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Activity cycle of solar filaments
Li KJ(李可军)1; Li QX(李启秀)1,2; Gao PX(高朋鑫)1,2; Mu J(穆军)1,2; Chen HD(陈华东)1,2; Su TW(苏同卫)1; Li, KJ (reprint author), CAS, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
Source PublicationJOURNAL OF ASTROPHYSICS AND ASTRONOMY
2007-06
Volume28Issue:2-3Pages:147-156
DOI10.1007/s12036-007-0012-8
Contribution Rank第1完成单位
Indexed BySCI
KeywordSun Activity-filaments-active Cycle
AbstractLong-term variation in the distribution of the solar filaments observed at the Observatorie de Paris, Section de Meudon from March 1919 to December 1989 is presented to compare with sunspot cycle and to study the periodicity in the filament activity, namely the periods of the coronal activity with the Morlet wavelet used. It is inferred that the activity cycle of solar filaments should have them same cycle length as sunspot cycle, but the cycle behavior of solar filaments is globally similar in profile with, but different in detail from, that of sunspot cycles. The amplitude of solar magnetic activity should not keep in phase with the complexity of solar magnetic activity. The possible periods in the filament activity are about 10.44 and 19.20 years. The wavelet local power spectrum of the period 10.44 years is statistically significant during the whole consideration time. The wavelet local power spectrum of the period 19.20 years is under the 95% confidence spectrum during the whole consideration time, but over the mean red-noise spectrum of alpha = 0.72 before approximate Carrington rotation number 1500, and after that the filament activity does not statistically show the period. Wavelet reconstruction indicates that the early data of the filament archive (in and before cycle 16) are more noiseful than the later (in and after cycle 17).
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0250-6335
URL查看原文
Archive Date2007-10-08
WOS IDWOS:000250388800006
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordWAVELET ANALYSIS ; GREEN CORONA ; PROMINENCES ; PERIODICITIES ; OSCILLATIONS ; PARAMETERS ; INDEXES
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Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6106
Collection太阳物理研究组
Corresponding AuthorLi, KJ (reprint author), CAS, Yunnan Observ, Natl Astron Observ, Kunming 650011, Peoples R China.
Affiliation1.National Astronomical Observatories/Yunnan Observatory, CAS, Kunming, 650 011, China
2.School of Graduate, CAS, Beijing, 100 863, China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Li KJ,Li QX,Gao PX,et al. Activity cycle of solar filaments[J]. JOURNAL OF ASTROPHYSICS AND ASTRONOMY,2007,28(2-3):147-156.
APA Li KJ.,Li QX.,Gao PX.,Mu J.,Chen HD.,...&Li, KJ .(2007).Activity cycle of solar filaments.JOURNAL OF ASTROPHYSICS AND ASTRONOMY,28(2-3),147-156.
MLA Li KJ,et al."Activity cycle of solar filaments".JOURNAL OF ASTROPHYSICS AND ASTRONOMY 28.2-3(2007):147-156.
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