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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
发表期刊ASTROPHYSICAL JOURNAL
卷号834期号:2
摘要Sunspot 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.
文章类型Article
关键词Methods: Statistical Sunspots
WOS标题词Science & Technology ; Physical Sciences
资助者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) ; 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
关键词[WOS]SUNSPOT CYCLE ; NUMBER ; INDEX
收录类别SCI
语种英语
资助者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) ; 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研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000400148300005
引用统计
文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/8848
专题光学天文研究部
作者单位1.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
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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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