THE SUN AS A VARIABLE STAR
Abstract:The fine structure of the solar activity index W (Wolf numbers) is investigated. It is suggested that the quasi-biennial oscillations are the main features of the 11-year cycles. The attempt to simulate them by analytical functions is presented. The spectral properties of the whole W values time series are discussed. A conception of the Sun as a magnetic variable star is suggested. A prognosis of the solar cycles 23-24 are given.
Document Type: Research Article
Publication date: January 1, 2002