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Persistent acceleration of positrons in a nonstationary shock wave
http://hdl.handle.net/10655/8963
http://hdl.handle.net/10655/89631a76f403-a64e-4eb2-a796-4c8c0063cebc
名前 / ファイル | ライセンス | アクション |
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PhysPlasmas_12_082306.pdf (373.0 kB)
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Item type | 学術雑誌論文 / Journal Article_02(1) | |||||
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公開日 | 2012-11-29 | |||||
タイトル | ||||||
タイトル | Persistent acceleration of positrons in a nonstationary shock wave | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Hasegawa, Hiroki
× Hasegawa, Hiroki× Kato, Ken× Ohsawa, Yukiharu |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Long-time evolution of positrons accelerated in an oblique shock wave in an electron-positron-ion plasma is studied with relativistic, electromagnetic, particle simulations. In the early stage, some positrons move nearly parallel to the external magnetic field in the shock transition region and gain energy from the parallel electric field. The acceleration can become stagnant owing to the deformation of the wave profile. After the recovery of the shock profile, however, the acceleration can start again. By the end of simulation runs, omega_pet=5000, positron Lorentz factors reached values ~2000. In this second stage, three different types of acceleration are found. In the first type, the acceleration process is the same as that in the early stage. In the second type, positrons make gyromotions in the wave frame and gain energy mainly from the perpendicular electric field. In the third type, particle orbits are similar to curtate cycloids. Theoretical estimate for this energy increase is given. | |||||
書誌情報 |
en : Physics of Plasmas 巻 Vol.12, 号 Issue 8, p. pp.082306-1 - 082306-6, 発行日 2005-08-01 |
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出版者 | ||||||
出版者 | American Institute of Physics | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1063/1.2009507 | |||||
権利 | ||||||
権利情報 | (c) 2005 American Institute of Physics | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1063/1.2009507 | |||||
関連名称 | Publisher version | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |