Asteroseismology has reached a level of accuracy that may allow us to detect the effect of a deep magnetic field on oscillation modes. We thus aim to develop an asymptotic theory for short-wavelength waves in radiative zones of rotating stars with a general magnetic field topology (toroidal and poloidal). A dispersion relation is derived for a uniformly rotating star with a low-amplitude, axisymmetric magnetic field. The parameter space of this model is explored with a Hamiltonian ray-tracing method. The features of the gravito-inertial waves modified by the magnetic field are studied with different magnetic topologies.
@article{arxiv.1810.02279,
title = {Waves in the radiative zones of rotating, magnetized stars},
author = {Aurélien Valade and Vincent Prat and Stéphane Mathis and Kyle Augustson},
journal= {arXiv preprint arXiv:1810.02279},
year = {2018}
}
Comments
2 pages, 1 figure, to appear in Proceedings of SF2A 2018