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A CHAIN OF WINKING (OSCILLATING) FILAMENTS TRIGGERED BY AN INVISIBLE EXTREME-ULTRAVIOLET WAVE
Shen YD(申远灯)1,2,3; Ichimoto, K2; Ishii, TT2; Tian ZJ(田占军)1; Zhao RJ(赵瑞娟)1; Shibata, K2; Shen, YD (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.
发表期刊ASTROPHYSICAL JOURNAL
2014-05-10
卷号786期号:2
DOI10.1088/0004-637X/786/2/151
产权排序第1完成单位
收录类别SCI
关键词Sun: Activity Sun: Flares Sun: Filaments Sun: Magnetic Fields Prominences Sun: Oscillations
摘要Winking (oscillating) filaments have been observed for many years. However, observations of successive winking filaments in one event have not yet been reported. In this paper, we present the observations of a chain of winking filaments and a subsequent jet that are observed right after the X2.1 flare in AR11283. The event also produced an extreme-ultraviolet (EUV) wave that has two components: an upward dome-like wave (850 km s(-1)) and a lateral surface wave (554 km s(-1)) that was very weak (or invisible) in imaging observations. By analyzing the temporal and spatial relationships between the oscillating filaments and the EUV waves, we propose that all the winking filaments and the jet were triggered by the weak (or invisible) lateral surface EUV wave. The oscillation of the filaments last for two or three cycles, and their periods, Doppler velocity amplitudes, and damping times are 11-22 minutes, 6-14 km s(-1), and 25-60 minutes, respectively. We further estimate the radial component magnetic field and the maximum kinetic energy of the filaments, and they are 5-10 G and similar to 10(19) J, respectively. The estimated maximum kinetic energy is comparable to the minimum energy of ordinary EUV waves, suggesting that EUV waves can efficiently launch filament oscillations on their path. Based on our analysis results, we conclude that the EUV wave is a good agent for triggering and connecting successive but separated solar activities in the solar atmosphere, and it is also important for producing solar sympathetic eruptions.
项目资助者Kyoto University ; Open Research Programs of the Key laboratory of Dark Matter and Space Astronomy of CAS [DMS2012KT008] ; CAS Western Light Youth Project
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0004-637X
URL查看原文
归档日期2014-12-15
WOS记录号WOS:000335884500074
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]CORONAL MASS EJECTION ; AMPLITUDE LONGITUDINAL OSCILLATIONS ; DISAPPEARING SOLAR FILAMENTS ; LONG-PERIOD OSCILLATIONS ; MORETON WAVE ; TRANSVERSE OSCILLATIONS ; H-ALPHA ; MAGNETIC-FIELDS ; EUV WAVE ; PROMINENCE OSCILLATION
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被引频次:28[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/7195
专题选址与日冕观测组
通讯作者Shen, YD (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.
作者单位1.unnan Observatories, Chinese Academy of Sciences, Kunming 650011, China
2.Kwasan and Hida Observatories, Kyoto University, Yamashina-ku, Kyoto 607-8471, Japan
3.Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008, China
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Shen YD,Ichimoto, K,Ishii, TT,et al. A CHAIN OF WINKING (OSCILLATING) FILAMENTS TRIGGERED BY AN INVISIBLE EXTREME-ULTRAVIOLET WAVE[J]. ASTROPHYSICAL JOURNAL,2014,786(2).
APA Shen YD.,Ichimoto, K.,Ishii, TT.,Tian ZJ.,Zhao RJ.,...&Shen, YD .(2014).A CHAIN OF WINKING (OSCILLATING) FILAMENTS TRIGGERED BY AN INVISIBLE EXTREME-ULTRAVIOLET WAVE.ASTROPHYSICAL JOURNAL,786(2).
MLA Shen YD,et al."A CHAIN OF WINKING (OSCILLATING) FILAMENTS TRIGGERED BY AN INVISIBLE EXTREME-ULTRAVIOLET WAVE".ASTROPHYSICAL JOURNAL 786.2(2014).
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