Electron trapping around a magnetic null
文献类型：期刊论文
| 作者 | He, J. -S.1; Zong, Q. -G.1,2; Deng, X. -H.3; Tu, C. -Y.1; Xiao, C. -J.4; Wang, X. -G.5; Ma, Z. -W.6; Pu, Z. -Y.1; Lucek, E.7; Pedersen, A.8 |
| 刊名 | GEOPHYSICAL RESEARCH LETTERS
 |
| 出版日期 | 2008-07-29 |
| 卷号 | 35期号:14 |
| 英文摘要 | [1] Magnetic reconnection is an important process in astrophysical, space and laboratory plasmas. The magnetic null pair structure is theoretically suggested to be a crucial feature of the three-dimensional magnetic reconnection. The physics around the null pair, however, has not been explored in combination with the magnetic field configuration deduced from in situ observations. Here, we report the identification of the configuration around a null pair and simultaneous electron dynamics near one null of the pair, observed by four Cluster spacecraft in the geomagnetotail. Further, we propose a new scenario of electron dynamics in the null region, suggesting that electrons are temporarily trapped in the central reconnection region including electron diffusion region resulting in an electron density peak, accelerated possibly by parallel electric field and electron pressure gradient, and reflected from the magnetic cusp mirrors leading to the bi-directional energetic electron beams, which excite the observed high frequency electrostatic waves. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000258149000002 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/7385]  |
| 专题 | 国家天文台_太阳物理研究部 |
| 作者单位 | 1.Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China 2.Univ Massachusetts, Ctr Atmospher Res, Lowell, MA USA 3.Wuhan Univ, Dept Space Phys, Wuhan 430072, Peoples R China 4.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 5.Peking Univ, Sch Phys, Beijing 100871, Peoples R China 6.Zhejiang Univ, Inst Fus Theory & Simulat, Hangzhou 310027, Peoples R China 7.Univ London Imperial Coll Sci Technol & Med, London SW7 2BZ, England 8.Univ Oslo, Dept Phys, N-0316 Oslo, Norway 9.UCL, Mullard Space Sci Lab, Dept Space & Climate Phys, Dorking RH5 6NT, Surrey, England 10.CNRS, CETP, F-78140 Velizy Villacoublay, France |
| 推荐引用方式 GB/T 7714 | He, J. -S.,Zong, Q. -G.,Deng, X. -H.,et al. Electron trapping around a magnetic null[J]. GEOPHYSICAL RESEARCH LETTERS,2008,35(14). |
| APA | He, J. -S..,Zong, Q. -G..,Deng, X. -H..,Tu, C. -Y..,Xiao, C. -J..,...&Escoubet, C. P..(2008).Electron trapping around a magnetic null.GEOPHYSICAL RESEARCH LETTERS,35(14). |
| MLA | He, J. -S.,et al."Electron trapping around a magnetic null".GEOPHYSICAL RESEARCH LETTERS 35.14(2008). |
入库方式： OAI收割
来源：国家天文台
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