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- Title
Origin of the Continuous Component of the Variation in the Solar and Stellar Activity Spectra.
- Authors
Sokoloff, D. D.; Frick, P. G.
- Abstract
Analysis of time series of a solar-activity tracer indicates that the spectrum of fluctuation activity, in addition to the main activity cycle, also contains a continuous spectrum of variation. A similar continuous spectrum of variation is characteristic of the observed tracers of stellar activity. The origin of the continuous spectrum of variation in stellar activity has so far been little discussed in terms of dynamo theory. This paper describes various ideas about the origin of this spectrum. It may be the result of the nonlinear processes accompanying the generation of the main activity cycle due to the dynamo mechanism. Direct excitation of a continuous spectrum not associated with the main cycle is also possible. A possible connection between the continuous spectrum of activity and the concept of dynamic chaos in small dynamo models is discussed.
- Subjects
STELLAR activity; STELLAR spectra; SOLAR activity; SOLAR oscillations; TIME series analysis; EXCITATION spectrum; SOLAR cycle
- Publication
Geomagnetism & Aeronomy, 2021, Vol 61, Issue 7, p911
- ISSN
0016-7932
- Publication type
Article
- DOI
10.1134/S0016793221070185