Evidence of 6 000-Year Periodicity in Reconstructed Sunspot Numbers

Autor:	M. A. Xapsos, E. A. Burke
Rok vydání:	2009
Předmět:	Physics Sunspot Principle of maximum entropy Astronomy and Astrophysics Term (time) Bayes' theorem symbols.namesake Hurst analysis Space and Planetary Science Fourier analysis Moving average symbols Smoothing filter Statistical physics
Zdroj:	Solar Physics. 257:363-369
ISSN:	1573-093X 0038-0938
DOI:	10.1007/s11207-009-9380-3
Popis:	Reconstructed sunspot data are available that extend solar activity back to 11 360 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 (≈6 000 year) cycle not previously reported. A number of shorter cycles formerly identified in the literature by using Fourier analysis, Bayes methods, and maximum entropy methods were also detected in the reconstructed sunspot data.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::345dd2146f7d69300a40fe39f38a3d3d https://doi.org/10.1007/s11207-009-9380-3 Zobrazit plný text záznamu Plný text ve formátu PDF