Solar-cycle-related variation of solar differential rotation | |
Li KJ(李可军)1,2; Shi XJ(石祥军)1,3; Xie JL(谢婧岚)1,3; Gao PX(高朋鑫)1; Liang, HF4; Zhan, LS5; Feng, W6 | |
发表期刊 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY |
2013-07 | |
卷号 | 433期号:1页码:521-527 |
DOI | 10.1093/mnras/stt744 |
产权排序 | 第1完成单位 |
收录类别 | SCI |
关键词 | Sun: Activity Sun: Rotation Sun: Surface Magnetism |
摘要 | Solar-cycle-related variation of differential rotation is investigated through analysing the rotation rates of magnetic fields, distributed along latitudes and varying with time at the time interval of 1976 August to 2008 April. More pronounced differentiation of rotation rates is found to appear at the ascending part of a Schwabe cycle than at the descending part on an average. The coefficient B in the standard form of differential rotation, which represents the latitudinal gradient of rotation, may be divided into three parts within a Schwabe cycle. Part 1 spans from the start to the fourth year of a Schwabe cycle, within which the absolute B is approximately a constant or slightly fluctuates. Part 2 spans from the fourth to the seventh year, within which the absolute B decreases. Part 3 spans from the seventh year to the end, within which the absolute B increases. Strong magnetic fields repress differentiation of rotation rates, so that rotation rates show less pronounced differentiation, but weak magnetic fields seem to just reflect differentiation of rotation rates. The solar-cycle-related variation of solar differential rotation is inferred to be the result of both the latitudinal migration of the surface torsional pattern and the repression of the strong magnetic activity to differentiation of rotation rates. The north-south asymmetry in solar rotation is investigated as well, and the Northern hemisphere should rotate faster than the southern in cycles 21-23. |
资助项目 | NSFC[11273057] ; NSFC[10921303] ; NSFC[11147125] ; NSFC[11073010] ; National Basic Research Program of China[2011CB811406] ; National Basic Research Program of China[2012CB957801] ; Chinese Academy of Sciences |
项目资助者 | NSFC[11273057, 10921303, 11147125, 11073010] ; National Basic Research Program of China[2011CB811406, 2012CB957801] ; Chinese Academy of Sciences |
语种 | 英语 |
学科领域 | 天文学 ; 太阳与太阳系 |
文章类型 | Article |
出版者 | OXFORD UNIV PRESS |
出版地 | GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND |
ISSN | 0035-8711 |
URL | 查看原文 |
归档日期 | 2013-07-10 |
WOS记录号 | WOS:000321461200042 |
WOS研究方向 | Astronomy & Astrophysics |
WOS类目 | Astronomy & Astrophysics |
关键词[WOS] | TORSIONAL OSCILLATIONS ; TEMPORAL VARIATIONS ; CORONAL ROTATION ; CONVECTION ZONE ; SUNSPOT GROUPS ; MAGNETIC-FLUX ; MOUNT WILSON ; SUN ; PERIODICITIES ; ASYMMETRY |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ynao.ac.cn/handle/114a53/6228 |
专题 | 太阳物理研究组 |
通讯作者 | Li KJ(李可军) |
作者单位 | 1.National Astronomical Observatories/Yunnan Observatory, CAS, Kunming 650011, China 2.Key Laboratory of Solar Activity, National Astronomical Observatories, CAS, Beijing 100012, China 3.Graduate School of CAS, Beijing 100863, China 4.Department of Physics, Yunnan Normal University, Kunming 650093, China 5.Jingdezhen Ceramic Institute, Jingdezhen 333001, Jiangxi, China 6.Research Center of Analysis and Measurement, Kunming University of Science and Technology, Kunming 650093, 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 | Li KJ,Shi XJ,Xie JL,et al. Solar-cycle-related variation of solar differential rotation[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2013,433(1):521-527. |
APA | Li KJ.,Shi XJ.,Xie JL.,Gao PX.,Liang, HF.,...&Feng, W.(2013).Solar-cycle-related variation of solar differential rotation.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,433(1),521-527. |
MLA | Li KJ,et al."Solar-cycle-related variation of solar differential rotation".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 433.1(2013):521-527. |
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