Strange nonchaotic stars
Chaotic Dynamics
2015-02-05 v2 Solar and Stellar Astrophysics
Abstract
The unprecedented light curves of the Kepler space telescope document how the brightness of some stars pulsates at primary and secondary frequencies whose ratios are near the golden mean, the most irrational number. A nonlinear dynamical system driven by an irrational ratio of frequencies generically exhibits a strange but nonchaotic attractor. For Kepler's "golden" stars, we present evidence of the first observation of strange nonchaotic dynamics in nature outside the laboratory. This discovery could aid the classification and detailed modeling of variable stars.
Cite
@article{arxiv.1501.01747,
title = {Strange nonchaotic stars},
author = {John F. Lindner and Vivek Kohar and Behnam Kia and Michael Hippke and John G. Learned and William L. Ditto},
journal= {arXiv preprint arXiv:1501.01747},
year = {2015}
}
Comments
5 pages, 4 figures, published in Physical Review Letters