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

Boyd, P. T.; Mindlin, G. B.; Merener, N.

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 qualitativel…