Nonlinear Analysis of Irregular Variables

Abstract

The Fourier spectral techniques that are common in Astronomy for analyzing periodic or multi-periodic light-curves lose their usefulness when they are applied to unsteady light-curves. We review some of the novel techniques that have been developed for analyzing irregular stellar light or radial velocity variations, and we describe what useful physical and astronomical information can be gained from their use.

31 pages, to appear as a chapter in `Nonlinear Stellar Pulsation' in the Astrophysics and Space Science Library (ASSL), Editors: M. Takeuti & D. Sasselov

References in corpus (2)

• Nonlinear Analysis of the Lightcurve of the Variable Star R Scuti
• Search for Low-Dimensional Chaos in Observational Data

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• Evidence for Low-Dimensional Chaos in Semiregular Variable Stars
• Low-dimensional chaos in RR Lyrae models
• The He-shell flash in action: T Ursae Minoris revisited
• Wavelets with Ridges: A High-Resolution Representation of Cataclysmic Variable Time-Series
• Nonlinear Properties of the Semiregular Variable Stars
• Du chaos dans la musique des etoiles