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A time series of filament eruptions observed by three eyes from space: from failed to successful eruptions
Shen YD(申远灯)1,2; Liu Y(刘煜)1; Liu, R3; Shen, YD (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
发表期刊RESEARCH IN ASTRONOMY AND ASTROPHYSICS
2011-05
卷号11期号:5页码:594-606
DOI10.1088/1674-4527/11/5/009
产权排序第1完成单位
收录类别SCI
关键词Sun: Filaments Sun: Corona Sun: Magnetic Fields Sun: Flares Sun: Coronal Mass Ejections (Cmes)
摘要We present stereoscopic observations of six sequential eruptions of a filament in the active region NOAA 11045 on 2010 Feb 8, with the advantage of the STEREO twin viewpoints in combination with Earth's viewpoint from SOHO instruments and ground-based telescopes. The last one of the six eruptions is a coronal mass ejection, but the others are not. The flare in this successful one is more intense than in the others. Moreover, the velocity of filament material in the successful one is also the largest among them. Interestingly, all the filament velocities are found to be proportional to the power of their flares. We calculate magnetic field intensity at low altitude, the decay indexes of the external field above the filament, and the asymmetry properties of the overlying fields before and after the failed eruptions and find little difference between them, indicating the same coronal confinement exists for both the failed and successful eruptions. The results suggest that, besides the confinement of the coronal magnetic field, the energy released in the low corona should be another crucial element affecting a failed or successful filament eruption. That is, a coronal mass ejection can only be launched if the energy released exceeds some critical value, given the same initial corona! conditions.
项目资助者Chinese foundations MOST [2011CB811400] ; National Natural Science Foundation of China [10933003, 11078004, 11073050]
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN1674-4527
URL查看原文
归档日期2011-09-06
WOS记录号WOS:000290844200009
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]CORONAL MASS EJECTIONS ; MAGNETIC-FIELD ; SOLAR ERUPTIONS ; FLUX ROPES ; FLARE ; PROMINENCES ; TELESCOPE ; MISSION ; ENERGY ; IMAGER
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/7177
专题选址与日冕观测组
通讯作者Shen, YD (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
作者单位1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011, China
2.Graduate University of Chinese Academy of Sciences, Beijing 100049, China
3.Space Weather Research Laboratory, New Jersey Institute of Technology, University Heights, Newark, NJ 07102–1982, USA
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Shen YD,Liu Y,Liu, R,et al. A time series of filament eruptions observed by three eyes from space: from failed to successful eruptions[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2011,11(5):594-606.
APA Shen YD,Liu Y,Liu, R,&Shen, YD .(2011).A time series of filament eruptions observed by three eyes from space: from failed to successful eruptions.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,11(5),594-606.
MLA Shen YD,et al."A time series of filament eruptions observed by three eyes from space: from failed to successful eruptions".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 11.5(2011):594-606.
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