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The relationships of sunspot magnetic field strength with sunspot area, umbral area and Penumbra-Umbra Radius Ratio
Jin CL(金春兰)1,2; Qu ZQ(屈中权)3; Xu CL(胥成林)1,2; Zhang XY(张霄宇)3; Sun MG(孙明国)1,2; Jin, CL (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Astron Observ, Kunming 650011, Peoples R China.
Source PublicationASTROPHYSICS AND SPACE SCIENCE
2006-12
Volume306Issue:1-2Pages:23-27
DOI10.1007/s10509-006-9217-6
Contribution Rank第1完成单位
Indexed BySCI
KeywordSunspots-magnetic Field-umbral Area-radius Ratio
AbstractStokes profile inversion is very important to get the information on the vector magnetic field. Because the magnetic fields cannot be directly observed, adopting Stokes spectrum analysis to obtain vector magnetic field has become the major technique recently. Therefore, by Stokes profile inversion, we obtained vector magnetic fields of two layers based on the numerical solution (DELO solution, ReEs et al., 1989) to the polarized radiative transfer equation. We analyze the relationships of sunspot magnetic field strength with sunspot area, umbral area and penumbra-umbra radius ratio. By statistical research, it is found that the field strengths of the upper layer and the lower one decrease with the increasing penumbra-umbra radius ratio, and that the logarithmic expression is able to fit well the relationship between the maximum field strength of the upper layer and the sunspot area. Furthermore, we verify the result obtained by Ringnes and Jensen (1961) about the relationship between the maximum magnetic field strength and the umbral area, and the result obtained by Antalova (1991) of the relationship between the field strength and the penumbra-umbra radius ratio.
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0004-640X
URL查看原文
Archive Date2006-12-28
WOS IDWOS:000242605600005
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordSTOKES PROFILE ANALYSIS
Citation statistics
Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6082
Collection太阳物理研究组
Corresponding AuthorJin, CL (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Astron Observ, Kunming 650011, Peoples R China.
Affiliation1.National Astronomical Observatories/Yunnan Astronomical Observatory, Chinese Academy of Sciences, Kunming, Yunnan, 650011, P.R. China
2.Graduate School of Chinese Academy of Sciences, Beijing, P.R. China
3.National Astronomical Observatories/Yunnan Astronomical Observatory, Chinese Academy of Sciences, Kunming, Yunnan, 650011, P.R. China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Jin CL,Qu ZQ,Xu CL,et al. The relationships of sunspot magnetic field strength with sunspot area, umbral area and Penumbra-Umbra Radius Ratio[J]. ASTROPHYSICS AND SPACE SCIENCE,2006,306(1-2):23-27.
APA Jin CL,Qu ZQ,Xu CL,Zhang XY,Sun MG,&Jin, CL .(2006).The relationships of sunspot magnetic field strength with sunspot area, umbral area and Penumbra-Umbra Radius Ratio.ASTROPHYSICS AND SPACE SCIENCE,306(1-2),23-27.
MLA Jin CL,et al."The relationships of sunspot magnetic field strength with sunspot area, umbral area and Penumbra-Umbra Radius Ratio".ASTROPHYSICS AND SPACE SCIENCE 306.1-2(2006):23-27.
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