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ON THE VARIATION OF SOLAR RADIUS IN ROTATION CYCLES
Qu ZN(屈智宁)1,2,3; Kong DF(孔德芳)1,2,3; Xiang NB(向南彬)1,2,3; Feng, W4,5; Qu, ZN (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Yunnan, Peoples R China.
发表期刊ASTROPHYSICAL JOURNAL
2015-01-10
卷号798期号:2页码:113-119
DOI10.1088/0004-637X/798/2/113
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收录类别SCI
关键词Sun: Fundamental Parameters Sun: Magnetic Fields Sun: Rotation
摘要The Date Compensated Discrete Fourier Transform and CLEANest algorithm are used to study the temporal variations of the solar radius observed at Rio de Janeiro Observatory from 1998 March 2 to 2009 November 6. The CLEANest spectra show several significant periodicities around 400, 312, 93.5, 86.2, 79.4, 70.9, 53.2, and 26.3 days. Then, combining the data on the daily solar radius measured at Calern Observatory and Rio de Janeiro Observatory and the corresponding daily sunspot areas, we study the short-term periodicity of the solar radius and the role of magnetic field in the variation of the solar radius. The rotation period of the daily solar radius is determined to be statistically significant. Moreover, its temporal evolution is anti-phase with that of sunspot activity, and it is found anti-phase with solar activity. Generally, the stronger solar activity is, the more obvious is the anti-phase relation of radius with solar activity. This indicates that strong magnetic fields have a greater inhibitive effect than weak magnetic fields on the variation of the radius.
项目资助者National Natural Science Foundation of China [11221063, 11273057] ; 973 programs [2012CB957801, 2011CB811406] ; Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University)
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0004-637X
URL查看原文
归档日期2015-01-09
WOS记录号WOS:000350853700048
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]DIAMETER MEASUREMENTS ; DIFFERENTIAL ROTATION ; TERM PERIODICITIES ; CONVECTION ZONE ; SUNSPOT NUMBERS ; CALERN SITE ; ASTROLABE ; CONSTANCY ; DYNAMO ; SUN
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被引频次:3[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/114a53/6275
专题太阳物理研究组
通讯作者Qu, ZN (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Yunnan, Peoples R China.
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, Kunming, Yunnan 650011, China
2.University of Chinese Academy of Sciences, Beijing 100049, China
3.Key Laboratory of Solar Activity, National Astronomical Observatories, CAS, Beijing 100012, China
4.Research Center of Analysis and Measurement, Kunming University of Science and Technology, Kunming 650093, China
5.Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University) Ministry of Education, Nanjing 210093, China
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GB/T 7714
Qu ZN,Kong DF,Xiang NB,et al. ON THE VARIATION OF SOLAR RADIUS IN ROTATION CYCLES[J]. ASTROPHYSICAL JOURNAL,2015,798(2):113-119.
APA Qu ZN,Kong DF,Xiang NB,Feng, W,&Qu, ZN .(2015).ON THE VARIATION OF SOLAR RADIUS IN ROTATION CYCLES.ASTROPHYSICAL JOURNAL,798(2),113-119.
MLA Qu ZN,et al."ON THE VARIATION OF SOLAR RADIUS IN ROTATION CYCLES".ASTROPHYSICAL JOURNAL 798.2(2015):113-119.
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