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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.
Source PublicationASTROPHYSICAL JOURNAL LETTERS
2009-05-01
Volume696Issue:1Pages:L70-L73
DOI10.1088/0004-637X/696/1/L70
Contribution Rank第1完成单位
Indexed BySCI
KeywordSun: Activity Sun: Corona Sun: Filaments
AbstractFailed 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.
Funding OrganizationNational Natural Science Foundation of China [10843010]
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN2041-8205
URL查看原文
WOS IDWOS:000265253100017
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordMASS EJECTIONS ; FLUX ROPES ; KINK ; SIGMOIDS ; SURGES
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Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/7172
Collection选址与日冕观测组
Corresponding AuthorLiu, Y (reprint author), Natl Astron Observ, Yunnan Astron Observ, Kunming 650011, Peoples R China.
Affiliation1.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
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
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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