LOCAL TWIST AND CURRENT HELICITY DISTRIBUTIONS OF ACTIVE REGION NOAA 10930 | |
Su, JT1,2; Sakurai, T1; Suematsu, Y1; Hagino, M1; Liu Y(刘煜)3; Su, JT (reprint author), Natl Astron Observ, Tokyo 1818588, Japan. | |
发表期刊 | ASTROPHYSICAL JOURNAL LETTERS |
2009-06-01 | |
卷号 | 697期号:2页码:L103-L107 |
DOI | 10.1088/0004-637X/697/2/L103 |
产权排序 | 第1完成单位 |
收录类别 | SCI |
关键词 | Sun: Activity Sun: Filaments Sun: Magnetic Fields |
摘要 | Hinode high-quality vector magnetograms and G-band data are utilized to study the distributions of local twist alpha(z) and current helicity h(c) on the active region of NOAA 10930. The new findings are as follows. (1) The patches of positive and negative helicities were intermixed showing a mesh pattern in the umbra and a thread pattern in the penumbra. (2) For its main stable sunspot (MSS), there was a positive-helicity patch accounting for similar to 43% of the umbra area surrounding the inner umbra, which had a predominantly negative helicity. For its minor rotating sunspot (MRS), there was a negative-helicity patch appearing in the umbra. (3) The fine distributions of alpha(z) and h(c) on a penumbral filament indicated that it may be possible for the two opposite helicities to coexist in a filament and their magnitudes were nearly equivalent. |
项目资助者 | NSFC [10878016, 10778723] ; National Basic Research Program of China [2006CB806301] |
语种 | 英语 |
学科领域 | Astronomy & Astrophysics |
文章类型 | Article |
ISSN | 2041-8205 |
URL | 查看原文 |
WOS记录号 | WOS:000266073800007 |
WOS研究方向 | Astronomy & Astrophysics |
WOS类目 | Astronomy & Astrophysics |
关键词[WOS] | SOLAR OPTICAL TELESCOPE ; MAGNETIC-FLUX ; 180-DEGREES AMBIGUITY ; VECTOR MAGNETOGRAMS ; PENUMBRAL FILAMENTS ; CYCLE VARIATION ; HINODE ; FIELDS ; POLARIZATION ; SUNSPOTS |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ynao.ac.cn/handle/114a53/7171 |
专题 | 选址与日冕观测组 |
通讯作者 | Su, JT (reprint author), Natl Astron Observ, Tokyo 1818588, Japan. |
作者单位 | 1.National Astronomical Observatory, Mitaka, Tokyo 181-8588, Japan 2.National Astronomical Observatories, CAS, Beijing 100012, China 3.Yunnan Astronomical Observatory, National Astronomical Observatories, Kunming 650011, China |
推荐引用方式 GB/T 7714 | Su, JT,Sakurai, T,Suematsu, Y,et al. LOCAL TWIST AND CURRENT HELICITY DISTRIBUTIONS OF ACTIVE REGION NOAA 10930[J]. ASTROPHYSICAL JOURNAL LETTERS,2009,697(2):L103-L107. |
APA | Su, JT,Sakurai, T,Suematsu, Y,Hagino, M,Liu Y,&Su, JT .(2009).LOCAL TWIST AND CURRENT HELICITY DISTRIBUTIONS OF ACTIVE REGION NOAA 10930.ASTROPHYSICAL JOURNAL LETTERS,697(2),L103-L107. |
MLA | Su, JT,et al."LOCAL TWIST AND CURRENT HELICITY DISTRIBUTIONS OF ACTIVE REGION NOAA 10930".ASTROPHYSICAL JOURNAL LETTERS 697.2(2009):L103-L107. |
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文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
LOCAL TWIST AND CURR(992KB) | 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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