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PERIODICITY OF THE SOLAR FULL-DISK MAGNETIC FIELDS
Xiang NB(向南彬)1,2,3; Qu ZN(屈智宁)1,2,4; Zhai Q(翟倩)1,2; Xiang, NB (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
发表期刊ASTRONOMICAL JOURNAL
2014-07
卷号148期号:1页码:12-
DOI10.1088/0004-6256/148/1/12
产权排序第1完成单位
收录类别SCI
关键词Sun: Activity Sun: Magnetic Fields Sun: Rotation
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.
项目资助者NASA, ONR, and NSF, under agreement with the Mount Wilson Institute ; National Natural Science Foundation of China [11273057, 11221063] ; 973 programs
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2014-06-10
WOS记录号WOS:000338405900012
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]DIFFERENTIAL ROTATION ; MOUNT-WILSON ; SUNSPOT NUMBERS ; POLAR FACULAE ; CYCLE ; INDEXES ; CHINA ; SUN
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被引频次:19[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/114a53/6247
专题太阳物理研究组
通讯作者Xiang, NB (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
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
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GB/T 7714
Xiang NB,Qu ZN,Zhai Q,et al. PERIODICITY OF THE SOLAR FULL-DISK MAGNETIC FIELDS[J]. ASTRONOMICAL JOURNAL,2014,148(1):12-.
APA Xiang NB,Qu ZN,Zhai Q,&Xiang, NB .(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-.
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