Case study of a complex active-region filament eruption
文献类型：期刊论文
| 作者 | Yan XL(闫晓理)1,2 ; Qu ZQ(屈中权)1; Kong DF(孔德芳)1,3; Deng LH(邓林华)1,3; Xue ZK(薛志科)1,3
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| 刊名 | ASTRONOMY & ASTROPHYSICS
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| 出版日期 | 2013-09 |
| 卷号 | 557页码:108-117 |
| 关键词 | Sun: activity Sun: filaments Sun: flares Sun: coronal mass ejections (CMEs) Sun: surface magnetism prominences |
| ISSN号 | 0004-6361 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Yan, XL (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China. |
| 英文摘要 | Context. We investigated a solar active-region filament eruption associated with a C6.6 class flare and a coronal mass ejection (CME) in NOAA active region 08858 on 2000 February 9. Aims. We aim to better understand the relationship between filament eruptions and the associated flares and CMEs. Methods. Using BBSO, SOHO/EIT, and TRACE observational data, we analyzed the process of the active-region filament eruption in the chromosphere and the corona. Using the SOHO/MDI magnetograms, we investigated the change of the magnetic fields in the photosphere. Using the GOES soft X-ray flux and the SOHO/LASCO images, we identified the flare and CME, which were associated with this active-region filament eruption. Results. The brightenings in the chromosphere are a precursor of the filament expansion. The eruption itself can be divided into four phases: In the initial phase, the intertwined bright and dark strands of the filament expand. Then, the bright strands are divided into three parts with different expansion velocity. Next, the erupting filament-carrying flux rope expands rapidly and combines with the lower part of the expanding bright strands. Finally, the filament erupts accompanied by other dark strands overlying the filament. The overlying magnetic loops and the expansion of the filament strands can change the direction of the eruption. Conclusions. The time delay between the velocity peaks of the filament and that of the two parts of the bright strands clearly demonstrates that the breakup of the bright loops tying on the filament into individual strands is important for its eruption. The eruption is a collection of multiple processes that are physically coupled rather than a single process. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | CORONAL MASS EJECTIONS ; MAGNETIC-FLUX ROPES ; SOLAR-FLARES ; KINK INSTABILITY ; BREAKOUT MODEL ; EMERGING FLUX ; SOHO MISSION ; RECONNECTION ; EQUILIBRIUM ; PROMINENCES |
| 收录类别 | SCI ; EI |
| 原文出处 | http://www.aanda.org/articles/aa/abs/2013/09/aa19032-12/aa19032-12.html |
| 语种 | 英语 |
| WOS记录号 | WOS:000325211900007 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/6220]  |
| 专题 | 云南天文台_太阳物理研究组 云南天文台_抚仙湖太阳观测站 |
| 作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, 650011 Kunming, PR China 2.Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, 100012 Beijing, PR China 3.University of Chinese Academy of Sciences, Zhongguancun, 100049 Beijing, PR China |
| 推荐引用方式 GB/T 7714 | Yan XL,Qu ZQ,Kong DF,et al. Case study of a complex active-region filament eruption[J]. ASTRONOMY & ASTROPHYSICS,2013,557:108-117. |
| APA | Yan XL,Qu ZQ,Kong DF,Deng LH,&Xue ZK.(2013).Case study of a complex active-region filament eruption.ASTRONOMY & ASTROPHYSICS,557,108-117. |
| MLA | Yan XL,et al."Case study of a complex active-region filament eruption".ASTRONOMY & ASTROPHYSICS 557(2013):108-117. |
入库方式： OAI收割
来源：云南天文台
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