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Magnetosheath fluctuations at Venus for two extreme orientations of the interplanetary magnetic field
Du J(杜艰); Zhang, T. L.; Wang C(王赤); Volwerk, M.; Delva, M.; Baumjohann, W.; 北京8701信箱
Department空间天气学国家重点实验室
Source PublicationGeophysical Research Letters
2009
Volume36Pages:L09102
ISSN0094-8276
Language英语
KeywordExpress Waves Plasma Barrier
AbstractUsing the magnetosheath crossings of Venus Express on two consecutive days, we investigate magnetic fluctuations in the same locations for two extreme interplanetary magnetic field orientations, i.e., nearly along and nearly perpendicular to the solar wind flow. It is shown that the properties of the fluctuations are drastically different at basically the same location of the spacecraft in the magnetosheath. The strength and properties of the fluctuations are strongly controlled by the types of the upstream bow shock. The magnetic fluctuations behind a quasi-parallel bow shock are quite strong and turbulent, having a strongly variable angle alpha(eB) between maximum variance direction of the fluctuations and the direction of the magnetic field, which may be convected from the upstream waves in the foreshock. The magnetic fluctuations behind a quasi-perpendicular bow shock are less intensive and wave-like, showing a less perturbed angle alpha(eB), which are probably generated locally.
Indexed BySCI
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/975
Collection空间科学部
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
Du J,Zhang, T. L.,Wang C,et al. Magnetosheath fluctuations at Venus for two extreme orientations of the interplanetary magnetic field[J]. Geophysical Research Letters,2009,36:L09102.
APA 杜艰.,Zhang, T. L..,王赤.,Volwerk, M..,Delva, M..,...&北京8701信箱.(2009).Magnetosheath fluctuations at Venus for two extreme orientations of the interplanetary magnetic field.Geophysical Research Letters,36,L09102.
MLA 杜艰,et al."Magnetosheath fluctuations at Venus for two extreme orientations of the interplanetary magnetic field".Geophysical Research Letters 36(2009):L09102.
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