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The north-south asymmetry of solar activity at high latitudes
Li KJ(李可军)1; Gao PX(高朋鑫)1,2; Zhan, LS3; Shi XJ(石祥军)1,2; Zhu WW(朱玮文)1,2; Li, KJ (reprint author), CAS, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2009-03-21
Volume394Issue:1Pages:231-238
DOI10.1111/j.1365-2966.2008.14172.x
Contribution Rank第1完成单位
Indexed BySCI
KeywordSun: Activity Sun: General Sun: Magnetic Field
AbstractSolar long-term activity runs at high latitudes in three ways: (i) in phase with solar long-term activity at low latitudes; (ii) in antiphase with solar long-term activity at low latitudes and (iii) does not follow either (i) or (ii), and mainly occurs around the times of maxima of (i) and (ii). In the present study, we investigate the north-south asymmetry of solar activity at high latitudes and found the following. In Case (i), high-latitude filament activity, for example, is inferred to have the same dominant hemisphere as low-latitude activity in a cycle. In Case (ii), the north-south asymmetry of high-latitude activity, represented by both the polar faculae and the Sun's polar field strength, is usually different from that of low-latitude activity in a sunspot cycle, and even in a cycle of high-latitude activity (polar faculae and the Sun's polar field strength), suggesting that the north-south asymmetry of solar activity at high latitudes should have little or no connection with that of low latitudes. In Case (iii), the north-south asymmetry of solar activity at high latitudes (polar flares) should have little connection with that at low latitudes as well. The observed magnetic field at high latitudes is inferred to consist of two components: one comes from the emergence of the magnetic field from the Sun's interior and the other comes from the drift of the magnetic activity at low latitudes.
Funding OrganizationNatural Science Funds of China [40636031, 10873032, 10573034] ; Chinese Academy of Sciences [2006CB806300]
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0035-8711
URL查看原文
Archive Date2009-03-17
WOS IDWOS:000263967700019
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordN-S ASYMMETRY ; H-ALPHA FLARES ; NUMBERS R-N ; DIFFERENTIAL ROTATION ; STATISTICAL-ANALYSIS ; ACTIVITY CYCLES ; SUNSPOT GROUPS ; INDEX ; SOLAR-CYCLE-23 ; CATALOG
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Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6145
Collection太阳物理研究组
Corresponding AuthorLi, KJ (reprint author), CAS, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
Affiliation1.National Astronomical Observatories/Yunnan Observatory, CAS, Kunming 650011, China
2.School of Graduate, CAS, Beijing, China
3.Jingdezhen Ceramic Institute, Jingdezhan 333001, Jiangxi, China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Li KJ,Gao PX,Zhan, LS,et al. The north-south asymmetry of solar activity at high latitudes[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2009,394(1):231-238.
APA Li KJ,Gao PX,Zhan, LS,Shi XJ,Zhu WW,&Li, KJ .(2009).The north-south asymmetry of solar activity at high latitudes.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,394(1),231-238.
MLA Li KJ,et al."The north-south asymmetry of solar activity at high latitudes".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 394.1(2009):231-238.
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