Some basic questions on helicity inferred from vector magnetograms
文献类型：期刊论文
| 作者 | Xu HaiQing ; Gao Yu; Zhang HongQi; XU HaiQing; GAO Yu; ZHANG HongQi
|
| 刊名 | SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY
 |
| 出版日期 | 2009-11-01 |
| 卷号 | 52期号:11页码:1749-1753 |
| 关键词 | photosphere magnetic field helicity solar dynamo |
| 英文摘要 | This paper summarizes current helicity measurements in the solar active regions (ARs). There is a basic agreement with the "hemispheric sign rule (HSR)" of the current helicity among different vector magnetographs through two solar cycles, but there is a large dispersion of the fraction of ARs following the HSR. In our sample, there are 50%-78% ARs in solar cycle 22 and 44%-79% ARs in cycle 23 following the HSR. A variation is also found in the fraction of the ARs following the HSR between different instruments even when the same ARs are selected. The difference also exists for the same instrument when the selected ARs are different. There are some differences in the variation of HSR with solar cycle for the individual helicity parameter inferred from different instruments. Factors which influence the correlation of different data sets are analyzed. |
| 收录类别 | SCI ; ISTP |
| 语种 | 英语 |
| WOS记录号 | WOS:000271718600019 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/8132]  |
| 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 | Xu HaiQing,Gao Yu,Zhang HongQi,et al. Some basic questions on helicity inferred from vector magnetograms[J]. SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY,2009,52(11):1749-1753. |
| APA | Xu HaiQing,Gao Yu,Zhang HongQi,XU HaiQing,GAO Yu,&ZHANG HongQi.(2009).Some basic questions on helicity inferred from vector magnetograms.SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY,52(11),1749-1753. |
| MLA | Xu HaiQing,et al."Some basic questions on helicity inferred from vector magnetograms".SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY 52.11(2009):1749-1753. |
入库方式： OAI收割
来源：国家天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。