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Paper: Connections between Quasi-Periodicity and Modulation in Pulsating Stars
Volume: 479, Progress in Physics of the Sun and Stars
Page: 531
Authors: Benkő, J. M.; Paparó, M.
Abstract: The observations of the photometric space telescopes CoRoT and Kepler show numerous Blazhko RR Lyrae stars which have non-repetitive modulation cycles. The phenomenon can be explained by multi-periodic, stochastic or chaotic processes. From a mathematical point of view, almost periodic functions describe all of them. We assumed band-limited almost periodic functions either for the light curves of the main pulsation or for the modulation functions. The resulting light curves can generally be described analytically and may also be examined by numerical simulations. This presentation is a part of our systematic study on the modulation of pulsating stars (Benkő et al. 2009, 2011, 2012).
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