中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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。