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Eruption of an active-region filament driven by an emerging bipole
Jiang YC(姜云春)1; Shen YD(申远灯)1; Wang, JX2; Jiang, YC (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
Source PublicationCHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
2007
Volume7Issue:1Pages:129-140
DOI10.1088/1009-9271/7/1/10
Contribution Rank第1完成单位
Indexed BySCI
KeywordSun : Filaments Sun : Flares Sun : Magnetic Fields Sun : Corona Sun : X-rays
AbstractA section of an S-shaped filament underwent an eruption in a sigmoidal active region (AR 8027) with S-shaped coronal structure, which was clearly driven by a bipole emerging below the NW end of the filament. The bipole with two separating poles showed typical characteristics of emerging flux region (EFR) and its axis rotated counterclockwise. Two cancelling magnetic features (CMFs) were formed between the two poles and adjacent flux with opposite polarity and substantial flux cancellation occurred in them. Along with the bipole emergence the filament was strongly disturbed. Just before the filament eruption, two X-ray loops overlying the filament brightened, an axial X-ray structure and then a cusp structure appeared. During the eruption first the whole filament rose and then its SE end broke away from the chromosphere, while its NW end remained stationary. Helical structure and motion were observed in the filament body and downward mass motion in the two ends. After the eruption, a major part of the filament remained and slowly returned to quiescence, and an X-ray arcade and an axial structure formed. These observations suggest that the eruption resulted from the interaction between the bipole and the overlying loops. We provide evidence that steady photospheric reconnection between their footprints took place in the two CMFs during the bipole emergence.
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN1009-9271
URL查看原文
Archive Date2007-06-01
WOS IDWOS:000244675200010
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordCORONAL MASS EJECTIONS ; X-RAY TELESCOPE ; MAGNETIC CHANGES ; FIELD CHANGES ; FLARE ; DISAPPEARANCE ; FLUX ; ACTIVATION ; PATTERNS ; MISSION
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Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6111
Collection太阳物理研究组
Corresponding AuthorJiang, YC (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
Affiliation1.National Astronomical Observatories / Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011
2.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Jiang YC,Shen YD,Wang, JX,et al. Eruption of an active-region filament driven by an emerging bipole[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2007,7(1):129-140.
APA Jiang YC,Shen YD,Wang, JX,&Jiang, YC .(2007).Eruption of an active-region filament driven by an emerging bipole.CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,7(1),129-140.
MLA Jiang YC,et al."Eruption of an active-region filament driven by an emerging bipole".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 7.1(2007):129-140.
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