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Phase relationship between polar faculae and sunspot numbers

Published online by Cambridge University Press:  18 July 2013

L. H. Deng
L. H. Deng*
Affiliation:
National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, 650011, Kunming, China; email: bench@ynao.ac.cn University of Chinese Academy of Sciences, 100049, Beijing, China
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Abstract

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Linear and nonlinear approaches are used to investigate the phase asynchrony between the polar faculae (PF) and sunspot numbers (SNs). It is found that, (1) PF show leads of 52 months relative to SNs on the average of the considered time interval; (2) the cross-wavelet transform analysis shows that they are asynchronous in both the low- and high-frequency components. These indicate that their phase relationship is not only time-dependent but also frequency-dependent.

Keywords

Sun: sunspot — faculae — methods: data analysis
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S294: Solar and Astrophysical Dynamos and Magnetic Activity , August 2012 , pp. 61 - 62
Copyright
Copyright © International Astronomical Union 2013 

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