ROTATION OF SOLAR MAGNETIC FIELDS FOR THE CURRENT SOLAR CYCLE 24
文献类型：期刊论文
| 作者 | Shi XJ(石祥军)1,2,3 ; Xie JL(谢婧岚)1,2
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| 刊名 | ASTRONOMICAL JOURNAL
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| 出版日期 | 2014-11 |
| 卷号 | 148期号:5 |
| ISSN号 | 0004-6256 |
| 关键词 | methods: data analysis Sun: magnetic fields Sun: rotation |
| 通讯作者 | Shi, XJ (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China. |
| 产权排序 | 第一完成单位 |
| 英文摘要 | The rotation of solar magnetic fields for the current solar cycle 24 is investigated through a cross-correlation analysis of the Carrington synoptic maps of solar photospheric magnetic fields during Carrington rotation numbers 2076-2146 (2008 October to 2014 January). The sidereal rotation rates of positive and negative magnetic fields at some latitudes are shown, and it can be found that the positive (negative) fields generally rotate faster than the negative (positive) fields in the southern (northern) hemisphere at low latitudes. The mean rotation profiles of total, positive, and negative magnetic fields between +/- 60 degrees latitudes in the time interval are also obtained. It should be noted that both of the mean rotation profiles of the positive and negative magnetic fields, as well as the mean rotation profile of the total magnetic field, exhibit a quasi-rigid rotation at latitudes above about 55 degrees. The mean rotation rates of the positive (negative) polarity reach their maximum values at about 9 degrees(6)degrees latitude in the southern (northern) hemisphere. The mean rotation profile of the total magnetic field displays an obvious north-south asymmetry, where the rotation seems to be more differential in the northern hemisphere. The latitude variation in the rotation rate differences between positive and negative magnetic fields is further studied, and it is found that magnetic fields with the same polarity as the leading sunspots at a given hemisphere rotate faster than those with the opposite polarity, except for the zones around 52 degrees latitude of the southern hemisphere and around 35 degrees latitude of the northern hemisphere. The implication of these results is discussed. It is clear that the obtained results can provide some observational constraints on the theoretical research of the mechanisms of differential rotation and solar cycle. |
| 学科主题 | Astronomy & Astrophysics |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | FLUX-TRANSPORT DYNAMO ; RECURRENT SUNSPOT GROUPS ; NORTH-SOUTH ASYMMETRY ; LONG-TERM VARIATIONS ; DIFFERENTIAL ROTATION ; MERIDIONAL CIRCULATION ; HEMISPHERIC-ASYMMETRY ; CORONAL ROTATION ; CONVECTION ; PATTERNS |
| 收录类别 | SCI |
| 原文出处 | http://iopscience.iop.org/article/10.1088/0004-6256/148/5/101/meta |
| 语种 | 英语 |
| WOS记录号 | WOS:000344141200027 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/6240]  |
| 专题 | 云南天文台_太阳物理研究组 |
| 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 |
| 推荐引用方式 GB/T 7714 | Shi XJ,Xie JL. ROTATION OF SOLAR MAGNETIC FIELDS FOR THE CURRENT SOLAR CYCLE 24[J]. ASTRONOMICAL JOURNAL,2014,148(5). |
| APA | Shi XJ,&Xie JL.(2014).ROTATION OF SOLAR MAGNETIC FIELDS FOR THE CURRENT SOLAR CYCLE 24.ASTRONOMICAL JOURNAL,148(5). |
| MLA | Shi XJ,et al."ROTATION OF SOLAR MAGNETIC FIELDS FOR THE CURRENT SOLAR CYCLE 24".ASTRONOMICAL JOURNAL 148.5(2014). |
入库方式： OAI收割
来源：云南天文台
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