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arXiv · 1609.05335

Evolution of the cycles of magnetic activity of the Sun and Sun-like stars in time

E. A. Bruevich·V. V. Bruevich·B. P. Artamonov
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Abstract

We applied the method of continuous wavelet-transform to the time-frequency analysis to the sets of observations of relative sunspot numbers, sunspot areas and to 6 Mount Wilson HK-project stars with well-defined magnetic cycles. Wavelet analysis of these data reveals the following pattern: at the same time there are several activity cycles whose periods vary widely from the quasi-biennial up to the centennial period for the Sun and vary significant during observations time of the HK-project stars. These relatively low-frequency periodic variations of the solar and stellar activity gradually change the values of periods of different cycles in time. This phenomenon can be observed in every cycles of activity

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E. A. Bruevich, V. V. Bruevich, B. P. Artamonov. 2016-09-17. Evolution of the cycles of magnetic activity of the Sun and Sun-like stars in time. https://arxiv.org/abs/1609.05335

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