Astronomy and Astrophysics – Astrophysics
Scientific paper
2003-01-27
Mon.Not.Roy.Astron.Soc. 341 (2003) 855-862
Astronomy and Astrophysics
Astrophysics
8 pages, 6 figures; accepted for publication in MNRAS
Scientific paper
10.1046/j.1365-8711.2003.06457.x
There is growing observational evidence that the irregular changes in the light curves of certain variable stars might be due to deterministic chaos. Supporting these conclusions, several simple models of non-linear oscillators have been shown to be capable of reproducing the observed complex behaviour. In this work, we introduce a non-linear, non-adiabatic one-zone model intended to reveal the factors leading to irregular luminosity variations in some pulsating stars. We have studied and characterized the dynamical behaviour of the oscillator as the input parameters are varied. The parametric study implied values corresponding to stellar models in the family of Long Period Variables and in particular of Mira-type stars. We draw the attention on certain solutions that reproduce with reasonable accuracy the observed behaviour of some peculiar Mira variables.
Garcia-Berro Enrique
Jose Jordi
Munteanu Andreea
No associations
LandOfFree
A weakly non-adiabatic one-zone model of stellar pulsations: application to Mira stars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A weakly non-adiabatic one-zone model of stellar pulsations: application to Mira stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A weakly non-adiabatic one-zone model of stellar pulsations: application to Mira stars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-412456