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

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

Apr 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998el.....42...31m&link_type=abstract

Europhysics Letters, Volume 42, Issue 1, pp. 31-36 (1998).

Physics

Fluid Dynamics

6

Chaos In Fluid Dynamics

Scientific paper

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.

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