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Coincidence of heliospheric current sheet and stream interface: Implications for the origin and evolution of the solar wind
Huang, Jia; Liu, Yong C. -M.; Klecker, Berndt; Chen, Yao; Liu, YCM (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab SpaceWeather, Beijing, Peoples R China.
Department空间科学部
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
2016
Volume121Issue:1Pages:19-29
ISSN2169-9380
Language英语
KeywordHeliospheric Current Sheet Stream Interface Coincidence True Sector Boundary Pseudostreamer Interchange Reconnection
AbstractIn general, the heliospheric current sheet (HCS), which defines the boundary of sunward and antisunward magnetic field, is encased by the slow solar wind. The stream interface (SI) represents the boundary between the solar wind plasmas of different origin and/or characteristics. According to earlier studies using data of low time resolution, the SI and HCS get closer further away from the Sun, and the two structures coincide with each other around 5AU. In this study, we use STEREO data of a much higher time resolution to reveal an unusual case where the SI and HCS are coincident near 1AU and separated from the so-called true sector boundary (TSB) at which the suprathermal electrons change their relative propagation directions. Preliminary analysis suggests that the closed loops in pseudostreamers continually have interchange reconnection with the open-field lines that lead them, resulting not only in the coincidence of HCS and SI but also in the separation of the TSB from the HCS/SI. We therefore conclude that the interchange reconnection plays an important role in the evolution of slow solar wind.
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/5286
Collection空间科学部
Corresponding AuthorLiu, YCM (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab SpaceWeather, Beijing, Peoples R China.
Recommended Citation
GB/T 7714
Huang, Jia,Liu, Yong C. -M.,Klecker, Berndt,et al. Coincidence of heliospheric current sheet and stream interface: Implications for the origin and evolution of the solar wind[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2016,121(1):19-29.
APA Huang, Jia,Liu, Yong C. -M.,Klecker, Berndt,Chen, Yao,&Liu, YCM .(2016).Coincidence of heliospheric current sheet and stream interface: Implications for the origin and evolution of the solar wind.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,121(1),19-29.
MLA Huang, Jia,et al."Coincidence of heliospheric current sheet and stream interface: Implications for the origin and evolution of the solar wind".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 121.1(2016):19-29.
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