Ion acceleration at dipolarization fronts associated with the interchange instability in Earth's magnetotail
文献类型：期刊论文
| 作者 | Lu, HaoYu2; Ge, YaSong1; Sun, Chao2 |
| 刊名 | SCIENCE CHINA-TECHNOLOGICAL SCIENCES
 |
| 出版日期 | 2020-08-11 |
| 页码 | 9 |
| 关键词 | dipolarization fronts interchange instability ion acceleration Hall MHD simulation |
| ISSN号 | 1674-7321 |
| DOI | 10.1007/s11431-019-1505-6 |
| 英文摘要 | It has been confirmed that dipolarization fronts (DFs) are the result of the interchange instability in the Earth's magnetotail. In this paper, we use a Hall MHD model to simulate the evolution of the interchange instability that produces DFs along the leading edge. A test particle simulation is performed to study the physical phenomenon of ion acceleration at the DF. The numerical simulation indicates that almost all particles move earthward and dawnward and then drift to the tail. The DF-reflected ion population at the duskside appears earlier as a consequence of the asymmetric Hall electric field. Ions that are distributed in a dawn-dusk asymmetric semicircle behind the DF tend to be accelerated to higher energies (>13.5 keV). These high-energy particles eventually concentrate in the dawnside. Ions experience effective acceleration by the dawnward electric field, while they drift through the dawn flank at the front, toward the tail. |
| WOS关键词 | STATISTICAL CHARACTERISTICS ; ELECTRON ACCELERATION ; FLOW ; SIMULATION ; RECONNECTION ; EVOLUTION ; EVENT ; SHEET |
| 资助项目 | China's National Space Administration (CNSA)[D020103] ; National Natural Science Foundation of China[41474144] ; National Natural Science Foundation of China[41674176] |
| WOS研究方向 | Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000560406400001 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | China's National Space Administration (CNSA) ; China's National Space Administration (CNSA) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China's National Space Administration (CNSA) ; China's National Space Administration (CNSA) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China's National Space Administration (CNSA) ; China's National Space Administration (CNSA) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China's National Space Administration (CNSA) ; China's National Space Administration (CNSA) ; National Natural Science Foundation of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/97645]  |
| 专题 | 地质与地球物理研究所_中国科学院地球与行星物理重点实验室 |
| 通讯作者 | Lu, HaoYu |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Beihang Univ, Sch Space & Environm, Beijing 100191, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu, HaoYu,Ge, YaSong,Sun, Chao. Ion acceleration at dipolarization fronts associated with the interchange instability in Earth's magnetotail[J]. SCIENCE CHINA-TECHNOLOGICAL SCIENCES,2020:9. |
| APA | Lu, HaoYu,Ge, YaSong,&Sun, Chao.(2020).Ion acceleration at dipolarization fronts associated with the interchange instability in Earth's magnetotail.SCIENCE CHINA-TECHNOLOGICAL SCIENCES,9. |
| MLA | Lu, HaoYu,et al."Ion acceleration at dipolarization fronts associated with the interchange instability in Earth's magnetotail".SCIENCE CHINA-TECHNOLOGICAL SCIENCES (2020):9. |
入库方式： OAI收割
来源：地质与地球物理研究所
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