| OBSERVATIONAL EVIDENCE OF UNWINDING AND CHIRALITY CHANGING IN PENUMBRAL FILAMENTS BY HINODE | |
Su, JT1,2; Liu Y(刘煜)3 ; Zhang, HQ1,2; Mao, XJ4; Zhang, Y1,2; He, H1,2; Su, JT (reprint author), Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China.
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| 发表期刊 | ASTROPHYSICAL JOURNAL
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| 2010-02-10 | |
| 卷号 | 710期号:1页码:170-179 |
| DOI | 10.1088/0004-637X/710/1/170 |
| 产权排序 | 第3完成单位 |
| 收录类别 | SCI |
| 关键词 | Sun: Activity Sun: Magnetic Topology Sun: Filaments Prominences |
| 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. |
| 项目资助者 | AJFC [10778723, 10878016] ; NSFC [10473016, 10273002, 10843010, 10673016, 60673158, 10933003, 10803012, 10803011] ; National Basic Research Program of China [2006CB806301] ; Young Researcher Grant of National Astronomical Observatories ; Chinese Academy of Sciences ; ISAS/JAXA ; NASA ; STFC (UK) ; ESA ; NSC (Norway) |
| 语种 | 英语 |
| 学科领域 | Astronomy & Astrophysics |
| 文章类型 | Article |
| ISSN | 0004-637X |
| URL | 查看原文 |
| WOS记录号 | WOS:000273850800017 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | SOLAR OPTICAL TELESCOPE ; MAGNETIC-FIELDS ; SUNSPOT PENUMBRAE ; CURRENT HELICITY ; FINE-STRUCTURE ; VECTOR MAGNETOGRAMS ; TWISTING MOTIONS ; ACTIVE REGIONS ; FLUX TUBES ; CYCLE 22 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/7175 |
| 专题 | 选址与日冕观测组 |
| 通讯作者 | Su, JT (reprint author), Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China. |
| 作者单位 | 1.National Astronomical Observatories, CAS, Beijing 100012, China 2.Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China 3.Yunnan Astronomical Observatory, National Astronomical Observatories, CAS, Kunming 650011, China 4.Department of Astronomy, Beijing Normal University, Beijing 100875, China |
| 推荐引用方式 GB/T 7714 | Su, JT,Liu Y,Zhang, HQ,et al. OBSERVATIONAL EVIDENCE OF UNWINDING AND CHIRALITY CHANGING IN PENUMBRAL FILAMENTS BY HINODE[J]. ASTROPHYSICAL JOURNAL,2010,710(1):170-179. |
| APA | Su, JT.,Liu Y.,Zhang, HQ.,Mao, XJ.,Zhang, Y.,...&Su, JT .(2010).OBSERVATIONAL EVIDENCE OF UNWINDING AND CHIRALITY CHANGING IN PENUMBRAL FILAMENTS BY HINODE.ASTROPHYSICAL JOURNAL,710(1),170-179. |
| MLA | Su, JT,et al."OBSERVATIONAL EVIDENCE OF UNWINDING AND CHIRALITY CHANGING IN PENUMBRAL FILAMENTS BY HINODE".ASTROPHYSICAL JOURNAL 710.1(2010):170-179. |
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| OBSERVATIONAL EVIDEN（1890KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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