中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
INTERNAL-CYCLE VARIATION OF SOLAR DIFFERENTIAL ROTATION

文献类型:期刊论文

作者Li KJ(李可军)1,2; Xie JL(谢婧岚)1,3; Shi XJ(石祥军)1,3
刊名ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
出版日期2013-06
卷号206期号:2页码:1-6
关键词Sun: activity Sun: rotation sunspots
ISSN号0067-0049
产权排序第一完成单位
通讯作者Li, KJ (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
英文摘要The latitudinal distributions of the yearly mean rotation rates measured by Suzuki in 1998 and 2012 and Pulkkinen & Tuominen in 1998 are utilized to investigate internal-cycle variation of solar differential rotation. The rotation rate at the solar equator seems to have decreased since cycle 10 onward. The coefficient B of solar differential rotation, which represents the latitudinal gradient of rotation, is found to be smaller in the several years after the minimum of a solar cycle than in the several years after the maximum time of the cycle, and it peaks several years after the maximum time of the solar cycle. The internal-cycle variation of the solar rotation rates looks similar in profile to that of the coefficient B. A new explanation is proposed to address such a solar-cycle-related variation of the solar rotation rates. Weak magnetic fields may more effectively reflect differentiation at low latitudes with high rotation rates than at high latitudes with low rotation rates, and strong magnetic fields may more effectively repress differentiation at relatively low latitudes than at high latitudes. The internal-cycle variation is inferred as the result of both the latitudinal migration of the surface torsional pattern and the repression of strong magnetic activity in differentiation.
WOS标题词Science & Technology ; Physical Sciences
学科主题Astronomy & Astrophysics
类目[WOS]Astronomy & Astrophysics
研究领域[WOS]Astronomy & Astrophysics
关键词[WOS]LONG-TERM VARIATIONS ; SUNSPOT GROUPS ; TORSIONAL OSCILLATIONS ; TEMPORAL VARIATIONS ; MERIDIONAL MOTIONS ; CORONAL ROTATION ; CONVECTION ZONE ; MOUNT WILSON ; SUN ; VELOCITY
收录类别SCI
原文出处http://iopscience.iop.org/article/10.1088/0067-0049/206/2/15/meta
语种英语
WOS记录号WOS:000325654800006
源URL[http://ir.ynao.ac.cn/handle/114a53/6229]  
专题云南天文台_太阳物理研究组
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
推荐引用方式
GB/T 7714
Li KJ,Xie JL,Shi XJ. INTERNAL-CYCLE VARIATION OF SOLAR DIFFERENTIAL ROTATION[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2013,206(2):1-6.
APA Li KJ,Xie JL,&Shi XJ.(2013).INTERNAL-CYCLE VARIATION OF SOLAR DIFFERENTIAL ROTATION.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,206(2),1-6.
MLA Li KJ,et al."INTERNAL-CYCLE VARIATION OF SOLAR DIFFERENTIAL ROTATION".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 206.2(2013):1-6.

入库方式: OAI收割

来源:云南天文台

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