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PMO OpenIR  > 太阳活动的多波段观测研究团组  > 期刊论文
题名: MULTIWAVELENGTH OBSERVATIONS OF A PARTIALLY ERUPTIVE FILAMENT ON 2011 SEPTEMBER 8
作者: Zhang, Q. M.1; Ning, Z. J.1; Guo, Y.2, 3; Zhou, T. H.1; Cheng, X.2, 3; Ji, H. S.1; Feng Li(封莉)1, 4; Wiegelmann, T.4
刊名: ASTROPHYSICAL JOURNAL
出版日期: 2015-05-20
卷号: 805, 期号:1, 页码:4
关键词: Sun: corona ; Sun: coronal mass ejections (CMEs) ; Sun: flares ; Sun: filaments, prominences ; Supporting material: animations
学科分类: 天文和天体物理
DOI: 10.1088/0004-637X/805/1/4
文章类型: Article
英文摘要: In this paper, we report our multiwavelength observations of a partial filament eruption event in NOAA active region (AR) 11283 on 8 September 2011. A magnetic null point and the corresponding spine and separatrix surface are found in the AR. Beneath the null point, a sheared arcade supports the filament along the highly complex and fragmented polarity inversion line. After being activated, the sigmoidal filament erupted and split into two parts. The major part rose at speeds of 90-150 km s(-1) before reaching the maximum apparent height of similar to 115 Mm. Afterward, it returned to the solar surface in a bumpy way at speeds of 20-80 km s(-1). The rising and falling motions were clearly observed in the extreme-ultraviolet, UV, and Ha wavelengths. The failed eruption of the main part was associated with an M6.7 flare with a single hard X-ray source. The runaway part of the filament, however, separated from and rotated around the major part for similar to 1 turn at the eastern leg before escaping from the corona, probably along large-scale open magnetic field lines. The ejection of the runaway part resulted in a very faint coronal mass ejection that propagated at an apparent speed of 214 km s(-1) in the outer corona. The filament eruption also triggered a transverse kink-mode oscillation of the adjacent coronal loops in the same AR. The amplitude and period of the oscillation were 1.6Mm and 225 s. Our results are important for understanding the mechanisms of partial filament eruptions, and provide new constraints to theoretical models. The multiwavelength observations also shed light on space weather prediction.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Astronomy & Astrophysics
研究领域[WOS]: Astronomy & Astrophysics
关键词[WOS]: MAGNETIC-FLUX ROPE ; CORONAL MASS EJECTIONS ; ULTRAVIOLET LATE-PHASE ; SOLAR FILAMENT ; LOOP OSCILLATIONS ; KINK INSTABILITY ; PROMINENCE OSCILLATION ; SDO/AIA OBSERVATIONS ; STEREO MISSION ; AR 11283
收录类别: SCI
所属项目名称: PMO_LIB-IR
语种: 英语
WOS记录号: WOS:000354991300004
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/14919
Appears in Collections:太阳活动的多波段观测研究团组_期刊论文

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作者单位: 1.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Sci, Nanjing 210008, Jiangsu, Peoples R China
2.Nanjing Univ, Sch Astron & Space Sci, Nanjing 210093, Jiangsu, Peoples R China
3.Nanjing Univ, Minist Educ, Key Lab Modern Astron & Astrophys, Nanjing 210093, Jiangsu, Peoples R China
4.Max Planck Inst Sonnensyst Forsch, D-37077 Gottingen, Germany
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