THE FORMATION AND MAGNETIC STRUCTURES OF ACTIVE-REGION FILAMENTS OBSERVED BY NVST, SDO, AND HINODE
文献类型：期刊论文
| 作者 | Yan XL(闫晓理)1,2 ; Xue ZK(薛志科)1; Pan, GM3; Wang JC(王金成)1; Xiang YY(向永源)1; Kong DF(孔德芳)1; Yang LH(杨丽恒)1
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| 刊名 | ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
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| 出版日期 | 2015-08 |
| 卷号 | 219期号:2 |
| ISSN号 | 0067-0049 |
| 关键词 | Sun: activity Sun: filaments, prominences Sun: flares Sun: magnetic fields Sun: photosphere sunspots |
| 通讯作者 | Yan, XL (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650216, Peoples R China. |
| 产权排序 | 第一完成单位 |
| 英文摘要 | To better understand the properties of solar active-region filaments, we present a detailed study on the formation and magnetic structures of two active-region filaments in active region NOAA 11884 during a period of four days. It is found that the shearing motion of the opposite magnetic polarities and the rotation of the small sunspots with negative polarity play an important role in the formation of two active-region filaments. During the formation of these two active-region filaments, one foot of the filaments was rooted in a small sunspot with negative polarity. The small sunspot rotated not only around another small sunspot with negative polarity, but also around the center of its umbra. By analyzing the nonlinear force-free field extrapolation using the vector magnetic fields in the photosphere, twisted structures were found in the two active-region filaments prior to their eruptions. These results imply that the magnetic fields were dragged by the shearing motion between opposite magnetic polarities and became more horizontal. The sunspot rotation twisted the horizontal magnetic fields and finally formed the twisted active-region filaments. |
| 学科主题 | Astronomy & Astrophysics |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | CORONAL MASS EJECTIONS ; SOLAR OPTICAL TELESCOPE ; RAPID SUNSPOT ROTATION ; HELICAL FLUX ROPE ; PROMINENCE FORMATION ; FORCE-FREE ; SPECKLE MASKING ; QUIET SUN ; FIELD ; ERUPTIONS |
| 收录类别 | SCI |
| 原文出处 | http://iopscience.iop.org/article/10.1088/0067-0049/219/2/17/meta |
| 语种 | 英语 |
| WOS记录号 | WOS:000361876600003 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/4714]  |
| 专题 | 云南天文台_抚仙湖太阳观测站 |
| 作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China 2.Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China 3.College of Mathematics Physics and Information Engineering, Jiaxing University, Jiaxing 314001, China |
| 推荐引用方式 GB/T 7714 | Yan XL,Xue ZK,Pan, GM,et al. THE FORMATION AND MAGNETIC STRUCTURES OF ACTIVE-REGION FILAMENTS OBSERVED BY NVST, SDO, AND HINODE[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2015,219(2). |
| APA | Yan XL.,Xue ZK.,Pan, GM.,Wang JC.,Xiang YY.,...&Yang LH.(2015).THE FORMATION AND MAGNETIC STRUCTURES OF ACTIVE-REGION FILAMENTS OBSERVED BY NVST, SDO, AND HINODE.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,219(2). |
| MLA | Yan XL,et al."THE FORMATION AND MAGNETIC STRUCTURES OF ACTIVE-REGION FILAMENTS OBSERVED BY NVST, SDO, AND HINODE".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 219.2(2015). |
入库方式： OAI收割
来源：云南天文台
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