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Long-term variations of the coronal rotation and solar activity
Li KJ(李可军)1,2; Shi XJ(石祥军)1,3; Feng, W4; Xie, JL1,3; Gao PX(高朋鑫)1; Zhan, LS5; Liang, HF6; Li, KJ (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2012-07
Volume423Issue:4Pages:3584-3588
DOI10.1111/j.1365-2966.2012.21155.x
Contribution Rank第1完成单位
Indexed BySCI
KeywordMethods: Data Analysis Sun: Activity Sun: Corona Sun: Rotation
AbstractRecently, Chandra and Vats have obtained the yearly period length of the solar coronal rotation cycle by analysing the daily adjusted solar radio flux at the 10.7-cm wavelength for the years 19472009. In this paper, we use the time series (series I) of the yearly period length to investigate the long-term variation of the rotation of radio emission corona, and we find a weak decreasing trend in the time series. We use the empirical mode decomposition to decompose both the yearly mean value (series II) of the solar radio flux at the 10.7-cm wavelength and series I into different periodical components. There is a secular trend for each of the two series, and we find a negative correlation in the two trends. The decomposed 11-yr-cycle components of the two series show different and complicated periods and there is a phase relation between them. We investigate the cycle-related variation of the coronal rotation length, and we find that there is no Schwable cycle of statistical significance for the long-term variation of the rotation cycle length.
Funding OrganizationNational Natural Science Foundation of China [10873032, 10921303, 11147125, 11073010] ; National Key Research Science Programmes of China [2011CB811406, 2012CB957801] ; Chinese Academy of Sciences
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0035-8711
URL查看原文
Archive Date2012-07-20
WOS IDWOS:000306003600044
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordX-RAY CORONA ; DIFFERENTIAL ROTATION ; BRIGHT POINTS ; TIME-SERIES ; FE-XIV ; CYCLE ; PERIODICITIES ; RATES
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6199
Collection太阳物理研究组
Corresponding AuthorLi, KJ (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
Affiliation1.National Astronomical Observatories/Yunnan Observatory, CAS, Kunming 650011, China
2.Key Laboratory of Solar Activity, National Astronomical Observatories, CAS, Beijing 100012, China
3.Graduate School of the Chinese Academy of Sciences, Beijing, China
4.Research Center of Analysis and Measurement, Kunming University of Science and Technology, Kunming 650093, China
5.Jingdezhen Ceramic Institute, Jingdezhen 333001, Jiangxi, China
6.Department of Physics, Yunnan Normal University, Kunming 650093, China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Li KJ,Shi XJ,Feng, W,et al. Long-term variations of the coronal rotation and solar activity[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2012,423(4):3584-3588.
APA Li KJ.,Shi XJ.,Feng, W.,Xie, JL.,Gao PX.,...&Li, KJ .(2012).Long-term variations of the coronal rotation and solar activity.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,423(4),3584-3588.
MLA Li KJ,et al."Long-term variations of the coronal rotation and solar activity".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 423.4(2012):3584-3588.
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