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Simulation studies of positron acceleration by a shock wave
http://hdl.handle.net/2237/10301
http://hdl.handle.net/2237/1030156bef7bf-b3ca-4013-ba0d-b385475357c8
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 | 2008-07-30 | |||||
タイトル | ||||||
タイトル | Simulation studies of positron acceleration by a shock wave | |||||
言語 | en | |||||
著者 |
OHSAWA, YUKIHARU
× OHSAWA, YUKIHARU× KATO, K.× HASEGAWA, H. |
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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 | Cambridge University Press | |||||
抄録 | ||||||
内容記述 | Using a relativistic electromagnetic particle code, we investigate positron acceleration in a shock wave propagating obliquely to an external magnetic field B0 in an electron-positron-ion plasma. After an encounter with a shock wave, some positrons are reflected and then accelerated along the magnetic field. They stay in the shock transition region and have velocities nearly parallel to B0. Owing to the deformation of the wave profile, the acceleration can become stagnant. However, if the shock speed υ_sh is close to c cosθ, where c is the speed of light and θ is the angle between the wave normal and B0, the acceleration can start again. In this second stage acceleration, three types of motion are found. The first type is the same as that in the first stage. In the second type, particles gain energy from the electric field perpendicular to the magnetic field in association with large-radius gyromotion. The third type of motion resembles the curtate cycloid in the wave frame. We give theoretical estimates for the energy increase in these processes. | |||||
言語 | en | |||||
内容記述タイプ | Abstract | |||||
出版者 | ||||||
言語 | en | |||||
出版者 | Cambridge University Press | |||||
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/10.1017/S0022377806005307 | |||||
ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0022-3778 | |||||
書誌情報 |
en : Journal of Plasma Physics 巻 72, 号 6, p. 919-923, 発行日 2006-12 |
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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://hdl.handle.net/2237/10301 | |||||
識別子タイプ | HDL |