Systematic investigation of mid-term periodicity of the solar full-disk magnetic fields

doi:10.1088/1674-4527/19/9/131

CORC > 国家天文台 > 中国科学院国家天文台

	Systematic investigation of mid-term periodicity of the solar full-disk magnetic fields
	Xiang, Nan-Bin 1,2,3
刊名	RESEARCH IN ASTRONOMY AND ASTROPHYSICS
	2019-09-01
卷号	19 期号:9 页码:12
关键词	Sun: general Sun: activity Sun: magnetic fields
ISSN号	1674-4527
DOI	10.1088/1674-4527/19/9/131
英文摘要	The Magnetic Plage Strength Index (MPSI) and the Mount Wilson Sunspot Index (MWSI), which have been measured at Mount Wilson Observatory (MWO) since the 1970s and which indicate weak and strong magnetic field activity on the solar full disk, respectively, are used to systematically investigate midterm periodicities in the solar full-disk magnetic fields. Multitudinous mid-term periodicities are detected in MPSI and MWSI on timescales of 0.3 to 4.5 yr, and these periodicities are found to fluctuate around several typical periodicities within a small amplitude in different solar cycles or phases. The periodicity of 3.44 yr is found in MPSI, and the periodicities of 3.85 and 3.00 yr are detected in MWSI. Our analysis indicates that they reflect the true oscillating signals of solar magnetic field activity. The typical periodicities are 2.8, 2.3 and 1.8 yr in MPSI and MWSI, and possible mechanisms for these periodicities are discussed. A 1.3 yr periodicity is only detected in MPSI, and should be related to meridional flows on the solar surface. The typical annual periodicity of MPSI and MWSI is 1.07 yr, which is not derived from the annual variation of Earth's heliolatitude. Several periodicities shorter than 1 yr found in MPSI and MWSI are considered to be Rieger-type periodicities.
资助项目	NASA ; ONR ; NSF ; National Natural Science Foundation of China[11573065] ; National Natural Science Foundation of China[11633008] ; National Natural Science Foundation of China[11603069] ; Collaborating Research Program of CAS Key Laboratory of Solar Activity[KLSA201911] ; Education Department of Sichuan province[16ZB0245] ; Education Department of Sichuan province[18ZA0350] ; Key Laboratory of Dark Matter and Space Astronomy ; Chinese Academy of Sciences ; Mount Wilson Institute
WOS关键词	NORTH-SOUTH ASYMMETRY ; SHORT-TERM PERIODICITIES ; MOUNT-WILSON ; ACTIVITY INDEXES ; WAVELET ANALYSIS ; SUNSPOT AREAS ; ROSSBY WAVES ; R-MODES ; OSCILLATIONS ; ROTATION
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
WOS记录号	WOS:000485147000009
资助机构	NASA ; NASA ; ONR ; ONR ; NSF ; NSF ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Collaborating Research Program of CAS Key Laboratory of Solar Activity ; Collaborating Research Program of CAS Key Laboratory of Solar Activity ; Education Department of Sichuan province ; Education Department of Sichuan province ; Key Laboratory of Dark Matter and Space Astronomy ; Key Laboratory of Dark Matter and Space Astronomy ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Mount Wilson Institute ; Mount Wilson Institute ; NASA ; NASA ; ONR ; ONR ; NSF ; NSF ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Collaborating Research Program of CAS Key Laboratory of Solar Activity ; Collaborating Research Program of CAS Key Laboratory of Solar Activity ; Education Department of Sichuan province ; Education Department of Sichuan province ; Key Laboratory of Dark Matter and Space Astronomy ; Key Laboratory of Dark Matter and Space Astronomy ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Mount Wilson Institute ; Mount Wilson Institute ; NASA ; NASA ; ONR ; ONR ; NSF ; NSF ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Collaborating Research Program of CAS Key Laboratory of Solar Activity ; Collaborating Research Program of CAS Key Laboratory of Solar Activity ; Education Department of Sichuan province ; Education Department of Sichuan province ; Key Laboratory of Dark Matter and Space Astronomy ; Key Laboratory of Dark Matter and Space Astronomy ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Mount Wilson Institute ; Mount Wilson Institute ; NASA ; NASA ; ONR ; ONR ; NSF ; NSF ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Collaborating Research Program of CAS Key Laboratory of Solar Activity ; Collaborating Research Program of CAS Key Laboratory of Solar Activity ; Education Department of Sichuan province ; Education Department of Sichuan province ; Key Laboratory of Dark Matter and Space Astronomy ; Key Laboratory of Dark Matter and Space Astronomy ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Mount Wilson Institute ; Mount Wilson Institute
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/27677]
专题	中国科学院国家天文台
通讯作者	Xiang, Nan-Bin
作者单位	1.Chinese Acad Sci, Yunnan Observ, Kunming 650011, Yunnan, Peoples R China 2.Natl Astron Observ, CAS Key Lab Solar Act, Beijing 100101, Peoples R China 3.Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210008, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Xiang, Nan-Bin. Systematic investigation of mid-term periodicity of the solar full-disk magnetic fields[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2019,19(9):12.
APA	Xiang, Nan-Bin.(2019).Systematic investigation of mid-term periodicity of the solar full-disk magnetic fields.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,19(9),12.
MLA	Xiang, Nan-Bin."Systematic investigation of mid-term periodicity of the solar full-disk magnetic fields".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 19.9(2019):12.