Periodicity for 50 yr of daily solar wind velocity

doi:10.1093/mnras/stx1904

CORC > 国家天文台 > 中国科学院国家天文台

	Periodicity for 50 yr of daily solar wind velocity
	Li, K. J.2,3,5; Zhang, J.2,4,6; Feng, W.1
刊名	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
	2017-11-01
卷号	472 期号:1 页码:289-294
关键词	Sun: activity Sun: corona solar wind
ISSN号	0035-8711
DOI	10.1093/mnras/stx1904
英文摘要	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.
资助项目	National Natural Science Foundation of China[11573065] ; National Natural Science Foundation of China[11633008] ; Specialized Research Fund for State Key Laboratories
WOS关键词	MAGNETIC-FIELD ; GEOMAGNETIC-ACTIVITY ; TIME-SERIES ; SPACED DATA ; EVOLUTION ; ROTATION ; CYCLES ; PLASMA ; SUN
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	OXFORD UNIV PRESS
WOS记录号	WOS:000413765800024
资助机构	National Natural Science Foundation of China ; National Natural Science Foundation of China ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/37304]
专题	中国科学院国家天文台
通讯作者	Li, K. J.; Feng, W.
作者单位	1.Kunming Univ Sci & Technol, Res Ctr Anal & Measurement, Kunming 650093, Yunnan, Peoples R China 2.Chinese Acad Sci, Yunnan Observ, Kunming 650011, Yunnan, Peoples R China 3.Chinese Acad Sci, Ctr Astron Mega Sci, 20A Datun Rd, Beijing 100012, Peoples R China 4.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China 5.Chinese Acad Sci, State Key Lab Space Weather, Beijing 100190, Peoples R China 6.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Li, K. J.,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, K. J.,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, K. J.,et al."Periodicity for 50 yr of daily solar wind velocity".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 472.1(2017):289-294.