NSSC OpenIR  > 空间科学部
SYMPATHETIC SOLAR FILAMENT ERUPTIONS
Rui Wang; Ying D. Liu; Ivan Zimovets; Huidong Hu; Xinghua Dai; Zhongwei Yang
Department空间科学部
Source PublicationAstrophysical Journal Letters
2016
Volume827Issue:1Pages:L12
ISSN2041-8205
Language英语
AbstractThe 2015 March 15 coronal mass ejection as one of the two that together drove the largest geomagnetic storm of solar cycle 24 so far was associated with sympathetic filament eruptions. We investigate the relations between the different filaments involved in the eruption. A surge-like small-scale filament motion is confirmed as the trigger that initiated the erupting filament with multi-wavelength observations and using a forced magnetic field extrapolation method. When the erupting filament moved to an open magnetic field region, it experienced an obvious acceleration process and was accompanied by a C-class flare and the rise of another larger filament that eventually failed to erupt. We measure the decay index of the background magnetic field, which presents a critical height of 118 Mm. Combining with a potential field source surface extrapolation method, we analyze the distributions of the large-scale magnetic field, which indicates that the open magnetic field region may provide a favorable condition for F2 rapid acceleration and have some relation with the largest solar storm. The comparison between the successful and failed filament eruptions suggests that the confining magnetic field plays an important role in the preconditions for an eruption.
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/5552
Collection空间科学部
Recommended Citation
GB/T 7714
Rui Wang,Ying D. Liu,Ivan Zimovets,et al. SYMPATHETIC SOLAR FILAMENT ERUPTIONS[J]. Astrophysical Journal Letters,2016,827(1):L12.
APA Rui Wang,Ying D. Liu,Ivan Zimovets,Huidong Hu,Xinghua Dai,&Zhongwei Yang.(2016).SYMPATHETIC SOLAR FILAMENT ERUPTIONS.Astrophysical Journal Letters,827(1),L12.
MLA Rui Wang,et al."SYMPATHETIC SOLAR FILAMENT ERUPTIONS".Astrophysical Journal Letters 827.1(2016):L12.
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