ROTATION RATE DIFFERENCES OF POSITIVE AND NEGATIVE SOLAR MAGNETIC FIELDS BETWEEN +/- 60 degrees LATITUDES
文献类型：期刊论文
| 作者 | Shi, X. J.1,2,3; Xie, J. L.1,2; Shi XJ(石祥军) ; Xie JL(谢婧岚)
|
| 刊名 | ASTRONOMICAL JOURNAL
 |
| 出版日期 | 2015-04-01 |
| 卷号 | 149期号:4 |
| ISSN号 | 0004-6256 |
| 关键词 | methods: data analysis Sun: magnetic fields Sun: rotation |
| 通讯作者 | Shi, XJ (reprint author), Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China |
| 产权排序 | 第一完成单位 |
| 英文摘要 | 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. |
| 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] | MICHELSON DOPPLER IMAGER ; CONVECTION ZONE ; ACTIVE REGIONS ; SUNSPOT GROUPS ; TEMPORAL VARIATIONS ; MERIDIONAL DRIFT ; CYCLES 20 ; PATTERN ; DYNAMO ; FLOWS |
| 收录类别 | SCI |
| 原文出处 | http://iopscience.iop.org/article/10.1088/0004-6256/149/4/126/meta |
| 语种 | 英语 |
| WOS记录号 | WOS:000352336800010 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/6271]  |
| 专题 | 云南天文台_太阳物理研究组 |
| 通讯作者 | Shi XJ(石祥军) |
| 作者单位 | 1.Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shi, X. J.,Xie, J. L.,Shi XJ,et al. ROTATION RATE DIFFERENCES OF POSITIVE AND NEGATIVE SOLAR MAGNETIC FIELDS BETWEEN +/- 60 degrees LATITUDES[J]. ASTRONOMICAL JOURNAL,2015,149(4). |
| APA | Shi, X. J.,Xie, J. L.,Shi XJ,&Xie JL.(2015).ROTATION RATE DIFFERENCES OF POSITIVE AND NEGATIVE SOLAR MAGNETIC FIELDS BETWEEN +/- 60 degrees LATITUDES.ASTRONOMICAL JOURNAL,149(4). |
| MLA | Shi, X. J.,et al."ROTATION RATE DIFFERENCES OF POSITIVE AND NEGATIVE SOLAR MAGNETIC FIELDS BETWEEN +/- 60 degrees LATITUDES".ASTRONOMICAL JOURNAL 149.4(2015). |
入库方式： OAI收割
来源：云南天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。