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Periodicity of the solar radius revisited by using empirical mode decomposition and the Lomb-Scargle method
Qu ZN(屈智宁)1,2,3,4; Feng, Wen5,6; Liang, Hong-Fei7
Source PublicationRESEARCH IN ASTRONOMY AND ASTROPHYSICS
2015-06
Volume15Issue:6Pages:879-888
DOI10.1088/1674-4527/15/6/010
Contribution Rank第1完成单位
Indexed BySCI
KeywordSun: Activity Sun: Solar Radius Sun: Photosphere Sun: Data Analysis
Abstract

Using the Hilbert-Huang transform and the Lomb-Scargle method, we investigate periodicities in the daily solar radius data during the time interval from February 1978 to October 1999 derived from Calern Observatory. The following prominent periods are found: (1) the rotation cycle signal; (2) several mid-term periods including 122, 162.9 and 225 days, annual-variation periodicities (319 and 359 days), quasi-triennial oscillations (3.46 and 3.94 years); (3) the 11-year Schwabe cycle, which is in anti-phase with solar activity. This result indicates that the strong magnetic field associated with the Sun has a greater inhibitive effect on the radius variation.

Funding ProjectNational Natural Science Foundation of China[11221063] ; National Natural Science Foundation of China[11273057] ; National Basic Research Program of China (973 program)[2012CB957801] ; National Basic Research Program of China (973 program)[2011CB811406]
Funding OrganizationNational Natural Science Foundation of China[11221063, 11273057] ; National Basic Research Program of China (973 program)[2012CB957801, 2011CB811406]
Language英语
Subject Area天文学 ; 太阳与太阳系
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherNATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
Publication Place20A DATUN RD, CHAOYANG, BEIJING, 100012, PEOPLES R CHINA
ISSN1674-4527
URL查看原文
Archive Date2015-05-18
WOS IDWOS:000355138900010
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordSHORT-TERM PERIODICITIES ; DIAMETER MEASUREMENTS ; SPECTRAL-ANALYSIS ; CYCLE DEPENDENCE ; APPARENT RADIUS ; SUNSPOT NUMBERS ; PHASE-ANALYSIS ; CCD ASTROLABE ; TIME-SERIES ; SPACED DATA
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Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6267
Collection太阳物理研究组
Corresponding AuthorQu ZN(屈智宁)
Affiliation1.Yunnan Observatories, Chinese Academy of Sciences, Kunming, Yunnan 650011, China
2.University of Chinese Academy of Sciences, Beijing 100049, China
3.Key Laboratory of Solar Activity, National Astronomical Observatories, CAS, Beijing 100012, China
4.Department of Physics, School of Science, Sichuan University of Science & Engineering, Zigong 643000, China
5.Research Center of Analysis and Measurement, Kunming University of Science and Technology, Kunming 650093, China
6.Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education, Nanjing 210093, China
7.Department of Physics, Yunnan Normal University, Kunming 650093, China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Qu ZN,Feng, Wen,Liang, Hong-Fei. Periodicity of the solar radius revisited by using empirical mode decomposition and the Lomb-Scargle method[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2015,15(6):879-888.
APA Qu ZN,Feng, Wen,&Liang, Hong-Fei.(2015).Periodicity of the solar radius revisited by using empirical mode decomposition and the Lomb-Scargle method.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,15(6),879-888.
MLA Qu ZN,et al."Periodicity of the solar radius revisited by using empirical mode decomposition and the Lomb-Scargle method".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 15.6(2015):879-888.
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