High-resolution Observations of Sympathetic Filament Eruptions by NVST | |
Li, Shangwei1,2; Su, Yingna1,5![]() ![]() ![]() | |
刊名 | ASTROPHYSICAL JOURNAL
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2017-07-20 | |
卷号 | 844期号:1页码:13 |
关键词 | Sun: chromosphere Sun: corona Sun: filaments, prominences Sun: magnetic fields Sun:rotation Sun: UV radiation |
ISSN号 | 0004-637X |
DOI | 10.3847/1538-4357/aa78f5 |
英文摘要 | We investigate two sympathetic filament eruptions observed by the New Vacuum Solar Telescope on 2015 October 15. The full picture of the eruptions is obtained from the corresponding Solar Dynamics Observatory (SDO)/Atmospheric Imaging Assembly (AIA) observations. The two filaments start from active region NOAA 12434 in the north and end in one large quiescent filament channel in the south. The left filament erupts first, followed by the right filament eruption about 10 minutes later. Clear twist structure and rotating motion are observed in both filaments during the eruption. Both eruptions failed, since the filaments first rise up, then flow toward the south and merge into the southern large quiescent filament. We also observe repeated activations of mini filaments below the right filament after its eruption. Using magnetic field models constructed based on SDO/ HMI magnetograms via the flux rope insertion method, we find that the left filament eruption is likely to be triggered by kink instability, while the weakening of overlying magnetic fields due to magnetic reconnection at an X-point between the two filament systems might play an important role in the onset of the right filament eruption. |
WOS关键词 | CORONAL MASS EJECTIONS ; ACTIVE-REGION 10953 ; POLAR CROWN PROMINENCE ; FLUX ROPE MODEL ; MAGNETIC-FIELD ; SOLAR PROMINENCES ; KINK INSTABILITY ; EMERGING FLUX ; SLOW RISE ; EQUILIBRIUM |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | IOP PUBLISHING LTD |
WOS记录号 | WOS:000406185600008 |
内容类型 | 期刊论文 |
源URL | [http://libir.pmo.ac.cn/handle/332002/22823] ![]() |
专题 | 中国科学院紫金山天文台 |
通讯作者 | Su, Yingna |
作者单位 | 1.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Sci, Nanjing 210008, Peoples R China 2.Univ CAS, Beijing 100049, Peoples R China 3.5001 Riverwood Ave, Sarasota, FL 34231 USA 4.Stanford Univ, WW Hansen Expt Phys Lab, Stanford, CA 94305 USA 5.Univ Sci & Technol China, Sch Astron & Space Sci, Hefei 230026, Anhui, Peoples R China |
推荐引用方式 GB/T 7714 | Li, Shangwei,Su, Yingna,Zhou, Tuanhui,et al. High-resolution Observations of Sympathetic Filament Eruptions by NVST[J]. ASTROPHYSICAL JOURNAL,2017,844(1):13. |
APA | Li, Shangwei,Su, Yingna,Zhou, Tuanhui,van Ballegooijen, Adriaan,Sun, Xudong,&Ji, Haisheng.(2017).High-resolution Observations of Sympathetic Filament Eruptions by NVST.ASTROPHYSICAL JOURNAL,844(1),13. |
MLA | Li, Shangwei,et al."High-resolution Observations of Sympathetic Filament Eruptions by NVST".ASTROPHYSICAL JOURNAL 844.1(2017):13. |
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