中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Temporal Evolution of the Rotation of the Interplanetary Magnetic FieldB(x),B-y, andB(z)Components

文献类型:期刊论文

AuthorXiang NB(向南彬)1,2,5; Ning, Z. J.2; Li, F. Y.3,4
SourceThe Astrophysical Journal
Issued Date2020-06-01
Volume896Issue:1Pages:13
KeywordInterplanetary magnetic fields
ISSN0004-637X
DOI10.3847/1538-4357/ab91bc
Rank第1完成单位
Corresponding AuthorXiang, N. B.(nanbin@ynao.ac.cn)
SubtypeArticle
English Abstract

The daily interplanetary magnetic field (IMF) Bx, By, and Bz components from 1967 January 1 to 2018 December 31 listed in the OMNI database are used to investigate their periodicity and study temporal variation of their rotation cycle lengths through continuous wavelet transform, autocorrelation, and cross-correlation analyses. The dominant rotation period in each of the daily Bx, By, and Bz components is 27.4 days, implying the existence of rotational modulation in the three time series. The dependence of the rotation cycle lengths for both Bx and By components on solar cycle phase almost shows the same result. The rotation cycle lengths for both Bx and By components increase from the start to the first year of a new Schwabe cycle, then decrease gradually from the first to the fourth year, and finally fluctuate around the 27.4-day period within a small amplitude from the fourth year to the end of the Schwabe solar cycle. For the Bz component, its rotation cycle length does not show such a solar cycle variation. The significant periods in the variation of Bx rotation are 2.9, 3.4, 4.3, 4.9, 10.5, and 11.9 yr, and there exist significant periods of 3.4, 9.9, and 14.1 yr in the variation of By rotation. The relationship of solar activity with Bx and By components is complex. The possible mechanisms for the temporal variation of the rotation period of the three components are discussed.

Subject天文学
URL查看原文
Publish PlaceTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
Funding ProjectNational Natural Science Foundation of China[11633008] ; National Natural Science Foundation of China[11603069] ; Key Laboratory of Dark Matter and Space Astronomy ; Specialized Research Fund for State Key Laboratories ; Collaborating Research Program of CAS Key Laboratory of Solar Activity[KLSA201911] ; Chinese Academy of Sciences
WOS KeywordSOLAR DIFFERENTIAL ROTATION ; SHORT-TERM PERIODICITIES ; CORONAL BRIGHT POINTS ; SOHO-EIT IMAGES ; WAVELET TRANSFORM ; SUNSPOT AREAS ; FIELD ; CYCLE ; WIND ; SUN
WOS Research AreaAstronomy & Astrophysics
Language英语
PublisherIOP PUBLISHING LTD
WOS IDWOS:000541824900001
Funding OrganizationNational Natural Science Foundation of China[11633008, 11603069] ; Key Laboratory of Dark Matter and Space Astronomy ; Specialized Research Fund for State Key Laboratories ; Collaborating Research Program of CAS Key Laboratory of Solar Activity[KLSA201911] ; Chinese Academy of Sciences
源URL[http://ir.ynao.ac.cn/handle/114a53/23439]  
Collection云南天文台_抚仙湖太阳观测站
Corresponding AuthorXiang NB(向南彬)
Affiliation1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, People's Republic of China
2.Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Nanjing 210008, People's Republic of China
3.School of Earth and Space Sciences, Peking University, Beijing 100871, People's Republic of China
4.State Key Laboratory of Space Weather, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
5.Key Laboratory of Solar Activity, National Astronomical Observatories, CAS, Beijing 100012, People's Republic of China
Recommended Citation
GB/T 7714
Xiang NB,Ning, Z. J.,Li, F. Y.. Temporal Evolution of the Rotation of the Interplanetary Magnetic FieldB(x),B-y, andB(z)Components[J]. The Astrophysical Journal,2020,896(1):13.
APA Xiang NB,Ning, Z. J.,&Li, F. Y..(2020).Temporal Evolution of the Rotation of the Interplanetary Magnetic FieldB(x),B-y, andB(z)Components.The Astrophysical Journal,896(1),13.
MLA Xiang NB,et al."Temporal Evolution of the Rotation of the Interplanetary Magnetic FieldB(x),B-y, andB(z)Components".The Astrophysical Journal 896.1(2020):13.

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来源:云南天文台

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