OBSERVATIONAL EVIDENCE OF UNWINDING AND CHIRALITY CHANGING IN PENUMBRAL FILAMENTS BY HINODE
文献类型：期刊论文
| 作者 | Su, Jiangtao1 ; Liu, Yu2; Zhang, Hongqi1; Mao, Xinjie3; Zhang, Yin1; He, Han1
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2010-02-10 |
| 卷号 | 710期号:1页码:170-179 |
| 关键词 | Sun: activity Sun: filaments, prominences Sun: magnetic topology |
| 英文摘要 | In this paper, we present a very important and quite controversial observational property of penumbral filaments that may exhibit twisting motions and change their chirality. Using high-resolution observations from the Solar Optical Telescope on board Hinode, we study the unwinding and twisting motions in the penumbral filaments of active region NOAA 10930. Penumbral filaments, including those to the northwest of the magnetic polarity inversion line (PIL) and those inside the PIL region, are found to make unwinding motions associated with the decrease of their right-handed twists. After unwinding, the filaments inside the PIL region are found to twist continuously to develop left-handed twists in them. Moreover, we find the filament elongating, expanding, splitting, and the screw pitch decreasing in the unwinding process and, getting shorter, shrinking, merging, and the screw pitch increasing in the twisting process. These observational results indicate that penumbral filaments are more inclined to be twisted magnetic flux tubes in nature. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000273850800017 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/7630]  |
| 专题 | 国家天文台_太阳物理研究部 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China 2.Chinese Acad Sci, Natl Astron Observ, Yunnan Astron Observ, Kunming 650011, Peoples R China 3.Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China |
| 推荐引用方式 GB/T 7714 | Su, Jiangtao,Liu, Yu,Zhang, Hongqi,et al. OBSERVATIONAL EVIDENCE OF UNWINDING AND CHIRALITY CHANGING IN PENUMBRAL FILAMENTS BY HINODE[J]. ASTROPHYSICAL JOURNAL,2010,710(1):170-179. |
| APA | Su, Jiangtao,Liu, Yu,Zhang, Hongqi,Mao, Xinjie,Zhang, Yin,&He, Han.(2010).OBSERVATIONAL EVIDENCE OF UNWINDING AND CHIRALITY CHANGING IN PENUMBRAL FILAMENTS BY HINODE.ASTROPHYSICAL JOURNAL,710(1),170-179. |
| MLA | Su, Jiangtao,et al."OBSERVATIONAL EVIDENCE OF UNWINDING AND CHIRALITY CHANGING IN PENUMBRAL FILAMENTS BY HINODE".ASTROPHYSICAL JOURNAL 710.1(2010):170-179. |
入库方式： OAI收割
来源：国家天文台
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