Periodicity of the solar radius revisited by using empirical mode decomposition and the Lomb-Scargle method

	Periodicity of the solar radius revisited by using empirical mode decomposition and the Lomb-Scargle method
	Qu ZN(屈智宁)1,2,3,4 ; Feng, W 5,6; Liang, HF 7; Liang, Hong-Fei
刊名	RESEARCH IN ASTRONOMY AND ASTROPHYSICS
	2015-06
卷号	15 期号:6 页码:879-888
关键词	Sun: activity Sun: solar radius Sun: photosphere Sun: data analysis
ISSN号	1674-4527
通讯作者	Qu, ZN (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Yunnan, Peoples R China.
产权排序	第一完成单位
英文摘要	Using the Hilbert-Huang transform and the Lomb-Scargle method, we investigate periodicities in the daily solar radius data during the time interval from February 1978 to October 1999 derived from Calern Observatory. The following prominent periods are found: (1) the rotation cycle signal; (2) several mid-term periods including 122, 162.9 and 225 days, annual-variation periodicities (319 and 359 days), quasi-triennial oscillations (3.46 and 3.94 years); (3) the 11-year Schwabe cycle, which is in anti-phase with solar activity. This result indicates that the strong magnetic field associated with the Sun has a greater inhibitive effect on the radius variation.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	SHORT-TERM PERIODICITIES ; DIAMETER MEASUREMENTS ; SPECTRAL-ANALYSIS ; CYCLE DEPENDENCE ; APPARENT RADIUS ; SUNSPOT NUMBERS ; PHASE-ANALYSIS ; CCD ASTROLABE ; TIME-SERIES ; SPACED DATA
收录类别	SCI
原文出处	http://iopscience.iop.org/article/10.1088/1674-4527/15/6/010/meta
语种	英语
WOS记录号	WOS:000355138900010
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/6267]
专题	云南天文台_太阳物理研究组
作者单位	1.Yunnan Observatories, Chinese Academy of Sciences, Kunming, Yunnan 650011, China 2.University of Chinese Academy of Sciences, Beijing 100049, China 3.Key Laboratory of Solar Activity, National Astronomical Observatories, CAS, Beijing 100012, China 4.Department of Physics, School of Science, Sichuan University of Science & Engineering, Zigong 643000, China 5.Research Center of Analysis and Measurement, Kunming University of Science and Technology, Kunming 650093, China 6.Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education, Nanjing 210093, China 7.Department of Physics, Yunnan Normal University, Kunming 650093, China
推荐引用方式 GB/T 7714	Qu ZN,Feng, W,Liang, HF,et al. Periodicity of the solar radius revisited by using empirical mode decomposition and the Lomb-Scargle method[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2015,15(6):879-888.
APA	Qu ZN,Feng, W,Liang, HF,&Liang, Hong-Fei.(2015).Periodicity of the solar radius revisited by using empirical mode decomposition and the Lomb-Scargle method.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,15(6),879-888.
MLA	Qu ZN,et al."Periodicity of the solar radius revisited by using empirical mode decomposition and the Lomb-Scargle method".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 15.6(2015):879-888.