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Phase Relationship Between Sunspot Number, Flare Index and Solar Radio Flux
Yan XL(闫晓理)1,2; Deng LH(邓林华)1; Qu ZQ(屈中权)1; Xu, CL3; Kong DF(孔德芳)1; Yan, XL (reprint author), Chinese Acad Sci, Yunnan Astron Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
发表期刊JOURNAL OF ASTROPHYSICS AND ASTRONOMY
2012-12
卷号33期号:4页码:387-397
DOI10.1007/s12036-012-9153-5
产权排序第1完成单位
收录类别SCI
关键词Sun: Sunspot Flare Index Solar Radio Flux Solar Cycle
摘要To understand better the variation of solar activity indicators originated at different layers of the solar atmosphere with respect to sunspot cycles, we carried out a study of phase relationship between sunspot number, flare index and solar radio flux at 2800 MHz from January 1966 to May 2008 by using cross-correlation analysis. The main results are as follows: (1) The flare index and sunspot number have synchronous phase for cycles 21 and 22 in the northern hemisphere and for cycle 20 in the southern hemisphere. (2) The flare index has a noticeable time lead with respect to sunspot number for cycles 20 and 23 in the northern hemisphere and for cycles 22 and 23 in the southern hemisphere. (3) For the entire Sun, the flare index has a noticeable time lead for cycles 20 and 23, a time lag for cycle 21, and no time lag or time lead for cycle 22 with respect to sunspot number. (4) The solar radio flux has a time lag for cycles 22 and 23 and no time lag or time lead for cycles 20 and 21 with respect to sunspot number. (5) For the four cycles, the sunspot number and flare index in the northern hemisphere are all leading to the ones in the southern hemisphere. These results may be instructive to the physical processes of flare energy storage and dissipation.
项目资助者National Science Foundation of China (NSFC) [10903027, 11078005, 10943002] ; Yunnan Science Foundation of China [2009CD120] ; China's 973 project [G2011CB811400]
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0250-6335
URL查看原文
归档日期2012-12-28
WOS记录号WOS:000313608600004
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]ASYMMETRY ; CYCLE ; SOLAR-CYCLE-23 ; MODULATION ; POLARITY ; REGIONS ; SUN
引用统计
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/6186
专题太阳物理研究组
通讯作者Yan, XL (reprint author), Chinese Acad Sci, Yunnan Astron Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
作者单位1.National Astronomical Observatories/Yunnan Astronomical Observatory, Chinese Academy of Sciences, Kunming, 650011, China
2.Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing, 100012, China
3.School of Mathematics, Yunnan Normal University, Yunnan, Kunming, 650092, China
推荐引用方式
GB/T 7714
Yan XL,Deng LH,Qu ZQ,et al. Phase Relationship Between Sunspot Number, Flare Index and Solar Radio Flux[J]. JOURNAL OF ASTROPHYSICS AND ASTRONOMY,2012,33(4):387-397.
APA Yan XL,Deng LH,Qu ZQ,Xu, CL,Kong DF,&Yan, XL .(2012).Phase Relationship Between Sunspot Number, Flare Index and Solar Radio Flux.JOURNAL OF ASTROPHYSICS AND ASTRONOMY,33(4),387-397.
MLA Yan XL,et al."Phase Relationship Between Sunspot Number, Flare Index and Solar Radio Flux".JOURNAL OF ASTROPHYSICS AND ASTRONOMY 33.4(2012):387-397.
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