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Intermittency as a possible underlying mechanism for solar and stellar variability

Reza Tavakol, Eurico Covas

astro-pharXiv:astro-ph/9904394

Abstract

We briefly discuss the status of the intermittency hypothesis, according to which the grand minima type variability in solar-type stars may be understood in terms of dynamical intermittency. We review concrete examples which establish this hypothesis in the mean-field setting. We discuss some difficulties and open problems regarding the establishment of this hypothesis in more realistic settings as well as its operationally decidability.

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