Fine magnetic characteristics of a light bridge observed by Hinode
文献类型：期刊论文
| 作者 | Liu, S.1,2 ; Liu, D.1
|
| 刊名 | ADVANCES IN SPACE RESEARCH
 |
| 出版日期 | 2015-06-15 |
| 卷号 | 55期号:12页码:2931-2939 |
| 关键词 | Sunspot Light bridge Magnetic field |
| 英文摘要 | Light bridge (LB) is bright structure crossing the umbra of sunspots and associated to the breakup or assembly of sunspots. In this paper, a LB is presented and studied using the observatory data obtained by Hinode satellites. Force-free factor (alpha) and the z-component of current (J(z)) and tension force (T-z) are calculated basing on the vector magnetograms observed by Spectro-Polarimeter (SP) of the Solar Optical Telescope (SOT) on board Hinode. It is found that the amplitudes of alpha and J(z), of LB are generally larger than those of umbra. It is found that there are two signs of J(z), along LB, which are divided at near the middle position of LB. It is found that the amplitudes of T-z of LB are smaller than those of umbra and there are changes of sign of T-z between the boundary of LB and umbra. Through comparisons and investigations, it suggest that LB and umbra maybe two different magnetic systems, which is a necessary condition for interaction magnetic reconnection. (C) 2015 COSPAR. Published by Elsevier Ltd. All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000355367600013 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/5691]  |
| 专题 | 国家天文台_射电天文研究部 |
| 作者单位 | 1.Liao Ning Univ, Shenyang, Peoples R China 2.Chinese Acad Sci, Natl Astron Observ, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, S.,Liu, D.. Fine magnetic characteristics of a light bridge observed by Hinode[J]. ADVANCES IN SPACE RESEARCH,2015,55(12):2931-2939. |
| APA | Liu, S.,&Liu, D..(2015).Fine magnetic characteristics of a light bridge observed by Hinode.ADVANCES IN SPACE RESEARCH,55(12),2931-2939. |
| MLA | Liu, S.,et al."Fine magnetic characteristics of a light bridge observed by Hinode".ADVANCES IN SPACE RESEARCH 55.12(2015):2931-2939. |
入库方式： OAI收割
来源：国家天文台
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