Study on the Temporal Evolution of the Radial Differential Rotation of Solar Corona Using Radio Emissions

doi:10.3847/1538-4357/ad8641

YNAO OpenIR > 抚仙湖太阳观测和研究基地

	Study on the Temporal Evolution of the Radial Differential Rotation of Solar Corona Using Radio Emissions
	Xiang NB(向南彬)1,2,3 ; Zhao, X. H.2; Deng, L. H.4; Li, F. Y.5; Wang, Y. J.4; Tan, X. W.4
发表期刊	ASTROPHYSICAL JOURNAL
	2024-11-01
卷号	976 期号:1
DOI	10.3847/1538-4357/ad8641
产权排序	第1完成单位
收录类别	SCI
摘要	The daily measurements of the disk-integrated solar radio flux, observed by the Radio Solar Telescope Network, at 245, 410, 610, 1415, 2695, 4995, and 8800 MHz during the time interval of 1989 January 1 to 2019 December 17, are used to investigate the temporal evolution of radial differential rotation of the solar corona using the methods of ensemble empirical mode decomposition (EEMD) and wavelet analysis. Overall, the results reveal that over the 30 yr period, the rotation rates for the observed solar radio flux within the frequency range of 245-8800 MHz show an increase with frequency. This verifies the existence of the radial differential rotation of the solar corona over long timescales of nearly three solar cycles. Based on the radio emission mechanism, to some extent, the results can also serve as an indicator of how the rotation of the solar upper atmosphere varies with altitude within a specific range. From the temporal variation of rotation cycle lengths of radio flux, the coronal rotation at different altitudes from the low corona to approximately 1.3 R circle dot exhibits complex temporal variations with the progression of the solar cycle. However, in this altitude range, over the past 30 yr from 1989 to 2019, the coronal rotation consistently becomes gradually slower as the altitude increases. Finally, the EEMD method can extract rotation cycle signals from these highly randomized radio emissions, and so it can be used to investigate the rotation periods for the radio emissions at higher or lower frequencies.
资助项目	National Natural Science Foundation of China[12373059]; National Natural Science Foundation of China[12203054]; National Natural Science Foundation of China[42474224]; Strategic Priority Research Program of Chinese Academy of Sciences[XDB 41000000]; Yunnan Revitalization Talent Support Program Innovation Team Project[202405AS350012]; Yunnan Fundamental Research Projects[202301AV070007]; Sichuan Science and Technology Program[2023NSFSC1349]; Beijing Natural Science Foundation[1242035]; Specialized Research Fund for State Key Laboratories; Chinese Academy of Sciences
项目资助者	National Natural Science Foundation of China[12373059, 12203054, 42474224] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB 41000000] ; Yunnan Revitalization Talent Support Program Innovation Team Project[202405AS350012] ; Yunnan Fundamental Research Projects[202301AV070007] ; Sichuan Science and Technology Program[2023NSFSC1349] ; Beijing Natural Science Foundation[1242035] ; Specialized Research Fund for State Key Laboratories ; Chinese Academy of Sciences
语种	英语
学科领域	天文学 ; 太阳与太阳系
文章类型	Article
出版者	IOP Publishing Ltd
出版地	TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN	0004-637X
URL	查看原文
WOS记录号	WOS:001354868300001
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	EMPIRICAL MODE DECOMPOSITION ; RIEGER-TYPE PERIODICITY ; MAGNETIC-FIELD ; QUIET-SUN ; WAVELET TRANSFORM ; TIME ; IMAGES ; METER ; CYCLE ; TERM
引用统计
文献类型	期刊论文
版本	出版稿
条目标识符	http://ir.ynao.ac.cn/handle/114a53/27686
专题	抚仙湖太阳观测和研究基地
作者单位	1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People's Republic of China; [email protected]; 2.State Key Laboratory of Space Weather, National Space Science Center, Chinese Academy of Sciences, Beijing 100190, People's Republic of China; [email protected]; 3.Yunnan Key Laboratory of Solar Physics and Space Science, Kunming 650216, People's Republic of China; 4.School of Mathematics and Computer Science, Yunnan Minzu University, Kunming 650504, People's Republic of China; [email protected]; 5.Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, People's Republic of China
第一作者单位	中国科学院云南天文台
推荐引用方式 GB/T 7714	Xiang NB,Zhao, X. H.,Deng, L. H.,et al. Study on the Temporal Evolution of the Radial Differential Rotation of Solar Corona Using Radio Emissions[J]. ASTROPHYSICAL JOURNAL,2024,976(1).
APA	向南彬,Zhao, X. H.,Deng, L. H.,Li, F. Y.,Wang, Y. J.,&Tan, X. W..(2024).Study on the Temporal Evolution of the Radial Differential Rotation of Solar Corona Using Radio Emissions.ASTROPHYSICAL JOURNAL,976(1).
MLA	向南彬,et al."Study on the Temporal Evolution of the Radial Differential Rotation of Solar Corona Using Radio Emissions".ASTROPHYSICAL JOURNAL 976.1(2024).

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