SOLAR FILAMENT MATERIAL OSCILLATIONS AND DRAINAGE BEFORE ERUPTION
文献类型：期刊论文
| 作者 | Bi Y(毕以)1,3 ; Jiang YC(姜云春)1; Yang JY(杨家艳)1; Hong JC(洪俊超)1,2; Li HD(李海东)1; Yang D(杨丹)1,2; Yang B(杨波)1,2
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2014-08-01 |
| 卷号 | 790期号:2 |
| ISSN号 | 0004-637X |
| 关键词 | Sun: coronal mass ejections (CMEs) Sun: filaments Sun: oscillations prominences |
| 通讯作者 | Bi, Y (reprint author), Chinese Acad Sci, Yunnan Observ, POB 110, Kunming 650011, Peoples R China. |
| 产权排序 | 第一完成单位 |
| 英文摘要 | Both large-amplitude longitudinal (LAL) oscillations and material drainage in a solar filament are associated with the flow of material along the filament axis, often followed by an eruption. However, the relationship between these two motions and a subsequent eruption event is poorly understood. We analyze a filament eruption using EUV imaging data captured by the Atmospheric Imaging Array on board the Solar Dynamics Observatory and the Ha images from the Global Oscillation Network Group. Hours before the eruption, the filament was activated, with one of its legs undergoing a slow rising motion. The asymmetric activation inclined the filament relative to the solar surface. After the active phase, LAL oscillations were observed in the inclined filament. The oscillation period increased slightly over time, which may suggest that the magnetic fields supporting the filament evolve to be flatter during the slow rising phase. After the oscillations, a significant amount of filament material was drained toward one filament endpoint, followed immediately by the violent eruption of the filament. The material drainage may further support the change in magnetic topology prior to the eruption. Moreover, we suggest that the filament material drainage could play a role in the transition from a slow to a fast rise of the erupting filament. |
| 学科主题 | Astronomy & Astrophysics |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | CORONAL MASS EJECTIONS ; AMPLITUDE LONGITUDINAL OSCILLATIONS ; ABSORPTION FEATURES ; PERIODIC MOTION ; MAGNETIC-FIELD ; MORETON WAVE ; FLUX ROPES ; PROMINENCE ; FLARE ; ENERGY |
| 收录类别 | SCI |
| 原文出处 | http://iopscience.iop.org/article/10.1088/0004-637X/790/2/100/meta |
| 语种 | 英语 |
| WOS记录号 | WOS:000339115800017 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/6245]  |
| 专题 | 云南天文台_太阳物理研究组 |
| 作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, P.O. Box 110, Kunming 650011, China 2.Graduate School of Chinese Academy of Sciences, Beijing 100049, China 3.Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China |
| 推荐引用方式 GB/T 7714 | Bi Y,Jiang YC,Yang JY,et al. SOLAR FILAMENT MATERIAL OSCILLATIONS AND DRAINAGE BEFORE ERUPTION[J]. ASTROPHYSICAL JOURNAL,2014,790(2). |
| APA | Bi Y.,Jiang YC.,Yang JY.,Hong JC.,Li HD.,...&Yang B.(2014).SOLAR FILAMENT MATERIAL OSCILLATIONS AND DRAINAGE BEFORE ERUPTION.ASTROPHYSICAL JOURNAL,790(2). |
| MLA | Bi Y,et al."SOLAR FILAMENT MATERIAL OSCILLATIONS AND DRAINAGE BEFORE ERUPTION".ASTROPHYSICAL JOURNAL 790.2(2014). |
入库方式： OAI收割
来源：云南天文台
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