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NEW OBSERVATION OF FAILED FILAMENT ERUPTIONS: THE INFLUENCE OF ASYMMETRIC CORONAL BACKGROUND FIELDS ON SOLAR ERUPTIONS
Liu Y(刘煜)1,2; Su, J3; Xu Z(徐稚)1; Lin, H2; Shibata, K4; Kurokawa, H4; Liu, Y (reprint author), Natl Astron Observ, Yunnan Astron Observ, Kunming 650011, Peoples R China.
发表期刊ASTROPHYSICAL JOURNAL LETTERS
2009-05-01
卷号696期号:1页码:L70-L73
DOI10.1088/0004-637X/696/1/L70
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收录类别SCI
关键词Sun: Activity Sun: Corona Sun: Filaments
摘要Failed filament eruptions not associated with a coronal mass ejection (CME) have been observed and reported as evidence for solar coronal field confinement on erupting flux ropes. In those events, each filament eventually returns to its origin on the solar surface. In this Letter, a new observation of two failed filament eruptions is reported which indicates that the mass of a confined filament can be ejected to places far from the original filament channel. The jetlike mass motions in the two failed filament eruptions are thought to be due to the asymmetry of the background coronal magnetic fields with respect to the locations of the filament channels. The asymmetry of the coronal fields is confirmed by an extrapolation based on a potential field model. The obvious imbalance between the positive and negative magnetic flux (with a ratio of 1: 3) in the bipolar active region is thought to be the direct cause of the formation of the asymmetric coronal fields. We think that the asymmetry of the background fields can not only influence the trajectories of ejecta, but also provide a relatively stronger confinement for flux rope eruptions than the symmetric background fields do.
项目资助者National Natural Science Foundation of China [10843010]
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN2041-8205
URL查看原文
WOS记录号WOS:000265253100017
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]MASS EJECTIONS ; FLUX ROPES ; KINK ; SIGMOIDS ; SURGES
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被引频次:28[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/7172
专题选址与日冕观测组
通讯作者Liu, Y (reprint author), Natl Astron Observ, Yunnan Astron Observ, Kunming 650011, Peoples R China.
作者单位1.Yunnan Astronomical Observatory, National Astronomical Observatories, Kunming 650011, China
2.Institute for Astronomy, University of Hawaii, 34 Ohia Ku Street, Pukalani, HI 96768, USA
3.National Astronomical Observatories, Beijing 100012, China
4.Kwasan and Hida Observatories, Kyoto University, Yamashina-ku, Kyoto 607-8471, Japan
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Liu Y,Su, J,Xu Z,et al. NEW OBSERVATION OF FAILED FILAMENT ERUPTIONS: THE INFLUENCE OF ASYMMETRIC CORONAL BACKGROUND FIELDS ON SOLAR ERUPTIONS[J]. ASTROPHYSICAL JOURNAL LETTERS,2009,696(1):L70-L73.
APA Liu Y.,Su, J.,Xu Z.,Lin, H.,Shibata, K.,...&Liu, Y .(2009).NEW OBSERVATION OF FAILED FILAMENT ERUPTIONS: THE INFLUENCE OF ASYMMETRIC CORONAL BACKGROUND FIELDS ON SOLAR ERUPTIONS.ASTROPHYSICAL JOURNAL LETTERS,696(1),L70-L73.
MLA Liu Y,et al."NEW OBSERVATION OF FAILED FILAMENT ERUPTIONS: THE INFLUENCE OF ASYMMETRIC CORONAL BACKGROUND FIELDS ON SOLAR ERUPTIONS".ASTROPHYSICAL JOURNAL LETTERS 696.1(2009):L70-L73.
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