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Solar wind entry via flux tube into magnetosphere observed by Cluster measurements at dayside magnetopause during southward IMF
Yan, G. Q.; Liu, Z. X.; Shen, C.; Dunlop, M.; Balogh, A.; Reme, H.; Bogdanova, Y. V.; Fazakerley, A.; 北京8701信箱
Department空间天气学国家重点实验室
Source PublicationScience in China Series E-Technological Sciences
2009
Volume52Issue:7Pages:2104-2111
ISSN1006-9321
Language英语
KeywordTransport Process Magnetic Reconnection Solar Wind-magnetosphere Interactions Interplanetary Magnetic-field Explorer 12 Observations latitude Boundary-layer Earths Magnetosphere Geomagnetic Storms Plasma Reconnection Signatures Transport Cusp
AbstractBy analyzing hot ion and electron parameters together with magnetic field measurements from Cluster, an event of magnetopause crossing of the spacecraft has been investigated. At the latitude of about 40A degrees and magnetic local time (MLT) of 13:20 during the southward interplanetary magnetic field (IMF), a transition layer was observed, with the magnetospheric field configuration and cold dense plasma features of the magnetosheath. The particle energy-time spectrograms inside the layer were similar to but still a little different from those in the magnetosheath, obviously indicating the solar wind entry into the magnetosphere. The direction and magnitude of the accelerated ion flow implied that reconnection might possibly cause such a solar wind entry phenomenon. The bipolar signature of the normal magnetic component B (N) in magnetopause coordinates further supported happening of reconnection there. The solar wind plasma flowed toward the magnetopause and entered the magnetosphere along the reconnected flux tube. The magnetospheric branch of the reconnected flux tube was still inside the magnetosphere after reconnection and supplied the path for the solar wind entry into the dayside magnetosphere. The case analysis gives observational evidence and more details of how the reconnection process at the dayside low latitude magnetopause caused the solar wind entry into the magnetosphere.
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/122/1140
Collection空间科学部
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
Yan, G. Q.,Liu, Z. X.,Shen, C.,et al. Solar wind entry via flux tube into magnetosphere observed by Cluster measurements at dayside magnetopause during southward IMF[J]. Science in China Series E-Technological Sciences,2009,52(7):2104-2111.
APA Yan, G. Q..,Liu, Z. X..,Shen, C..,Dunlop, M..,Balogh, A..,...&北京8701信箱.(2009).Solar wind entry via flux tube into magnetosphere observed by Cluster measurements at dayside magnetopause during southward IMF.Science in China Series E-Technological Sciences,52(7),2104-2111.
MLA Yan, G. Q.,et al."Solar wind entry via flux tube into magnetosphere observed by Cluster measurements at dayside magnetopause during southward IMF".Science in China Series E-Technological Sciences 52.7(2009):2104-2111.
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