A Confined Partial Eruption of Double-decker Filaments

doi:10.3847/1538-4357/ab0f3f

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	A Confined Partial Eruption of Double-decker Filaments
	Zheng,Ruisheng 7; Yang,Shuhong 1,2; Rao,Changhui 3,4; Liu,Yangyi 3,4; Zhong,Libo 3,4; Wang,Bing 7; Song,Hongqiang 7; Li,Zhen 5,6; Chen,Yao 7
刊名	The Astrophysical Journal
	2019-04-17
卷号	875 期号:1
关键词	Sun: activity Sun: corona Sun: filaments, prominences
ISSN号	0004-637X
DOI	10.3847/1538-4357/ab0f3f
英文摘要	Abstract Filament eruptions, one of the most energetic explosions on the Sun, release large quantities of magnetized plasma into the interplanetary space. Hence, the understanding of the initiation and evolution of filament eruptions can provide broader implications for space weather and geospace climate. Here, we present a confined partial eruption of double-decker structure that consisted of two vertically separated filaments on 2016 April 16. Only the upper filament erupted, and the eruption was closely associated with an episode of flux cancellation, surrounding transient brightenings, and unambiguous tether-cutting reconnections of the overlying sheared loops. However, the lower filament was nearly intact through the eruption. Interestingly, the erupting material moved along large-scale external loops and eventually arrived at remote sites, indicating a confined partial eruption. All the results show that the partial eruption involved two magnetic reconnections at least, and the bottom magnetic cancellation and internal tether-cutting reconnections between filaments both play critical roles in triggering the eruption. We conjecture that the newly formed low-lying loops due to tether-cutting reconnections and the flare loops resulting from the partial eruption likely contribute to maintaining the equilibrium of the lower filament. It is also suggested that the restriction of some large-scale external magnetic structures is crucial to turn the successful partial eruption into a confined event.
语种	英语
出版者	The American Astronomical Society
WOS记录号	IOP:0004-637X-875-1-AB0F3F
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/26018]
专题	中国科学院国家天文台
作者单位	1.CAS Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, People's Republic of China 2.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China 3.The Key Laboratory on Adaptive Optics, Chinese Academy of Sciences, P.O. Box 350, Shuangliu, Chengdu 610209, Sichuan, People's Republic of China 4.The Laboratory on Adaptive Optics, Institute of Optics and Electronics, Chinese Academy of Sciences, P.O. Box 350, Shuangliu, Chengdu 610209, Sichuan, People's Republic of China 5.School of Astronomy and Space Science, Nanjing University, Nanjing 210023, People’s Republic of China 6.Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education, Nanjing 210023, People’s Republic of China 7.Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, and Institute of Space Sciences, Shandong University, 264209 Weihai, People's Republic of China; ruishengzheng@sdu.edu.cn, chrao@ioe.ac.cn
推荐引用方式 GB/T 7714	Zheng,Ruisheng,Yang,Shuhong,Rao,Changhui,et al. A Confined Partial Eruption of Double-decker Filaments[J]. The Astrophysical Journal,2019,875(1).
APA	Zheng,Ruisheng.,Yang,Shuhong.,Rao,Changhui.,Liu,Yangyi.,Zhong,Libo.,...&Chen,Yao.(2019).A Confined Partial Eruption of Double-decker Filaments.The Astrophysical Journal,875(1).
MLA	Zheng,Ruisheng,et al."A Confined Partial Eruption of Double-decker Filaments".The Astrophysical Journal 875.1(2019).