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THE SHAPE OF SOLAR CYCLES DESCRIBED BY A SIMPLIFIED BINARY MIXTURE OF GAUSSIAN FUNCTIONS
Li, F. Y.1,2,3,4; Xiang, N. B.1,3,4; Kong, D. F.1,3,4; Xie, J. L.1,2,3,4
2017-01-10
Source PublicationASTROPHYSICAL JOURNAL
Volume834Issue:2
AbstractSunspot cycles usually present a double-peak structure. This work is devoted to using a function to describe the shape of sunspot cycles, including bimodal cycles, and we find that the shape of sunspot cycles can be described by a binary mixture of Gaussian functions with six parameters, two amplitudes, two gradients of curve, and two rising times, and the parameters could be reduced to three. The fitting result of this binary mixture of Gaussian functions is compared with some other functions used previously in the literature, and this function works pretty well, especially at cycle peaks. It is worth mentioning that the function can describe well the shape of those sunspot cycles that show double peaks, and it is superior to the binary mixture of the Laplace functions that was once utilized. The Solar Influences Data Analysis Center, on behalf of the World Data Center, recently issued a new version (version 2) of sunspot number. The characteristics of sunspot cycles are investigated, based on the function description of the new version.
SubtypeArticle
KeywordMethods: Statistical Sunspots
WOS HeadingsScience & Technology ; Physical Sciences
Funding OrganizationNational Natural Science Foundation of China(11573065 ; National Natural Science Foundation of China(11573065 ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; 11633008 ; 11633008 ; 11273057 ; 11273057 ; 11603071 ; 11603071 ; 11603069) ; 11603069) ; National Natural Science Foundation of China(11573065 ; National Natural Science Foundation of China(11573065 ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; 11633008 ; 11633008 ; 11273057 ; 11273057 ; 11603071 ; 11603071 ; 11603069) ; 11603069)
DOI10.3847/1538-4357/834/2/192
WOS KeywordSUNSPOT CYCLE ; NUMBER ; INDEX
Indexed BySCI
Language英语
Funding OrganizationNational Natural Science Foundation of China(11573065 ; National Natural Science Foundation of China(11573065 ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; 11633008 ; 11633008 ; 11273057 ; 11273057 ; 11603071 ; 11603071 ; 11603069) ; 11603069) ; National Natural Science Foundation of China(11573065 ; National Natural Science Foundation of China(11573065 ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; 11633008 ; 11633008 ; 11273057 ; 11273057 ; 11603071 ; 11603071 ; 11603069) ; 11603069)
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000400148300005
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/8848
Collection光学天文研究部
Affiliation1.Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, State Key Lab Space Weather, Beijing 100190, Peoples R China
4.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China
Recommended Citation
GB/T 7714
Li, F. Y.,Xiang, N. B.,Kong, D. F.,et al. THE SHAPE OF SOLAR CYCLES DESCRIBED BY A SIMPLIFIED BINARY MIXTURE OF GAUSSIAN FUNCTIONS[J]. ASTROPHYSICAL JOURNAL,2017,834(2).
APA Li, F. Y.,Xiang, N. B.,Kong, D. F.,&Xie, J. L..(2017).THE SHAPE OF SOLAR CYCLES DESCRIBED BY A SIMPLIFIED BINARY MIXTURE OF GAUSSIAN FUNCTIONS.ASTROPHYSICAL JOURNAL,834(2).
MLA Li, F. Y.,et al."THE SHAPE OF SOLAR CYCLES DESCRIBED BY A SIMPLIFIED BINARY MIXTURE OF GAUSSIAN FUNCTIONS".ASTROPHYSICAL JOURNAL 834.2(2017).
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