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Prominence eruptions and coronal mass ejections triggered by newly emerging flux
Lin J(林隽); Forbes, TG; Isenberg, PA; Lin, J (reprint author), Univ New Hampshire, Inst Study Earth Ocean & Space, Morse Hall, Durham, NH 03824 USA
发表期刊JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
2001-11-01
卷号106期号:A11页码:25053-25073
DOI10.1029/2001JA000046
产权排序第2完成单位
收录类别SCI
摘要Using a simple model for the onset of solar eruptions, we investigate how an existing magnetic configuration containing a flux rope evolves in response to new emerging flux. Our results show that the emergence of new flux can cause a loss of ideal MHD equilibrium under certain circumstances, but the circumstances which lead to eruption are much richer and more complicated than one might expect given the simplicity of the model. The model results suggest that the actual circumstances leading to an eruption are sensitive not only to the polarity of the emerging region, but also to several other parameters, such as the strength, distance, and area of the emerging region. It has been suggested by various researchers that the emergence of new flux with an orientation which allows reconnection with the preexisting flux (a process sometimes referred to as tether cutting) will generally lead to destabilization of the coronal or prominence magnetic field. Although our results can replicate such behavior for certain restricted classes of boundary conditions, we find that, in general, there is no simple, universal relation between the orientation of the emerging flux and the likelihood of an eruption.
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0148-0227
URL查看原文
归档日期2001-12-13
WOS记录号WOS:000172049300046
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]H-ALPHA SURGES ; MAGNETIC-FIELDS ; FILAMENT ERUPTIONS ; ACTIVE REGIONS ; ROPE MODELS ; FLARES ; RECONNECTION ; EVOLUTION
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/6039
专题太阳物理研究组
通讯作者Lin, J (reprint author), Univ New Hampshire, Inst Study Earth Ocean & Space, Morse Hall, Durham, NH 03824 USA
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Lin J,Forbes, TG,Isenberg, PA,et al. Prominence eruptions and coronal mass ejections triggered by newly emerging flux[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2001,106(A11):25053-25073.
APA 林隽,Forbes, TG,Isenberg, PA,&Lin, J .(2001).Prominence eruptions and coronal mass ejections triggered by newly emerging flux.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,106(A11),25053-25073.
MLA 林隽,et al."Prominence eruptions and coronal mass ejections triggered by newly emerging flux".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 106.A11(2001):25053-25073.
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