Long-term variations of the coronal rotation and solar activity
文献类型：期刊论文
| 作者 | Li KJ(李可军)1,2 ; Shi XJ(石祥军)1,3; Feng, W4; Xie, JL1,3; Gao PX(高朋鑫)1; Zhan, LS5; Liang, HF6
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| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| 出版日期 | 2012-07 |
| 卷号 | 423期号:4页码:3584-3588 |
| 关键词 | methods: data analysis Sun: activity Sun: corona Sun: rotation |
| ISSN号 | 0035-8711 |
| 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 | Recently, Chandra and Vats have obtained the yearly period length of the solar coronal rotation cycle by analysing the daily adjusted solar radio flux at the 10.7-cm wavelength for the years 19472009. In this paper, we use the time series (series I) of the yearly period length to investigate the long-term variation of the rotation of radio emission corona, and we find a weak decreasing trend in the time series. We use the empirical mode decomposition to decompose both the yearly mean value (series II) of the solar radio flux at the 10.7-cm wavelength and series I into different periodical components. There is a secular trend for each of the two series, and we find a negative correlation in the two trends. The decomposed 11-yr-cycle components of the two series show different and complicated periods and there is a phase relation between them. We investigate the cycle-related variation of the coronal rotation length, and we find that there is no Schwable cycle of statistical significance for the long-term variation of the rotation cycle length. |
| 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] | X-RAY CORONA ; DIFFERENTIAL ROTATION ; BRIGHT POINTS ; TIME-SERIES ; FE-XIV ; CYCLE ; PERIODICITIES ; RATES |
| 收录类别 | SCI |
| 原文出处 | http://mnras.oxfordjournals.org/content/423/4/3584 |
| 语种 | 英语 |
| WOS记录号 | WOS:000306003600044 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/6199]  |
| 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 the Chinese Academy of Sciences, Beijing, China 4.Research Center of Analysis and Measurement, Kunming University of Science and Technology, Kunming 650093, China 5.Jingdezhen Ceramic Institute, Jingdezhen 333001, Jiangxi, China 6.Department of Physics, Yunnan Normal University, Kunming 650093, China |
| 推荐引用方式 GB/T 7714 | Li KJ,Shi XJ,Feng, W,et al. Long-term variations of the coronal rotation and solar activity[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2012,423(4):3584-3588. |
| APA | Li KJ.,Shi XJ.,Feng, W.,Xie, JL.,Gao PX.,...&Liang, HF.(2012).Long-term variations of the coronal rotation and solar activity.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,423(4),3584-3588. |
| MLA | Li KJ,et al."Long-term variations of the coronal rotation and solar activity".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 423.4(2012):3584-3588. |
入库方式： OAI收割
来源：云南天文台
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