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Discussion on the Identification of Magnetic Cloud Boundaries Using Cloud Natural Coordinate System
Hengqiang Feng1; Dejin Wu1; Jikun Zhao2
2007
Source PublicationChinese Astronomy and Astrophysics
ISSN0275-1062
Volume31Issue:2Pages:146
AbstractMagnetic clouds (MCs) belong to an important subset of interplanetary coronal mass ejections. The identification of their boundaries is always a problem in the studies of MCs. This paper discusses a method to identify the boundaries of MCs by coordinate transformation. Instead of the conventional GSE (Geocentric Solar Ecliptic) coordinate system, the interplanetary magnetic field data are converted into a cloud natural coordinate system, in which the profile of the MC as a magnetic flux tube is clearly displayed. Then, combining with the plasma properties of the MC, the boundary of the cloud can be identified easily. Six observed MCs are analyzed using this method, and the results show that this method is feasible and can reduce the uncertainty in the identification of MC boundaries.
Language英语
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/31293
Collection中国科学院紫金山天文台
Affiliation1.中国科学院紫金山天文台
2.国立中央大学
First Author Affilication中国科学院紫金山天文台
Recommended Citation
GB/T 7714
Hengqiang Feng,Dejin Wu,Jikun Zhao. Discussion on the Identification of Magnetic Cloud Boundaries Using Cloud Natural Coordinate System[J]. Chinese Astronomy and Astrophysics,2007,31(2):146.
APA Hengqiang Feng,Dejin Wu,&Jikun Zhao.(2007).Discussion on the Identification of Magnetic Cloud Boundaries Using Cloud Natural Coordinate System.Chinese Astronomy and Astrophysics,31(2),146.
MLA Hengqiang Feng,et al."Discussion on the Identification of Magnetic Cloud Boundaries Using Cloud Natural Coordinate System".Chinese Astronomy and Astrophysics 31.2(2007):146.
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