Diffusion and pulsations in slowly rotating B stars
Astrophysics
2009-11-11 v1
Abstract
Diffusion in cool B stars of the main sequence has been shown to strongly affect opacities and convection in cool B stars of the main sequence. We show here that diffusion in B stars maintains or enhances the excitation of pulsations in these stars. This result conflicts with observations as cool B stars that show evidence of diffusion, the HgMn stars, are stable to the current detection level. We discuss possible implications of this discrepancy for the models.
Cite
@article{arxiv.astro-ph/0509778,
title = {Diffusion and pulsations in slowly rotating B stars},
author = {S. Turcotte and O. Richard},
journal= {arXiv preprint arXiv:astro-ph/0509778},
year = {2009}
}
Comments
4 pages, 1 figure, in Element stratification in stars: 40 years of atomic diffusion