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Parallel electric fields in nonlinear magnetosonic waves in an electron-positron-ion plasma
http://hdl.handle.net/2237/12010
http://hdl.handle.net/2237/12010a7ca0c37-aa56-4c6d-ae14-a96873b7feb1
名前 / ファイル | ライセンス | アクション |
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PhysPlasmas_15_082309.pdf (312.5 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 in an electron-positron-ion plasma | |||||
言語 | en | |||||
著者 |
Takahashi, Seiichi
× Takahashi, Seiichi× Sato, Masatoshi× 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 (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 electric field E_|| along the magnetic field B in nonlinear magnetosonic waves in a three-component plasma is studied with theory based on a three-fluid model and with fully kinetic, electromagnetic, particle simulations. The theory for small-amplitude (epsilon<<1) pulses shows that the integral of E_|| along B, F=−[integral]E_||ds, is proportional to epsilon(pe0−pp0) in warm plasmas, where p_e0 and p_p0 are, respectively, the electron and positron pressures, and proportional to epsilon2miv<sub>A</sub><sup>2</sup>/(1+v<sub>A</sub><sup>2</sup>/c2)3 in cold plasmas, where v_A is the Alfvén speed. These predictions are verified with simulations. Furthermore, for shock waves with epsilon~O(1), simulation values are consistent with the phenomenological relation n_e0eF~epsilon(rhov<sub>A</sub><sup>2</sup>+Gammaepe0)(ni0/ne0), where rho is the mass density and Gamma_e is the specific heat ratio. These results indicate that E_|| can be strong in strong magnetic fields. | |||||
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/10.1063/1.2972159 | |||||
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 15, 号 8, p. 082309-082309, 発行日 2008-08-15 |
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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/10.1063/1.2972159 | |||||
識別子タイプ | DOI | |||||
URI | ||||||
識別子 | http://hdl.handle.net/2237/12010 | |||||
識別子タイプ | HDL |