Some New Understandings on Nonlinear Stellar Pulsation

Details Some New Understandings on Nonlinear Stellar Pulsation Some New Understandings on Nonlinear Stellar Pulsation

Jan 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995nyasa.773..296w&link_type=abstract

Waves in Astrophysics, vol. Volume 773, p. 296-301

Mathematics

Dynamical Systems

Pulsars, Nonlinear Systems, Pulsed Radiation, Dynamical Systems, Coupled Modes

Scientific paper

We have investigated the properties of a weakly nonlinear, weakly dissipative dynamical system that resembles a multimode pulsating star. Three-mode coupling is shown to be very effective in transporting energy from driven modes to damped modes, thus limiting the pulsation amplitudes. Analytical predictions on mode amplitudes is confirmed by numerical experiments.

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