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Spatial distribution of quasi-biennial oscillations in high-latitude solar activity
Deng LH(邓林华)1,3,5; Fei, Y.4; Deng, H.2; Mei, Y.2,5; Wang F(王锋)1,2
通讯作者Wang, F.(fengwang@gzhu.edu.cn)
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2020-06-01
卷号494期号:4页码:4930-4938
DOI10.1093/mnras/staa1061
产权排序第1完成单位
收录类别SCI ; EI
关键词Sun: activity Sun: faculae, plages Sun: oscillations
摘要

Quasi-biennial oscillations (QBOs) are considered to be a fundamental mode of solarmagnetic activity at low latitudes (<= 50 degrees). However, the evolutionary aspect and the hemispheric distribution of solar QBOs at high latitudes (>= 60 degrees) are rarely studied. Here, we apply a relatively novel time-frequency analysis technique, called the synchrosqueezed wavelet transform, in order to extract the main components of the polar faculae in the Northern and Southern hemispheres for the time interval from 1951 August to 1998 December. We note the following. (i) Apart from the 22-yr Hale cycle, the 17-yr extended activity cycle and the 11-yr Schwabe cycle, QBOs have been estimated as a prominent time-scale of solar magnetic activity at high latitudes. (ii) The QBOs of the polar faculae are coherent in the two hemispheres, but the temporal (phase) and the spatial (amplitude) variations of solar QBOs occur unevenly on both hemispheres. (iii) For the 11-yr period mode, this begins in the Northern hemisphere three months earlier than in the Southern hemisphere. Moreover, the spatial and temporal distributions of the hemispheric QBOs differ from those of the 11-yr Schwabe cycle mode in the two hemispheres. Our findings could be helpful to improve our knowledge of the physical origin of the spatial distribution of solar QBOs at high latitudes, and could also provide more constraints on solar dynamo models introduced to characterize the different components of the solar magnetic activity cycle.

资助项目National Key Research and Development Program of China[2018YFA0404603] ; National Natural Science Foundation of China (NSFC)[U1631129] ; National Natural Science Foundation of China (NSFC)[U1831204] ; National Natural Science Foundation of China (NSFC)[U1931141] ; Chinese Academy of Sciences (CAS)[U1631129] ; Chinese Academy of Sciences (CAS)[U1831204] ; Chinese Academy of Sciences (CAS)[U1931141] ; National Natural Science Foundation ofChina[11873089] ; National Natural Science Foundation ofChina[11903009] ; National Natural Science Foundation ofChina[11971421] ; National Natural Science Foundation ofChina[11961141001] ; Youth Innovation Promotion Association CAS ; Yunnan Key Research and Development Program[2018IA054] ; open research programme of CAS Key Laboratory of Solar Activity[KLSA202002] ; open research programme of CAS Key Laboratory of Solar Activity[KLSA202016] ; major scientific research project of Guangdong regular institutions of higher learning[2017KZDXM062]
项目资助者National Key Research and Development Program of China[2018YFA0404603] ; National Natural Science Foundation of China (NSFC)[U1631129, U1831204, U1931141] ; Chinese Academy of Sciences (CAS)[U1631129, U1831204, U1931141] ; National Natural Science Foundation ofChina[11873089, 11903009, 11971421, 11961141001] ; Youth Innovation Promotion Association CAS ; Yunnan Key Research and Development Program[2018IA054] ; open research programme of CAS Key Laboratory of Solar Activity[KLSA202002, KLSA202016] ; major scientific research project of Guangdong regular institutions of higher learning[2017KZDXM062]
语种英语
学科领域天文学 ; 太阳与太阳系 ; 太阳物理学
学科门类理学 ; 理学::天文学
文章类型Article
出版者OXFORD UNIV PRESS
出版地GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
ISSN0035-8711
URL查看原文
WOS记录号WOS:000539097800027
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]NORTH-SOUTH ASYMMETRY ; MAGNETIC-FIELD ; ACTIVITY CYCLE ; PERIODIC BEHAVIOR ; NEUTRINO FLUX ; WIND ; ROTATION ; SUN ; FLUCTUATIONS ; INTENSITY
EI入藏号20221712024713
EI主题词Spatial distribution
EI分类号405.3 Surveying - 601.1 Mechanical Devices - 657.1 Solar Energy and Phenomena - 701.2 Magnetism: Basic Concepts and Phenomena - 902.1 Engineering Graphics - 921 Mathematics - 921.3 Mathematical Transformations
引用统计
被引频次:11[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/23466
专题抚仙湖太阳观测和研究基地
其他
通讯作者Wang F(王锋)
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, P.R. China
2.Guangzhou Univ, Ctr Astrophys, Guangzhou 510006, Peoples R China
3.Chongqing University of Arts and Sciences, Chongqing 402160, China
4.School of Statistics and Mathematics, Yunnan University of Finance and Economics, Kunming 650221, China
5.CAS Key Laboratory of Solar Activity, National Astronomical Observatories, Beijing 100012, China
第一作者单位中国科学院云南天文台
通讯作者单位中国科学院云南天文台
推荐引用方式
GB/T 7714
Deng LH,Fei, Y.,Deng, H.,et al. Spatial distribution of quasi-biennial oscillations in high-latitude solar activity[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2020,494(4):4930-4938.
APA Deng LH,Fei, Y.,Deng, H.,Mei, Y.,&Wang F.(2020).Spatial distribution of quasi-biennial oscillations in high-latitude solar activity.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,494(4),4930-4938.
MLA Deng LH,et al."Spatial distribution of quasi-biennial oscillations in high-latitude solar activity".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 494.4(2020):4930-4938.
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