中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
THE SHAPE OF SOLAR CYCLES DESCRIBED BY A SIMPLIFIED BINARY MIXTURE OF GAUSSIAN FUNCTIONS

文献类型:期刊论文

作者Li FY(李富羽)1,2,3,4; Xiang NB(向南彬)1,3,4; Kong DF(孔德芳)1,3,4; Xie JL(谢婧岚)1,2,3,4
刊名ASTROPHYSICAL JOURNAL
出版日期2017-01-10
卷号834期号:2页码:192-
ISSN号0004-637X
关键词Methods: Statistical Sunspots
DOI10.3847/1538-4357/834/2/192
产权排序第1完成单位
文献子类Article
英文摘要

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.

学科主题天文学 ; 太阳与太阳系
URL标识查看原文
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
WOS关键词SUNSPOT CYCLE ; NUMBER ; INDEX
资助项目National Natural Science Foundation of China[11573065] ; National Natural Science Foundation of China[11633008] ; National Natural Science Foundation of China[11273057] ; National Natural Science Foundation of China[11603071] ; National Natural Science Foundation of China[11603069] ; Specialized Research Fund for State Key Laboratories ; Chinese Academy of Sciences
WOS研究方向Astronomy & Astrophysics
语种英语
出版者IOP PUBLISHING LTD
WOS记录号WOS:000400148300005
资助机构National Natural Science Foundation of China[11573065, 11633008, 11273057, 11603071, 11603069] ; Specialized Research Fund for State Key Laboratories ; Chinese Academy of Sciences
源URL[http://ir.ynao.ac.cn/handle/114a53/10176]  
专题云南天文台_太阳物理研究组
通讯作者Li FY(李富羽)
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China
2.University of Chinese Academy of Sciences, Beijing 100049, China
3.State Key Laboratory of Space Weather, Chinese Academy of Sciences, Beijing 100190, China
4.Key Laboratory of Solar Activity, National Astronomical Observatories, CAS, Beijing 100012, China
推荐引用方式
GB/T 7714
Li FY,Xiang NB,Kong DF,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 FY,Xiang NB,Kong DF,&Xie JL.(2017).THE SHAPE OF SOLAR CYCLES DESCRIBED BY A SIMPLIFIED BINARY MIXTURE OF GAUSSIAN FUNCTIONS.ASTROPHYSICAL JOURNAL,834(2),192-.
MLA Li FY,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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来源:云南天文台

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