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题名: Temporal Variation of the Rotation of the Solar Mean Magnetic Field
作者: Xie, J. L.; Shi, X. J.; Xu, J. C.
作者部门: 空间科学部
通讯作者: Xie, JL (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China. ; Xie, JL (reprint author), Univ Chinese Acad Sci, Beijing 100049, Peoples R China. ; Xie, JL (reprint author), Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China. ; Xie, JL (reprint author), Chinese Acad Sci, Ctr Astron Mega Sci, Beijing 100012, Peoples R China.
关键词: methods: data analysis ; Sun: magnetic fields ; Sun: rotation
刊名: ASTRONOMICAL JOURNAL
ISSN号: 0004-6256
出版日期: 2017
卷号: 153, 期号:4, 页码:171
收录类别: SCI
项目资助者: National Natural Science Foundation of China [11573065, 11673061, 11633008] ; Applied Basic Research Foundation of Yunnan Province, China [2014FB190] ; Collaborating Research Program of CAS Key Laboratory of Solar Activity [KLSA201613] ; Specialized Research Fund for State Key Laboratories ; Center for Astronomical MegaScience ; Chinese Academy of Sciences
英文摘要: Based on continuous wavelet transformation analysis, the daily solar mean magnetic field (SMMF) from 1975 May 16 to 2014 July 31 is analyzed to reveal its rotational behavior. Both the recurrent plot in Bartels form and the continuous wavelet transformation analysis show the existence of rotational modulation in the variation of the daily SMMF. The dependence of the rotational cycle lengths on solar cycle phase is also studied, which indicates that the yearly mean rotational cycle lengths generally seem to be longer during the rising phase of solar cycles and shorter during the declining phase. The mean rotational cycle length for the rising phase of all of the solar cycles in the considered time is 28.28 +/- 0.67 days, while for the declining phase it is 27.32 +/- 0.64 days. The difference of the mean rotational cycle lengths between the rising phase and the declining phase is 0.96 days. The periodicity analysis, through the use of an auto-correlation function, indicates that the rotational cycle lengths have a significant period of about 10.1 years. Furthermore, the cross-correlation analysis indicates that there exists a phase difference between the rotational cycle lengths and solar activity.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.nssc.ac.cn/handle/122/6115
Appears in Collections:空间科学部_期刊论文

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