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Observations on a Series of Merging Magnetic Flux Ropes Within an Interplanetary Coronal Mass Ejection
Feng, Hengqiang1,2; Zhao, Yan1,2; Zhao, Guoqing1,2; Liu, Qiang1,2; Wu, Dejin3
2019-01-16
Source PublicationGEOPHYSICAL RESEARCH LETTERS
ISSN0094-8276
Volume46Issue:1Pages:5-10
Corresponding AuthorFeng, Hengqiang(fenghq9921@163.com)
AbstractCoronal mass ejections (CMEs) are intense solar explosive eruptions. CMEs are highly important players in solar-terrestrial relationships, and they have important consequences for major geomagnetic storms and energetic particle events. It has been unclear how CMEs evolve when they propagate in the heliosphere. Here we report an interplanetary CME consisting of multiple magnetic flux ropes measured by WIND on 25-26 March 1998. These magnetic flux ropes were merging with each other. The observations indicate that internal interactions (reconnections) within multiflux rope CME can coalesce into large-scale ropes, which may improve our understanding of the interplanetary evolution of CMEs. In addition, we speculated that the reported rope-rope interactions may also exist between successive rope-like CMEs and are important for the space weather forecasting. Plain Language Summary Coronal mass ejections (CMEs), most of which have rope structures, are an important cause of extreme space weather. Therefore, it is important to understand how CMEs evolve when they propagate in the heliosphere. We report an interplanetary coronal mass ejection consisting of three magnetic flux ropes. The three magnetic flux ropes were merging with each other. The observations provide definite understanding of CME evolution and have important implications for space weather forecasting.
Keywordinterplanetary coronal mass ejection magnetic flux rope merging of flux ropes magnetic reconnection
DOI10.1029/2018GL080063
WOS KeywordCLOUD EROSION ; POLYTROPIC INDEX ; SOLAR-WIND ; RECONNECTION ; MAGNETOPAUSE ; SIMULATION ; SPACECRAFT ; SIGNATURES ; PLASMA ; STORMS
Indexed BySCI
Language英语
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000456938600001
PublisherAMER GEOPHYSICAL UNION
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Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/20006
Collection中国科学院紫金山天文台
Corresponding AuthorFeng, Hengqiang
Affiliation1.Luoyang Normal Univ, Inst Space Phys, Luoyang, Peoples R China
2.Henan Key Lab Electromagnet Transformat & Detect, Luoyang, Peoples R China
3.Chinese Acad Sci, Purple Mt Observ, Key Lab Planetary Sci, Nanjing, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Feng, Hengqiang,Zhao, Yan,Zhao, Guoqing,et al. Observations on a Series of Merging Magnetic Flux Ropes Within an Interplanetary Coronal Mass Ejection[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(1):5-10.
APA Feng, Hengqiang,Zhao, Yan,Zhao, Guoqing,Liu, Qiang,&Wu, Dejin.(2019).Observations on a Series of Merging Magnetic Flux Ropes Within an Interplanetary Coronal Mass Ejection.GEOPHYSICAL RESEARCH LETTERS,46(1),5-10.
MLA Feng, Hengqiang,et al."Observations on a Series of Merging Magnetic Flux Ropes Within an Interplanetary Coronal Mass Ejection".GEOPHYSICAL RESEARCH LETTERS 46.1(2019):5-10.
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