Evidence of 6000-Year Periodicity in Reconstructed Sunspot Numbers

Reconstructed sunspot data are available that extend solar activity back to 11360 years before the present. We have examined these data using Hurst analysis, a moving average filter, and Fourier analysis. All of the procedures indicate the presence of a long term (-6000 year) cycle not previously re...

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Veröffentlicht in:	Solar physics 2009-07, Vol.257 (2), p.363-369
Hauptverfasser:	Xapsos, M A, Burke, E A
Format:	Artikel
Sprache:	eng
Schlagworte:	Astrophysics Fourier analysis Maximum entropy Solar activity Solar physics Sunspots
Online-Zugang:	Volltext
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