MOVING MAGNETIC FEATURES AROUND AR 10930 FROM HIGH-RESOLUTION DATA OBSERVED BY HINODE/SOT
文献类型：期刊论文
| 作者 | Li, Xiaobo; Zhang, Hongqi
|
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2013-07-01 |
| 卷号 | 771期号:1 |
| 关键词 | Sun: activity Sun: chromosphere Sun: flares Sun: photosphere Sun: surface magnetism sunspots |
| 英文摘要 | We investigate the origin, configuration, and evolution of moving magnetic features (MMFs) in the moat and penumbra regions of NOAA AR 10930 using Hinode/SOT filtergrams and magnetograms. We differentiate MMFs into four types in terms of the location of first appearance and the source of initial flux. The main results are summed up as follows: (1) 50% of the MMFs are produced from or within the penumbra, while 50% are produced within the moat. The MMFs formed in the penumbra normally move outward along radial directions. The MMFs formed in the moat have more dispersed directions of motion. The average speed of most MMFs decreases radially. (2) About 63% of moat fluxes are input by flux emergences. Newly emerged MMFs are normally smaller in size. In their rise phase, they gain flux by adding newly emerging flux or merging other elements, and in the decline phase they lose flux by flux cancellation or fragmentation. The MMFs that are fragments separated from penumbra or other magnetic elements usually have larger flux and longer lifetime. They start their decay process once they are formed. Frequent merging and flux cancellation between MMFs are the dominant factors in MMFs' evolution. (3) Cancellations between opposite-polarity magnetic elements are responsible for most of the low chromospheric bright points. Bipole emergence and MMFs' severance from the penumbra also produce bright points. Elongated or horn-shaped micro-filaments may appear during the separation or cancellation process between magnetic elements. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000321274200022 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/5814]  |
| 专题 | 国家天文台_太阳物理研究部 |
| 作者单位 | Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Xiaobo,Zhang, Hongqi. MOVING MAGNETIC FEATURES AROUND AR 10930 FROM HIGH-RESOLUTION DATA OBSERVED BY HINODE/SOT[J]. ASTROPHYSICAL JOURNAL,2013,771(1). |
| APA | Li, Xiaobo,&Zhang, Hongqi.(2013).MOVING MAGNETIC FEATURES AROUND AR 10930 FROM HIGH-RESOLUTION DATA OBSERVED BY HINODE/SOT.ASTROPHYSICAL JOURNAL,771(1). |
| MLA | Li, Xiaobo,et al."MOVING MAGNETIC FEATURES AROUND AR 10930 FROM HIGH-RESOLUTION DATA OBSERVED BY HINODE/SOT".ASTROPHYSICAL JOURNAL 771.1(2013). |
入库方式： OAI收割
来源：国家天文台
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