An Observational Study of the Recurring Formation and Dissipation of a Dynamic Filament
文献类型：期刊论文
| 作者 | Zhou, Guiping1 ; Wang, Jingxiu1; Zhang, Jie2
|
| 刊名 | SOLAR PHYSICS
 |
| 出版日期 | 2016-10-01 |
| 卷号 | 291期号:8页码:2373-2390 |
| 关键词 | Prominences, Formation and Evolution Corona, Structures Magnetic fields, Photosphere |
| 英文摘要 | Based on observations at the wavelength from the Hinode spacecraft, we report here the detailed process of a dynamical filament that showed repeated appearance and dissipation in a filament channel. First, short fibrils spreading in the pre-formed filament channel joined into longer threads. The joining process was found to be accompanied by small-scale brightening activity, indicating the possible involvement of magnetic reconnection. The forming filament was thickened by merging the neighboring dark threads that were nearly parallel to the axis and also those adjacent to its main endpoints. The formed filament as a single coherent structure only existed for tens of minutes, immediately followed by the dissipation. The dissipation appeared to start with expansion of the filament body, ascending and stripping away of the filament threads, and mass drainage along the legs of the filament. The formation-dissipation process of the filament was repeated three times within the four-hour observational window of Hinode. These observations indicate that the filament structure is highly dynamic. This study provides the observational evidence to confirm the hypothesis of Martin et al. (Ann. Geophys. 26, 3061, 2008) on the irreversible build-up of magnetic fields in the corona by discrete threads or groups of threads ascending bodily into the corona. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | SOLAR OPTICAL TELESCOPE ; CANCELING MAGNETIC FEATURES ; HINODE-SPECTRO-POLARIMETER ; FINE-STRUCTURE ; ACTIVE-REGION ; FLUX CANCELLATION ; PARTIAL ERUPTION ; POLAR CROWN ; SLOW RISE ; QUIET SUN |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000385207200009 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6864]  |
| 专题 | 国家天文台_太阳物理研究部 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Solar Act, Natl Astron Observ, Beijing 100012, Peoples R China 2.George Mason Univ, Sch Phys Astron & Computat Sci, Fairfax, VA 22030 USA |
| 推荐引用方式 GB/T 7714 | Zhou, Guiping,Wang, Jingxiu,Zhang, Jie. An Observational Study of the Recurring Formation and Dissipation of a Dynamic Filament[J]. SOLAR PHYSICS,2016,291(8):2373-2390. |
| APA | Zhou, Guiping,Wang, Jingxiu,&Zhang, Jie.(2016).An Observational Study of the Recurring Formation and Dissipation of a Dynamic Filament.SOLAR PHYSICS,291(8),2373-2390. |
| MLA | Zhou, Guiping,et al."An Observational Study of the Recurring Formation and Dissipation of a Dynamic Filament".SOLAR PHYSICS 291.8(2016):2373-2390. |
入库方式： OAI收割
来源：国家天文台
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