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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.
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2009-03-21
卷号394期号:1页码:231-238
DOI10.1111/j.1365-2966.2008.14172.x
产权排序第1完成单位
收录类别SCI
关键词Sun: Activity Sun: General Sun: Magnetic Field
摘要Solar 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.
项目资助者Natural Science Funds of China [40636031, 10873032, 10573034] ; Chinese Academy of Sciences [2006CB806300]
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0035-8711
URL查看原文
归档日期2009-03-17
WOS记录号WOS:000263967700019
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]N-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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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/114a53/6145
专题太阳物理研究组
通讯作者Li, KJ (reprint author), CAS, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
作者单位1.National Astronomical Observatories/Yunnan Observatory, CAS, Kunming 650011, China
2.School of Graduate, CAS, Beijing, China
3.Jingdezhen Ceramic Institute, Jingdezhan 333001, Jiangxi, China
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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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