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On midrange periodicities in solar radio flux and sunspot areas
Mei Y(梅盈)1,2,3,4; Deng H(邓辉)1,2,3,4; Wang F(王锋)1,2,3,4
Source PublicationASTROPHYSICS AND SPACE SCIENCE
2018-04-01
Volume363Issue:4
DOI10.1007/s10509-018-3306-1
Contribution Rank第2完成单位
Indexed BySCI
KeywordSun: Activity Sun: Magnetic Fields Sun: Radio Radiation Methods: Statistical
Abstract

Using the Hilbert-Huang transform technique, we investigate the midrange periodicities in solar radio flux at 2800 MHz (F10.7) and sunspot areas (SAs) from February 1, 1947 to September 30, 2016. The following prominent results are found: (1) The quasi-periodic oscillations of both data sets are not identical, such as the rotational cycle, the midrange periodicities, and the Schwabe cycle. In particular, the midrange periodicities ranging from 37.9 days to 297.3 days are related to the magnetic Rossby-type waves; (2) The 1.3-year and 1.7-year fluctuations in solar activity indicators are surface manifestations (from photosphere to corona) of magnetic flux changes generated deep inside the Sun; (3) At the timescale of the Schwabe cycle, the complicated phase relationships in the three intervals (1947-1958, 1959-1988, and 1989-2016) agree with the produced periodicities of the magnetic Rossby-type waves. The findings indicate that the magnetic Rossby-type waves are the possible physical mechanism behind the midrange periodicities of solar activity indicators. Moreover, the significant change in the relationship between photospheric and coronal activity took place after the maximum of solar cycle 22 could be interpreted by the magnetic Rossby-type waves.

Funding ProjectNational Key Research and Development Program of China[2016YFE0100300] ; National Natural Science Foundation of China (NSFC)[U1531132] ; National Natural Science Foundation of China (NSFC)[U1631129] ; National Natural Science Foundation of China (NSFC)[U1231205] ; Chinese Academy of Sciences (CAS)[U1531132] ; Chinese Academy of Sciences (CAS)[U1631129] ; Chinese Academy of Sciences (CAS)[U1231205] ; National Natural Science Foundation of China[11403009] ; National Natural Science Foundation of China[11773012] ; National Natural Science Foundation of China[11463003] ; CAS Key Laboratory of Solar Activity[KLSA201807] ; Astronomical Big Data Joint Research Center
Funding OrganizationNational Key Research and Development Program of China[2016YFE0100300] ; National Natural Science Foundation of China (NSFC)[U1531132, U1631129, U1231205] ; Chinese Academy of Sciences (CAS)[U1531132, U1631129, U1231205] ; National Natural Science Foundation of China[11403009, 11773012, 11463003] ; CAS Key Laboratory of Solar Activity[KLSA201807] ; Astronomical Big Data Joint Research Center
Language英语
Subject Area天文学 ; 太阳与太阳系
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherSPRINGER
Publication PlaceVAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
ISSN0004-640X
URL查看原文
WOS IDWOS:000429130000023
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordEMPIRICAL MODE DECOMPOSITION ; RIEGER-TYPE PERIODICITIES ; 10.7 CM FLUX ; MIDTERM PERIODICITIES ; GEOMAGNETIC-ACTIVITY ; HILBERT SPECTRUM ; ROSSBY WAVES ; CYCLE ; ROTATION ; FLARES
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/12304
Collection其他
Corresponding AuthorWang F(王锋)
Affiliation1.Center For Astrophysics, Guangzhou University, Guangzhou 510006, P.R. China
2.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, P.R. China
3.CAS Key Laboratory of Solar Activity, National Astronomical Observatories, Beijing 100012, P.R. China
4.University of Chinese Academy of Sciences, Beijing 100049, P.R. China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Mei Y,Deng H,Wang F. On midrange periodicities in solar radio flux and sunspot areas[J]. ASTROPHYSICS AND SPACE SCIENCE,2018,363(4).
APA Mei Y,Deng H,&Wang F.(2018).On midrange periodicities in solar radio flux and sunspot areas.ASTROPHYSICS AND SPACE SCIENCE,363(4).
MLA Mei Y,et al."On midrange periodicities in solar radio flux and sunspot areas".ASTROPHYSICS AND SPACE SCIENCE 363.4(2018).
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