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ROTATION RATE DIFFERENCES OF POSITIVE AND NEGATIVE SOLAR MAGNETIC FIELDS BETWEEN +/- 60 degrees LATITUDES
Shi XJ(石祥军)1,2,3; Xie JL(谢婧岚)1,2; Shi, XJ (reprint author), Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China
发表期刊ASTRONOMICAL JOURNAL
2015-04-01
卷号149期号:4
DOI10.1088/0004-6256/149/4/126
产权排序第1完成单位
收录类别SCI
关键词Methods: Data Analysis Sun: Magnetic Fields Sun: Rotation
摘要Based on a cross-correlation analysis of the Carrington synoptic maps of solar photospheric magnetic fields from Carrington Rotations Nos. 1625 to 2135 (from 1975 February to 2013 March), the sidereal rotation rates of the positive and negative magnetic fields in the latitude range of +/- 60 degrees are obtained, and the rotation rate differences between them are investigated. The time-latitude distribution of the rate differences is shown, which looks like a butterfly diagram at the low and middle latitudes. For comparison, the time-latitude distribution of the longitudinally averaged photospheric magnetic fields is shown. We conclude that the magnetic fields having the same polarity as the leading sunspots at a given hemisphere rotate faster than those exhibiting the opposite polarity at low and middle latitudes. However, at higher latitudes, the magnetic fields having the same polarity as the leading sunspots at a given hemisphere do not always rotate faster than those with the opposite polarity. Furthermore, the relationship between the rotation rate differences and solar magnetic fields is studied through a correlation analysis. Our result shows that the correlation coefficients between them reach maximum values at 13 degrees (14 degrees) latitude in the northern (southern) hemisphere, and change sign at 28 degrees latitude in both hemispheres, then reach their minimum values at 58 degrees (53 degrees) latitude in the northern (southern) hemisphere.
项目资助者973 programs (2012CB957801, 2011CB811406) ; National Natural Science Foundation of China (11273057, 11203068, 11221063) ; Applied Basic Research of Yunnan Province in China grant (2014FB190) ; Chinese Academy of Sciences
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0004-6256
URL查看原文
归档日期2015-03-12
WOS记录号WOS:000352336800010
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]MICHELSON DOPPLER IMAGER ; CONVECTION ZONE ; ACTIVE REGIONS ; SUNSPOT GROUPS ; TEMPORAL VARIATIONS ; MERIDIONAL DRIFT ; CYCLES 20 ; PATTERN ; DYNAMO ; FLOWS
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被引频次:2[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/114a53/6271
专题太阳物理研究组
通讯作者Shi, XJ (reprint author), Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, 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
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Shi XJ,Xie JL,Shi, XJ . ROTATION RATE DIFFERENCES OF POSITIVE AND NEGATIVE SOLAR MAGNETIC FIELDS BETWEEN +/- 60 degrees LATITUDES[J]. ASTRONOMICAL JOURNAL,2015,149(4).
APA Shi XJ,Xie JL,&Shi, XJ .(2015).ROTATION RATE DIFFERENCES OF POSITIVE AND NEGATIVE SOLAR MAGNETIC FIELDS BETWEEN +/- 60 degrees LATITUDES.ASTRONOMICAL JOURNAL,149(4).
MLA Shi XJ,et al."ROTATION RATE DIFFERENCES OF POSITIVE AND NEGATIVE SOLAR MAGNETIC FIELDS BETWEEN +/- 60 degrees LATITUDES".ASTRONOMICAL JOURNAL 149.4(2015).
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