The Dependence of Particle Acceleration on Initial Locations in Reconnecting Current Sheets
文献类型：期刊论文
| 作者 | Li Y(李燕)1,2 ; Winter, HD3; Murphy, NA3; Lin J(林隽)1,3; Ning, W4
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| 刊名 | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
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| 出版日期 | 2013-10-25 |
| 卷号 | 65期号:5 |
| 关键词 | Sun: flares Sun: magnetic reconnection Sun: particle acceleration |
| ISSN号 | 0004-6264 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Yan, L (reprint author), Chinese Acad Sci, Yunnan Astron Observ, Kunming 650011, Peoples R China. |
| 英文摘要 | Electron and proton acceleration by a super-Dreicer electric field is investigated in a reconnecting current sheet in the presence of a guide field. The electric field is assumed to vary in space. Electrons and protons are accelerated from initial positions randomly distributed over the whole acceleration region. The stability of the energy spectrum is investigated using different numbers of test particles. The energy spectrum eventually obtained is consistent with a power-law spectrum. The spectral index of electrons increases rapidly with increasing guide field, but the index for the protons does not vary significantly. The relation of the final energy to the initial position is also studied. The results indicate that the addition of a guide field not only allows the reconnecting electric field to selectively accelerate electrons and protons from different initial positions, but also increases the number of accelerated electrons and reduces the number of protons. The final position and the pitch angles of the accelerated particles are also investigated. Finally, we also calculate the energy spectrum of particles initially distributed at the boundary of the reconnection inflow. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | SOLAR-FLARES ; PROTON ACCELERATION ; MAGNETIC-FIELD ; ELECTRON ACCELERATION ; ENERGY-SPECTRA ; ATMOSPHERE ; MODEL |
| 收录类别 | SCI |
| 原文出处 | http://pasj.oxfordjournals.org/content/65/5/101 |
| 语种 | 英语 |
| WOS记录号 | WOS:000328300300010 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/6218]  |
| 专题 | 云南天文台_太阳物理研究组 |
| 作者单位 | 1.Yunnan Astronomical Observatory, Chinese Academy of Sciences, Kunming 650011, China 2.Graduate University of Chinese Academy of Sciences, Beijing 100039, China 3.Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA 4.School of Tourism and Geography, Yunnan Normal University, Kunming 650031, China |
| 推荐引用方式 GB/T 7714 | Li Y,Winter, HD,Murphy, NA,et al. The Dependence of Particle Acceleration on Initial Locations in Reconnecting Current Sheets[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2013,65(5). |
| APA | Li Y,Winter, HD,Murphy, NA,Lin J,&Ning, W.(2013).The Dependence of Particle Acceleration on Initial Locations in Reconnecting Current Sheets.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,65(5). |
| MLA | Li Y,et al."The Dependence of Particle Acceleration on Initial Locations in Reconnecting Current Sheets".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 65.5(2013). |
入库方式： OAI收割
来源：云南天文台
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