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REGULARITY OF THE NORTH-SOUTH ASYMMETRY OF SOLAR ACTIVITY: REVISITED
Zhang J(张娟)1,2,3; Feng, W4,5
Source PublicationASTRONOMICAL JOURNAL
2015-09
Volume150Issue:3
DOI10.1088/0004-6256/150/3/74
Contribution Rank第1完成单位
Indexed BySCI
KeywordMethods: Data Analysis Sun: Activity Sun: General Sunspots
Abstract

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.

Funding ProjectNational Natural Science Foundation of China[11221063] ; National Natural Science Foundation of China[11273057] ; 973 programs[2012CB957801] ; 973 programs[2011CB811406] ; Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University)
Funding OrganizationNational Natural Science Foundation of China[11221063, 11273057] ; 973 programs[2012CB957801, 2011CB811406] ; Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University)
Language英语
Subject Area天文学 ; 太阳与太阳系
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherIOP PUBLISHING LTD
Publication PlaceTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0004-6256
URL查看原文
Archive Date2015-11-10
WOS IDWOS:000364008100010
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordN-S ASYMMETRY ; LONG-TERM VARIATION ; NUMBERS R-N ; SUNSPOT NUMBERS ; STATISTICAL-ANALYSIS ; MAGNETIC-FIELD ; FLARE INDEX ; DYNAMO ; AREAS ; CYCLE
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6264
Collection太阳物理研究组
Corresponding AuthorZhang J(张娟)
Affiliation1.Yunnan Observatories, CAS, Kunming 650011, China
2.University of Chinese Academy of Sciences, Beijing 100049, China
3.Key Laboratory of Solar Activity, National Astronomical Observatories, CAS, Beijing 100012, China
4.Research Center of Analysis and Measurement, Kunming University of Science and Technology, Kunming 650093, China
5.Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University) Ministry of Education, Nanjing 210093, China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
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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