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Effect of ion composition on ion acceleration by magnetosonic shock waves
http://hdl.handle.net/2237/12029
856e9dba-bf87-4313-93ed-cd4cc08157bf
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 | 2009-08-07 | |||||
タイトル | ||||||
タイトル | Effect of ion composition on ion acceleration by magnetosonic shock waves | |||||
著者 |
Toida, Mieko
× Toida, Mieko× Higashino, Hiroyuki× Ohsawa, Yukiharu |
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権利 | ||||||
権利情報 | Copyright (2008) 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 study of heavy-ion acceleration by magnetosonic shock waves in multi-ion-species plasmas [M. Toida and Y. Ohsawa, Solar Physics 171, 161 (1997)] is extended to the case in which the ion masses are of the same order of magnitude; specifically, the effect of mass and density ratios is examined for H-T and D-T plasmas with three-dimensional, electromagnetic, particle simulations. The frequency difference Δ_ω, where Δ_ω=(ω_+0−ω_−r)/ω_+0 with ω_+0 the cut-off frequency of the high-frequency magnetosonic mode and ω_−r the resonance frequency of the low-frequency mode, is a key parameter in the generation of shock waves from a disturbance. In H-T plasmas with n_H<<n_T and with n_H>>n_T and in D-T plasmas with any density ratio, Δ_ω is small, and the high-frequency-mode shock wave is mainly generated and plays a central role in ion energization processes. In H-T plasmas with n_H=n_T, for which Δω is much greater, both the high- and low-frequency-mode shock waves are generated and contribute to the acceleration. |
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内容記述タイプ | Abstract | |||||
出版者 | ||||||
出版者 | American Institite 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 15, 号 9, p. 092305-092305, 発行日 2008-09-16 |
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application/pdf | ||||||
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値 | publisher | |||||
URI | ||||||
識別子 | http://dx.doi.org/10.1063/1.2977481 | |||||
識別子タイプ | DOI | |||||
URI | ||||||
識別子 | http://hdl.handle.net/2237/12029 | |||||
識別子タイプ | HDL |