Magnetic fields in the Mars ionosphere of a noncrustal origin: Magnetization features
文献类型：期刊论文
| 作者 | Dubinin, E.1; Fraenz, M.1; Zhang, T. L.2; Woch, J.1; Wei, Y.3 |
| 刊名 | GEOPHYSICAL RESEARCH LETTERS
 |
| 出版日期 | 2014-09-28 |
| 卷号 | 41期号:18页码:6329-6334 |
| ISSN号 | 0094-8276 |
| DOI | 10.1002/2014GL061453 |
| 文献子类 | Article |
| 英文摘要 | The magnetic field observations by the Mars Global Surveyor (MGS) performed on the premapping orbits in the years 1997 and 1998 in the low-altitude ionosphere of Mars show the existence of a strong "external" magnetization not related to the "internal" crustal magnetization. A significant increase of the magnetic field strength is observed in the collisional northern ionosphere at altitudes of similar to 200 km and at 60 degrees-90 degrees solar zenith angles sampled by MGS. The magnetization features and the magnetic field topology vary significantly with the sector structure of the interplanetary magnetic field (IMF). For B-yIMF > 0 the magnetic flux tubes transported to altitudes of similar to 200 km are suddenly straightened releasing their tangential stresses. For B-yIMF < 0 a rotation of the magnetic field vector by almost 180. occurs. Such an asymmetry in the ionospheric response on Mars is similar to the asymmetry observed on Venus at the periods of low-solar activity indicating its universal origin for magnetized ionospheres. It is suggested that the electric currents generated in the collisional ionosphere where the ions become demagnetized, while the electrons remain magnetized produce the observed features. |
| WOS关键词 | VENUS IONOSPHERE ; SOLAR-WIND ; MODEL ; EVOLUTION |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000344913700004 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 资助机构 | German Aerospace Agency (DLR)(50QM0801) ; German Aerospace Agency (DLR)(50QM0801) ; German Science Foundation (DFG)(WO910/3-1) ; German Science Foundation (DFG)(WO910/3-1) ; German Aerospace Agency (DLR)(50QM0801) ; German Aerospace Agency (DLR)(50QM0801) ; German Science Foundation (DFG)(WO910/3-1) ; German Science Foundation (DFG)(WO910/3-1) ; German Aerospace Agency (DLR)(50QM0801) ; German Aerospace Agency (DLR)(50QM0801) ; German Science Foundation (DFG)(WO910/3-1) ; German Science Foundation (DFG)(WO910/3-1) ; German Aerospace Agency (DLR)(50QM0801) ; German Aerospace Agency (DLR)(50QM0801) ; German Science Foundation (DFG)(WO910/3-1) ; German Science Foundation (DFG)(WO910/3-1) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/85325]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Dubinin, E. |
| 作者单位 | 1.Max Planck Inst Solar Syst Res, Gottingen, Germany 2.Austrian Acad Sci, Space Res Inst, A-8010 Graz, Austria 3.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dubinin, E.,Fraenz, M.,Zhang, T. L.,et al. Magnetic fields in the Mars ionosphere of a noncrustal origin: Magnetization features[J]. GEOPHYSICAL RESEARCH LETTERS,2014,41(18):6329-6334. |
| APA | Dubinin, E.,Fraenz, M.,Zhang, T. L.,Woch, J.,&Wei, Y..(2014).Magnetic fields in the Mars ionosphere of a noncrustal origin: Magnetization features.GEOPHYSICAL RESEARCH LETTERS,41(18),6329-6334. |
| MLA | Dubinin, E.,et al."Magnetic fields in the Mars ionosphere of a noncrustal origin: Magnetization features".GEOPHYSICAL RESEARCH LETTERS 41.18(2014):6329-6334. |
入库方式： OAI收割
来源：地质与地球物理研究所
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