Mini-filament Eruptions Triggering Confined Solar Flares Observed by ONSET and SDO

doi:10.3847/2041-8213/aacaf9

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	Mini-filament Eruptions Triggering Confined Solar Flares Observed by ONSET and SDO
	Yang,Shuhong 1,2; Zhang,Jun 1,2
刊名	The Astrophysical Journal Letters
	2018-06-19
卷号	860 期号:2
关键词	Sun: activity Sun: filaments, prominences Sun: flares Sun: magnetic fields
ISSN号	2041-8205
DOI	10.3847/2041-8213/aacaf9
英文摘要	Abstract Using the observations from the Optical and Near-infrared Solar Eruption Tracer (ONSET) and the Solar Dynamics Observatory (SDO), we study an M5.7 flare in AR 11476 on 2012 May 10 and a micro-flare in the quiet Sun on 2017 March 23. Before the onset of each flare, there is a reverse S-shaped filament above the polarity inversion line, then the filaments become unstable and begin to rise. The rising filaments gain the upper hand over the tension force of the dome-like overlying loops and thus successfully erupt outward. The footpoints of the reconnecting overlying loops successively brighten and are observed as two flare ribbons, while the newly formed low-lying loops appear as post-flare loops. These eruptions are similar to the classical model of successful filament eruptions associated with coronal mass ejections (CMEs). However, the erupting filaments in this study move along large-scale lines and eventually reach the remote solar surface; i.e., no filament material is ejected into the interplanetary space. Thus, both the flares are confined. These results reveal that some successful filament eruptions can trigger confined flares. Our observations also imply that this kind of filament eruption may be ubiquitous on the Sun, from active regions (ARs) with large flares to the quiet Sun with micro-flares.
语种	英语
出版者	The American Astronomical Society
WOS记录号	IOP:2041-8205-860-2-AACAF9
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/21812]
专题	中国科学院国家天文台
作者单位	1.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China 2.CAS Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, People’s Republic of China; shuhongyang@nao.cas.cn
推荐引用方式 GB/T 7714	Yang,Shuhong,Zhang,Jun. Mini-filament Eruptions Triggering Confined Solar Flares Observed by ONSET and SDO[J]. The Astrophysical Journal Letters,2018,860(2).
APA	Yang,Shuhong,&Zhang,Jun.(2018).Mini-filament Eruptions Triggering Confined Solar Flares Observed by ONSET and SDO.The Astrophysical Journal Letters,860(2).
MLA	Yang,Shuhong,et al."Mini-filament Eruptions Triggering Confined Solar Flares Observed by ONSET and SDO".The Astrophysical Journal Letters 860.2(2018).