Diffusion and pulsations in slowly rotating B stars
arXiv:astro-ph/0509778 · doi:10.1051/eas:2005141
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.
4 pages, 1 figure, in Element stratification in stars: 40 years of atomic diffusion