |||||
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識別子 | http://hdl.handle.net/2237/14203 | |||||
識別子タイプ | HDL | |||||
URI | ||||||
識別子 | http://dx.doi.org/10.1063/1.3270110 | |||||
識別子タイプ | DOI |