The ionospheric up-flowing He+ ion distribution in the magnetosphere
文献类型：期刊论文
| 作者 | Shi, J. K. ; Guo, J. G. ; Torkar, K. ; Liu, Z. X. |
| 刊名 | Journal of Atmospheric and Solar-Terrestrial Physics
 |
| 出版日期 | 2009 |
| 卷号 | 71期号:16页码:1630-1635 |
| 关键词 | Ionosphere Up-flowing He+ ions Inner magnetosphere Distribution satellite-observations acceleration magnetotail mechanism plasma model |
| ISSN号 | 1364-6826 |
| 通讯作者 | 北京8701信箱 |
| 英文摘要 | Based on ion distribution function found from the dynamic equation, the density distribution of He+ ions originating from the polar ionosphere and up-flowing along the magnetic field line is studied during quiet and weakly disturbed geomagnetic conditions, The results show the following. (1) The ionospheric up-flowing He+ ions mainly reside in the inner magnetosphere and their density has a negative radial gradient. (2) The ionospheric up-flowing He+ ion distributions along the magnetic field line are mainly controlled by gravity and the geomagnetic field configuration. Larger the gravity, larger is the ion density. Smaller the intensity of magnetic field, smaller is the ion density. (3) If the geomagnetic activity index K-p is high, more up-flowing He+ ions will enter the magnetosphere and the region where the up-flowing ions are dominant will grow. This is consistent with observations of ionospheric up-flowing ions. Some features of the geopause can be understood based on our theoretical results. |
| 学科主题 | 空间物理 |
| 收录类别 | SCI |
| 原文出处 | http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6VHB-4THC1J3-1-9&_cdi=6062&_user=1999492&_orig=search&_coverDate=11%2F30%2F2009&_sk=999289983&view=c&wchp=dGLbVzW-zSkzS&md5=3b2f0efd2eb8c6f7631e4cb133ab6a61&ie=/sdarticle.pdf |
| 语种 | 英语 |
| 源URL | [http://ir.cssar.ac.cn/handle/122/1131]  |
| 专题 | 国家空间科学中心_空间科学部 |
| 推荐引用方式 GB/T 7714 | Shi, J. K.,Guo, J. G.,Torkar, K.,et al. The ionospheric up-flowing He+ ion distribution in the magnetosphere[J]. Journal of Atmospheric and Solar-Terrestrial Physics,2009,71(16):1630-1635. |
| APA | Shi, J. K.,Guo, J. G.,Torkar, K.,&Liu, Z. X..(2009).The ionospheric up-flowing He+ ion distribution in the magnetosphere.Journal of Atmospheric and Solar-Terrestrial Physics,71(16),1630-1635. |
| MLA | Shi, J. K.,et al."The ionospheric up-flowing He+ ion distribution in the magnetosphere".Journal of Atmospheric and Solar-Terrestrial Physics 71.16(2009):1630-1635. |
入库方式： OAI收割
来源：国家空间科学中心
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