Wave chaos in rapidly rotating stars
Astrophysics
2009-06-23 v2 Chaotic Dynamics
Abstract
Effects of rapid stellar rotation on acoustic oscillation modes are poorly understood. We study the dynamics of acoustic rays in rotating polytropic stars and show using quantum chaos concepts that the eigenfrequency spectrum is a superposition of regular frequency patterns and an irregular frequency subset respectively associated with near-integrable and chaotic phase space regions. This opens new perspectives for rapidly rotating star seismology and also provides a new and potentially observable manifestation of wave chaos in a large scale natural system.
Cite
@article{arxiv.0803.1737,
title = {Wave chaos in rapidly rotating stars},
author = {F. Lignieres and B. Georgeot},
journal= {arXiv preprint arXiv:0803.1737},
year = {2009}
}
Comments
5 pages, 3 figures; accepted for publication in Phys. Rev. E