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| Paper: |
Exploring the Effects of Detailed Chemical Profiles on the Adiabatic Oscillation Spectrum of sdB Stars: First Results |
| Volume: |
452, Fifth Meeting on Hot Subdwarf Stars and Related Objects |
| Page: |
175 |
| Authors: |
Miller Bertolami, M. M.; Córsico, A. H.; Althaus, L. G. |
| Abstract: |
We present results of an ongoing study of the pulsational properties
of sdB stellar models aimed at exploring the consequences of detailed
chemical transitions for radial, p– and g– modes. In particular,
we focus on the effects of diffusion at the H-He transition and of
He-burning at the convective cores.
We find that diffusion of He and H has a strong impact on the period
spectrum of sdBVs stars, leading to less efficient mode trapping. Our
results also suggests that asteroseismology of sdBVs stars might offer
a very good opportunity to constrain extramixing processes in the
He-burning cores of horizontal branch stars. |
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