Vector magnetic field measurement at Hualrou and helicity of active regions
文献类型：期刊论文
| 作者 | Zhang, M.; Deng, Y. Y.; Zhang, H. Q. |
| 刊名 | ADVANCES IN SPACE RESEARCH
 |
| 出版日期 | 2007 |
| 卷号 | 39期号:11页码:1741-1748 |
| 关键词 | Sun magnetic field magnetic helicity flux emergence dynamo |
| 英文摘要 | The Solar Magnetic Field Telescope (SMFT) at the Huairou Solar Observing Station of the National Astronomical Observatory has been obtaining photospheric vector magnetograms on a daily basis for more than 20 years. In this paper we first introduce our magnetograph and our data reduction routine. Then we focus on what we can learn from these vector magnetic field measurements about the magnetic non-potentiality of active regions. Derived physical quantities, such as shear angle, a value and current helicity, are good indicators of magnetic helicity. By studying values and evolutions of these physical quantities, we get a glimpse of the dynamo process in the solar interior. By examining the evolution of these quantities we can also learn what are the favorable conditions for coronal eruptions such as flares and coronal mass ejections. (c) 2007 COSPAR. Published by Elsevier Ltd. All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000253588800011 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/7285]  |
| 专题 | 国家天文台_太阳物理研究部 |
| 作者单位 | Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, M.,Deng, Y. Y.,Zhang, H. Q.. Vector magnetic field measurement at Hualrou and helicity of active regions[J]. ADVANCES IN SPACE RESEARCH,2007,39(11):1741-1748. |
| APA | Zhang, M.,Deng, Y. Y.,&Zhang, H. Q..(2007).Vector magnetic field measurement at Hualrou and helicity of active regions.ADVANCES IN SPACE RESEARCH,39(11),1741-1748. |
| MLA | Zhang, M.,et al."Vector magnetic field measurement at Hualrou and helicity of active regions".ADVANCES IN SPACE RESEARCH 39.11(2007):1741-1748. |
入库方式： OAI收割
来源：国家天文台
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