Low-dimensional dynamics outside the laboratory: The case of roAp stars

In this work, we build a nonlinear model to account for the time variable energy flux of a class of pulsating stars which is simple and robust, and test it against recent observations made with the Hubble Space Telescope. By the construction of a standard global normal form for the model, we not onl...

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Detalles Bibliográficos
Autores principales: Mindlin, G.B., Merener, N., Boyd, P.T.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_02955075_v42_n1_p31_Mindlin
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Sumario:In this work, we build a nonlinear model to account for the time variable energy flux of a class of pulsating stars which is simple and robust, and test it against recent observations made with the Hubble Space Telescope. By the construction of a standard global normal form for the model, we not only check that the model has solutions qualitatively similar to the observations; we also fit the parameters of the model from the time series. This allows us to build confidence on a simple model for the phenomenon under study, which should be valid for a class of pulsating stars.