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| Temporal Evolution of the Rotation of the Interplanetary Magnetic FieldB(x),B-y, andB(z)Components | |
| Alternative Title | WOS:000541824900001 |
| Xiang, N. B.; Ning, Z. J.; Li, F. Y. | |
| Source Publication | ASTROPHYSICAL JOURNAL
 |
| 2020 | |
| Volume | 896Issue:1Pages:12 |
| DOI | 10.3847/1538-4357/ab91bc |
| ISSN | 0004-637X |
| Language | 英语 |
| Keyword | Interplanetary magnetic fields SOLAR DIFFERENTIAL ROTATION SHORT-TERM PERIODICITIES CORONAL BRIGHT POINTS SOHO-EIT IMAGES WAVELET TRANSFORM SUNSPOT AREAS FIELD CYCLE WIND SUN |
| Abstract | The daily interplanetary magnetic field (IMF)B-x,B-y, andB(z)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 dailyB(x),B-y, andB(z)components is 27.4 days, implying the existence of rotational modulation in the three time series. The dependence of the rotation cycle lengths for bothB(x)andB(y)components on solar cycle phase almost shows the same result. The rotation cycle lengths for bothB(x)andB(y)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 theB(z)component, its rotation cycle length does not show such a solar cycle variation. The significant periods in the variation ofB(x)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 ofB(y)rotation. The relationship of solar activity withB(x)andB(y)components is complex. The possible mechanisms for the temporal variation of the rotation period of the three components are discussed. |
| Indexed By | SCI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.nssc.ac.cn/handle/122/7634 |
| Collection | 中国科学院国家空间科学中心 |
| Affiliation | 1.[Xiang, N. B.] Chinese Acad Sci, Yunnan Observ, Kunming 650011, Yunnan, Peoples R China 2.[Xiang, N. B. 3.Ning, Z. J.] Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210008, Peoples R China 4.[Li, F. Y.] Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China 5.[Li, F. Y.] Chinese Acad Sci, State Key Lab Space Weather, Beijing 100190, Peoples R China 6.[Xiang, N. B.] Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China |
| Recommended Citation GB/T 7714 | Xiang, N. B.,Ning, Z. J.,Li, F. Y.. Temporal Evolution of the Rotation of the Interplanetary Magnetic FieldB(x),B-y, andB(z)Components[J]. ASTROPHYSICAL JOURNAL,2020,896(1):12. |
| APA | Xiang, N. B.,Ning, Z. J.,&Li, F. Y..(2020).Temporal Evolution of the Rotation of the Interplanetary Magnetic FieldB(x),B-y, andB(z)Components.ASTROPHYSICAL JOURNAL,896(1),12. |
| MLA | Xiang, N. B.,et al."Temporal Evolution of the Rotation of the Interplanetary Magnetic FieldB(x),B-y, andB(z)Components".ASTROPHYSICAL JOURNAL 896.1(2020):12. |
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