Slow magnetosonic waves detected in reconnection diffusion region in the Earth's magnetotail
文献类型：期刊论文
| 作者 | Cao, J. B.1; Wei, X. H.2; Duan, A. Y.2; Fu, H. S.1; Zhang, T. L.3,4; Reme, H.5,6; Dandouras, I.5,6 |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
 |
| 出版日期 | 2013-04-01 |
| 卷号 | 118期号:4页码:1659-1666 |
| ISSN号 | 2169-9402 |
| 关键词 | Slow magnetosonic waves Periodic reconnection Ion diffusion region Tailward ion flow Hall effect whistler waves |
| 通讯作者 | 北京8701信箱 |
| 中文摘要 | We studied the ULF waves with a period of 30 s in the ion diffusion region of reconnection observed by Cluster satellites on 21 August 2002. The fast convective tailward ion flow accompanied with a large southward magnetic field component, a strong Hall magnetic field, and a Hall electric field demonstrates that the Cluster satellites are located in the ion diffusion region of reconnection. The analyses of wave properties using minimum variance analysis and timing method indicate that this wave is an obliquely propagating slow magnetosonic wave which is characterized by the anti phase relation between the magnitude of the magnetic field and the ion number density and by a propagation angle of around 130° with respect to the ambient magnetic field. This wave is generated by periodic magnetic reconnection. The periodic oscillations in the By and Bx components are driven by the periodic Hall current system, while the oscillation in the Bz component is driven by quasiperiodic convective tailward ion flows. The slow magnetosonic wave significantly influences the frequency of whistler waves and low hybrid waves excited by magnetic reconnection by changing the magnitude of the local magnetic field and subsequently the electron cyclotron frequency. |
| 英文摘要 | We studied the ULF waves with a period of 30s in the ion diffusion region of reconnection observed by Cluster satellites on 21 August 2002. The fast convective tailward ion flow accompanied with a large southward magnetic field component, a strong Hall magnetic field, and a Hall electric field demonstrates that the Cluster satellites are located in the ion diffusion region of reconnection. The analyses of wave properties using minimum variance analysis and timing method indicate that this wave is an obliquely propagating slow magnetosonic wave which is characterized by the anti phase relation between the magnitude of the magnetic field and the ion number density and by a propagation angle of around 130 degrees with respect to the ambient magnetic field. This wave is generated by periodic magnetic reconnection. The periodic oscillations in the By and Bx components are driven by the periodic Hall current system, while the oscillation in the Bz component is driven by quasiperiodic convective tailward ion flows. The slow magnetosonic wave significantly influences the frequency of whistler waves and low hybrid waves excited by magnetic reconnection by changing the magnitude of the local magnetic field and subsequently the electron cyclotron frequency. |
| 学科主题 | 空间物理 |
| 语种 | 英语 |
| 源URL | [http://ir.cssar.ac.cn/handle/122/1532]  |
| 专题 | 国家空间科学中心_空间科学部 |
| 作者单位 | 1.Beihang Univ, Sch Astronaut, Space Sci Inst, Beijing 100191, Peoples R China 2.Chinese Acad Sci, CSSAR, State Key Lab Space Weather, Beijing, Peoples R China 3.Univ Sci & Technol China, CAS Key Lab Geospace Environm, Hefei 230026, Peoples R China 4.Austrian Acad Sci, Space Res Inst, A-8010 Graz, Austria 5.CNRS, Inst Rech Astrophys & Planetol, Toulouse, France 6.Univ Toulouse, UPS, IRAP, Toulouse, France |
| 推荐引用方式 GB/T 7714 | Cao, J. B.,Wei, X. H.,Duan, A. Y.,et al. Slow magnetosonic waves detected in reconnection diffusion region in the Earth's magnetotail[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2013,118(4):1659-1666. |
| APA | Cao, J. B..,Wei, X. H..,Duan, A. Y..,Fu, H. S..,Zhang, T. L..,...&Dandouras, I..(2013).Slow magnetosonic waves detected in reconnection diffusion region in the Earth's magnetotail.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,118(4),1659-1666. |
| MLA | Cao, J. B.,et al."Slow magnetosonic waves detected in reconnection diffusion region in the Earth's magnetotail".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 118.4(2013):1659-1666. |
入库方式： OAI收割
来源：国家空间科学中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。