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Periodicity for 50 yr of daily solar wind velocity
Li KJ(李可军)1,3,5; Zhang J(张娟)1,4,6; Feng, W.2
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2017-11-01
Volume472Issue:1Pages:289-294
DOI10.1093/mnras/stx1904
Contribution Rank第1完成单位
Indexed BySCI
KeywordSun: Activity Sun: Corona Solar Wind
Abstract

Daily mean velocity of solar wind that was surveyed near the Earth's orbit at about 1 au from 1963 November 27 to 2015 November 30 and issued by OMNIWeb is used to look into its periodicity through the Lomb-Scargle periodogram method. As the strongest periodical signal, the solar activity cycle of about 10.4 yr is found in high-velocity wind, but in low-velocity wind, the 9.17-yr cycle appears instead. The rotation cycle of about 27 d and its 1/2 and 1/3 harmonic periods are clearly detected in all-, low-and high-velocity wind, and at their periodograms, several individual periodical peaks appear very close to the peaks of these three periods. The annual period of about 1.07 yr is identified for both all-and low-velocity wind, but not for high-velocity wind after 1994. The 1.68-yr period occurs in all-and high-velocity wind, but does not appear in low-velocity wind. The period of about 2.42 yr appears just in the all-velocity wind after 1994, but its twofold period (about 4.83 yr) appears in both all-and high-velocity wind. The period of about 4.1 yr occurs in all-, low- and high-velocity wind. The possible origin of these periods is discussed.

Funding ProjectNational Natural Science Foundation of China[11573065] ; National Natural Science Foundation of China[11633008] ; Specialized Research Fund for State Key Laboratories
Funding OrganizationNational Natural Science Foundation of China[11573065, 11633008] ; Specialized Research Fund for State Key Laboratories
Language英语
Subject Area天文学 ; 太阳与太阳系 ; 太阳物理学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherOXFORD UNIV PRESS
Publication PlaceGREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
ISSN0035-8711
URL查看原文
WOS IDWOS:000413765800024
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordMAGNETIC-FIELD ; GEOMAGNETIC-ACTIVITY ; TIME-SERIES ; SPACED DATA ; EVOLUTION ; ROTATION ; CYCLES ; PLASMA ; SUN
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/11955
Collection太阳物理研究组
Corresponding AuthorLi KJ(李可军)
Affiliation1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China
2.Research Center of Analysis and Measurement, Kunming University of Science and Technology, Kunming 650093, China
3.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100012, China
4.Key Laboratory of Solar Activity, National Astronomical Observatories, CAS, Beijing 100012, China
5.State Key Laboratory of Space Weather, Chinese Academy of Sciences, Beijing 100190, China
6.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 100049, China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Li KJ,Zhang J,Feng, W.. Periodicity for 50 yr of daily solar wind velocity[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2017,472(1):289-294.
APA Li KJ,Zhang J,&Feng, W..(2017).Periodicity for 50 yr of daily solar wind velocity.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,472(1),289-294.
MLA Li KJ,et al."Periodicity for 50 yr of daily solar wind velocity".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 472.1(2017):289-294.
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