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THE SHAPE OF SOLAR CYCLES DESCRIBED BY A SIMPLIFIED BINARY MIXTURE OF GAUSSIAN FUNCTIONS
Li, F. Y.; Xiang, N. B.; Kong, D. F.; Xie, J. L.; Li, FY (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.; Li, FY (reprint author), Univ Chinese Acad Sci, Beijing 100049, Peoples R China.; Li, FY (reprint author), Chinese Acad Sci, State Key Lab Space Weather, Beijing 100190, Peoples R China.; Li, FY (reprint author), Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China.
Department空间科学部
Source PublicationASTROPHYSICAL JOURNAL
2017
Volume834Issue:2Pages:192
ISSN0004-637X
Language英语
KeywordMethods: Statistical Sunspots
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.
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/6118
Collection空间科学部
Corresponding AuthorLi, FY (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.; Li, FY (reprint author), Univ Chinese Acad Sci, Beijing 100049, Peoples R China.; Li, FY (reprint author), Chinese Acad Sci, State Key Lab Space Weather, Beijing 100190, Peoples R China.; Li, FY (reprint author), 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):192.
APA Li, F. Y..,Xiang, N. B..,Kong, D. F..,Xie, J. L..,Li, FY .,...&Li, FY .(2017).THE SHAPE OF SOLAR CYCLES DESCRIBED BY A SIMPLIFIED BINARY MIXTURE OF GAUSSIAN FUNCTIONS.ASTROPHYSICAL JOURNAL,834(2),192.
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):192.
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20178342192.pdf(693KB)期刊论文作者接受稿开放获取CC BY-NC-SAApplication Full Text
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