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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.
Source PublicationASTRONOMICAL JOURNAL
2014-07
Volume148Issue:1Pages:12-
DOI10.1088/0004-6256/148/1/12
Contribution Rank第1完成单位
Indexed BySCI
KeywordSun: Activity Sun: Magnetic Fields Sun: Rotation
Abstract

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.

Funding ProjectNASA, ONR, and NSF, under agreement with the Mount Wilson Institute ; National Natural Science Foundation of China [11273057] ; National Natural Science Foundation of China [11221063] ; 973 programs
Funding OrganizationNASA, ONR, and NSF, under agreement with the Mount Wilson Institute ; National Natural Science Foundation of China [11273057, 11221063] ; 973 programs
Language英语
Subject Area天文学 ; 太阳与太阳系 ; 太阳物理学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherIOP PUBLISHING LTD
Publication PlaceTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0004-6256
URL查看原文
Archive Date2014-06-10
WOS IDWOS:000338405900012
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordDIFFERENTIAL ROTATION ; MOUNT-WILSON ; SUNSPOT NUMBERS ; POLAR FACULAE ; CYCLE ; INDEXES ; CHINA ; SUN
Citation statistics
Cited Times:23[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6247
Collection太阳物理研究组
Corresponding AuthorXiang NB(向南彬)
Affiliation1.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
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
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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