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Is the Suess cycle present in historical naked-eye observations of sunspots?
Ma, L. H.1; Vaquero, J. M.2
2009-04-01
Source PublicationNEW ASTRONOMY
Volume14Issue:3Pages:307-310
AbstractSunspot numbers are available for the past four centuries. However, solar activity indices with a longer time span are required by geophysicists and solar physicists. The yearly naked-eye sunspot number in the past is reconstructed using observations recorded in historical documents. Some studies from different solar proxies (including radiocarbon and aurora records) show the presence of the so-called Suess cycle (around 200 years) in solar variability. In this work, a modified Lomb-Scargle periodogrann analysis is used to investigate the Suess cycle in naked-eye observations of sunspots during 200 BC-1918 AD. The moat relevant characteristic of the periodogram is a cycle with a frequency very close to the Suess cycle, though this cycle is not significant statistically. (C) 2008 Elsevier B.V. All rights reserved.
KeywordSun: Activity Sun: Cycle Sun: Sunspots
DOI10.1016/j.newast.2008.09.003
Indexed BySCI
Language英语
WOS IDWOS:000261990100013
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/8352
Collection应用天文研究部
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
2.Univ Extremadura, Dept Fis Aplicada, Caceres 10071, Spain
Recommended Citation
GB/T 7714
Ma, L. H.,Vaquero, J. M.. Is the Suess cycle present in historical naked-eye observations of sunspots?[J]. NEW ASTRONOMY,2009,14(3):307-310.
APA Ma, L. H.,&Vaquero, J. M..(2009).Is the Suess cycle present in historical naked-eye observations of sunspots?.NEW ASTRONOMY,14(3),307-310.
MLA Ma, L. H.,et al."Is the Suess cycle present in historical naked-eye observations of sunspots?".NEW ASTRONOMY 14.3(2009):307-310.
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