A CHAIN OF WINKING (OSCILLATING) FILAMENTS TRIGGERED BY AN INVISIBLE EXTREME-ULTRAVIOLET WAVE
文献类型:期刊论文
作者 | Shen YD(申远灯)1,2,3![]() ![]() ![]() |
刊名 | ASTROPHYSICAL JOURNAL
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出版日期 | 2014-05-10 |
卷号 | 786期号:2 |
关键词 | Sun: activity Sun: filaments Sun: flares Sun: magnetic fields Sun: oscillations prominences |
ISSN号 | 0004-637X |
产权排序 | 第一完成单位 |
通讯作者 | Shen, YD (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China. |
英文摘要 | 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. |
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 EJECTION ; AMPLITUDE LONGITUDINAL OSCILLATIONS ; DISAPPEARING SOLAR FILAMENTS ; LONG-PERIOD OSCILLATIONS ; MORETON WAVE ; TRANSVERSE OSCILLATIONS ; H-ALPHA ; MAGNETIC-FIELDS ; EUV WAVE ; PROMINENCE OSCILLATION |
收录类别 | SCI |
原文出处 | http://iopscience.iop.org/article/10.1088/0004-637X/786/2/151/meta |
语种 | 英语 |
WOS记录号 | WOS:000335884500074 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/7195] ![]() |
专题 | 云南天文台_选址与日冕观测组 |
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 |
推荐引用方式 GB/T 7714 | 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,&Shibata, K.(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). |
入库方式: OAI收割
来源:云南天文台
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