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WHY IS THE SOLAR CONSTANT NOT A CONSTANT?
Li KJ(李可军)1,2; Feng, W3; Xu JC(徐景晨)1,4; Gao PX(高朋鑫)1; Yang LH(杨丽恒)1,4; Liang, HF5; Zhan, LS6; Li, KJ (reprint author), CAS, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
Source PublicationASTROPHYSICAL JOURNAL
2012-03-10
Volume747Issue:2
DOI10.1088/0004-637X/747/2/135
Contribution Rank第1完成单位
Indexed BySCI
KeywordSun: Activity Sun: General Sunspots
AbstractIn order to probe the mechanism of variations of the solar constant on the inter-solar-cycle scale, the total solar irradiance (TSI; the so-called solar constant) in the time interval of 1978 November 7 to 2010 September 20 is decomposed into three components through empirical mode decomposition and time-frequency analyses. The first component is the rotation signal, counting up to 42.31% of the total variation of TSI, which is understood to be mainly caused by large magnetic structures, including sunspot groups. The second is an annual-variation signal, counting up to 15.17% of the total variation, the origin of which is not known at this point in time. Finally, the third is the inter-solar-cycle signal, counting up to 42.52%, which is inferred to be caused by the network magnetic elements in quiet regions, whose magnetic flux ranges from (4.27-38.01) x 10(19) Mx.
Funding OrganizationNatural Science Funds of China [10873032, 10921303, 11147125, 11073010] ; 973 project [2011CB811406] ; Chinese Academy of Sciences
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0004-637X
URL查看原文
Archive Date2012-02-29
WOS IDWOS:000302856400051
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordIRRADIANCE ; CYCLE ; PERIODICITIES ; LUMINOSITY ; EVOLUTION
Citation statistics
Cited Times:25[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6206
Collection太阳物理研究组
Corresponding AuthorLi, KJ (reprint author), CAS, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
Affiliation1.National Astronomical Observatories/Yunnan Observatory, CAS, Kunming 650011, China
2.Key Laboratory of Solar Activity, National Astronomical Observatories, CAS, Beijing 100012, China
3.Research Center of Analysis and Measurement, Kunming University of Science and Technology, Kunming 650093, China
4.Graduate School of CAS, Beijing 100863, China
5.Department of Physics, Yunnan Normal University, Kunming 650093, China
6.Jingdezhen Ceramic Institute, Jingdezhen 333001, Jiangxi, China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Li KJ,Feng, W,Xu JC,et al. WHY IS THE SOLAR CONSTANT NOT A CONSTANT?[J]. ASTROPHYSICAL JOURNAL,2012,747(2).
APA Li KJ.,Feng, W.,Xu JC.,Gao PX.,Yang LH.,...&Li, KJ .(2012).WHY IS THE SOLAR CONSTANT NOT A CONSTANT?.ASTROPHYSICAL JOURNAL,747(2).
MLA Li KJ,et al."WHY IS THE SOLAR CONSTANT NOT A CONSTANT?".ASTROPHYSICAL JOURNAL 747.2(2012).
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