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Parallel electric fields in nonlinear magnetosonic waves
http://hdl.handle.net/2237/12009
http://hdl.handle.net/2237/12009112117a3-8343-4c35-8c74-62cba2b1490e
名前 / ファイル | ライセンス | アクション |
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PhysPlasmas_14_112305.pdf (726.6 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2009-08-03 | |||||
タイトル | ||||||
タイトル | Parallel electric fields in nonlinear magnetosonic waves | |||||
言語 | en | |||||
著者 |
Takahashi, Seiichi
× Takahashi, Seiichi× Ohsawa, Yukiharu |
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アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
権利 | ||||||
言語 | en | |||||
権利情報 | Copyright (2007) 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 electric field parallel to the magnetic field, E_||, in nonlinear magnetosonic waves is studied theoretically and numerically. In the calculation of E_|| based on the conventional reductive perturbation method, the terms related to the magnetic pressure cancel, and E_|| is proportional to the electron temperature T_e. With a modified perturbation scheme assuming that the wave amplitude is in the range (m_e/m_i)^1/2<ε<1, an expression for E_|| is obtained that is proportional to the magnetic pressure in a cold plasma. Its integral along the magnetic field, F=−∫E_||ds, is proportional to ε^2m_iv^2_A. One-dimensional, fully kinetic, electromagnetic particle simulations verify the theoretical predictions for small-amplitude waves. Further, they demonstrate that eF becomes of the order of ε(m_iv^2_A+Γ_eT_e) in large-amplitude [ε~O(1)] oblique shock waves. These theory and simulations indicate that E_|| in magnetosonic waves can be strong in a strong magnetic field. | |||||
言語 | en | |||||
内容記述タイプ | Abstract | |||||
出版者 | ||||||
言語 | en | |||||
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 | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1063/1.2806344 | |||||
ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 1070-664X | |||||
書誌情報 |
en : PHYSICS OF PLASMAS 巻 14, 号 11, p. 112305-112305, 発行日 2007-11-15 |
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フォーマット | ||||||
application/pdf | ||||||
著者版フラグ | ||||||
値 | publisher | |||||
URI | ||||||
識別子 | http://dx.doi.org/10.1063/1.2806344 | |||||
識別子タイプ | DOI | |||||
URI | ||||||
識別子 | http://hdl.handle.net/2237/12009 | |||||
識別子タイプ | HDL |