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REGULARITY OF THE NORTH-SOUTH ASYMMETRY OF SOLAR ACTIVITY: REVISITED
Zhang, J.1,2,3; Feng, W.4,5
2015-09-01
发表期刊ASTRONOMICAL JOURNAL
卷号150期号:3
摘要Extended time series of Solar Activity Indices (ESAI) extended the Greenwich series of sunspot area from the year 1874 back to 1821. The ESAI's yearly sunspot area in the northern and southern hemispheres from 1821 to 2013 is utilized to investigate characteristics of the north-south hemispherical asymmetry of sunspot activity. Periodical behavior of about 12 solar cycles is also confirmed from the ESAI data set to exist in dominant hemispheres, linear regression lines of yearly asymmetry values, and cumulative counts of yearly sunspot areas in the hemispheres for solar cycles. The period is also inferred to appear in both the cumulative difference in the yearly sunspot areas in the hemispheres over the entire time interval and in its statistical Student's t-test. The hemispherical bias of sunspot activity should be regarded as an impossible stochastic phenomenon over a long time period.
关键词Methods: Data Analysis Sun: Activity Sun: General Sunspots
DOI10.1088/0004-6256/150/3/74
收录类别SCI
语种英语
WOS记录号WOS:000364008100010
引用统计
文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/8904
专题光学天文研究部
作者单位1.Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China
4.Kunming Univ Sci & Technol, Res Ctr Anal & Measurement, Kunming 650093, Peoples R China
5.Nanjing Univ, Minist Educ, Key Lab Modern Astron & Astrophys, Nanjing 210093, Peoples R China
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Zhang, J.,Feng, W.. REGULARITY OF THE NORTH-SOUTH ASYMMETRY OF SOLAR ACTIVITY: REVISITED[J]. ASTRONOMICAL JOURNAL,2015,150(3).
APA Zhang, J.,&Feng, W..(2015).REGULARITY OF THE NORTH-SOUTH ASYMMETRY OF SOLAR ACTIVITY: REVISITED.ASTRONOMICAL JOURNAL,150(3).
MLA Zhang, J.,et al."REGULARITY OF THE NORTH-SOUTH ASYMMETRY OF SOLAR ACTIVITY: REVISITED".ASTRONOMICAL JOURNAL 150.3(2015).
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