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Determination of Cycle Length of Quasi-Periodic Signals. Application to Semiregular Variables

We review methods for determination of "quasi-periods" (or "cycle length") of signals of low coherence. Such type of variability was called "cyclic" for semi-regular red variables, or "quasi-periodic oscillations" (QPO) for fast variability in cataclysmic variables and related objects. Methods are illustrated by application to AF Cygni.

preprint2012arXivOpen access
Ivan L. AndronovLidia L. Chinarova
astro-ph.GA
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Ivan L. AndronovLidia L. Chinarova

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