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Influence of a Guide Field on Collisionless Driven Reconnection
http://hdl.handle.net/10655/11338
http://hdl.handle.net/10655/11338e9d1a06b-47a8-465f-bea0-96c4a75942f9
名前 / ファイル | ライセンス | アクション |
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pfr2014_09-1401092.pdf (2.6 MB)
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Item type | 学術雑誌論文 / Journal Article_02(1) | |||||
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公開日 | 2015-03-27 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Influence of a Guide Field on Collisionless Driven Reconnection | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | guide field | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | collisionless driven reconnection | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | meandering effect | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | energy conversion process | |||||
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 |
HORIUCHI, Ritoku
× HORIUCHI, Ritoku× USAMI, Shunsuke× OHTANI, Hiroaki |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The influence of a guide field on collisionless driven reconnection is investigated by means of two-dimensional electromagnetic particle simulation in an open system. In a quasi-steady state when reconnection electric field evolves fully, a current layer evolves locally in a narrow kinetic region and its scale decreases in proportion to an electron meandering scale as the guide field is intensified. Here, the meandering scale stands for an average spatial scale of nongyrotropic motions in the vicinity of the reconnection point. Force terms associated with off-diagonal components of electron and ion pressure tensors, which are originating from nongyrotropic motions of charged particles, becomes dominant at the reconnection point and sustain the reconnection electric field even when the guide field is strong. It is also found that thermalization of both ions and electrons is suppressed by the guide field. For the weak guide field, an electron nonthermal component is significantly created through a fast outburst from the kinetic region, while for the strong guide field, an ion nonthermal component is generated through the acceleration by an in-plane electric field near the magnetic separatrix. | |||||
書誌情報 |
en : Plasma and Fusion Research 巻 Vol.9, p. 1401092-1, 発行日 2014-07-01 |
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出版者 | ||||||
出版者 | プラズマ・核融合学会 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1585/pfr.9.1401092 | |||||
権利 | ||||||
権利情報 | ?2014 The Japan Society of Plasma Science and Nuclear Fusion Research |