PERIODICITY OF THE SOLAR FULL-DISK MAGNETIC FIELDS
文献类型：期刊论文
| 作者 | Xiang NB(向南彬)1,2,3 ; Qu ZN(屈智宁)1,2,4; Zhai Q(翟倩)1,2
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| 刊名 | ASTRONOMICAL JOURNAL
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| 出版日期 | 2014-07 |
| 卷号 | 148期号:1页码:12- |
| 关键词 | Sun: activity Sun: magnetic fields Sun: rotation |
| ISSN号 | 0004-6256 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Xiang, NB (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China. |
| 英文摘要 | A full-disk solar magnetogram has been measured each day since 1970 January 19, and the daily Magnetic Plage Strength Index (MPSI) and the daily Mount Wilson Sunspot Index (MWSI) were calculated for each magnetograrn. at the Mount Wilson Observatory. The MPSI and MWSI are used to investigate the periodicity of the solar full-disk magnetic activity through autocorrelation analyses. Just two periods, the solar cycle and the rotation cycle, are determined in both the MPSI (the solar full-disk weak magnetic field activity) and MWSI (the solar full-disk strong magnetic field activity) with no annual signal found. The solar cycle for MPSI (10.83 yr) is found to be obviously longer than that for MW SI (9.77 yr). The rotation cycle is determined to be 26.8 0.63 sidereal days for MPSI and 27.4 2.4 sidereal days for MWSI. The rotation cycle length for MPSI is found to fluctuate around 27 days within a very small amplitude, but for MWSI it obviously temporally varies with a rather large amplitude. The rotation cycle for MWSI seems longer near solar minimum than at solar maximum. Cross-correlation analyses of daily MPSI and MWSI are carried out, and it is inferred that the MPSI components partly come from relatively early MWSI measurements. |
| 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] | DIFFERENTIAL ROTATION ; MOUNT-WILSON ; SUNSPOT NUMBERS ; POLAR FACULAE ; CYCLE ; INDEXES ; CHINA ; SUN |
| 收录类别 | SCI |
| 原文出处 | http://iopscience.iop.org/article/10.1088/0004-6256/148/1/12/meta |
| 语种 | 英语 |
| WOS记录号 | WOS:000338405900012 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/6247]  |
| 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.Graduate School of CAS, Beijing 100863, China 3.Key Laboratory of Solar Activity, National Astronomical Observatories, CAS, Beijing 100012, China 4.Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education, Nanjing 210093, China |
| 推荐引用方式 GB/T 7714 | Xiang NB,Qu ZN,Zhai Q. PERIODICITY OF THE SOLAR FULL-DISK MAGNETIC FIELDS[J]. ASTRONOMICAL JOURNAL,2014,148(1):12-. |
| APA | Xiang NB,Qu ZN,&Zhai Q.(2014).PERIODICITY OF THE SOLAR FULL-DISK MAGNETIC FIELDS.ASTRONOMICAL JOURNAL,148(1),12-. |
| MLA | Xiang NB,et al."PERIODICITY OF THE SOLAR FULL-DISK MAGNETIC FIELDS".ASTRONOMICAL JOURNAL 148.1(2014):12-. |
入库方式： OAI收割
来源：云南天文台
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