Hostname: page-component-cb9f654ff-c75p9 Total loading time: 0 Render date: 2025-08-26T08:22:46.850Z Has data issue: false hasContentIssue false
  • English
  • Français

Asteroseismic constraints on the OPAL opacity interpolation

Published online by Cambridge University Press:  01 April 2008

W. M. Yang  and
M. Li
W. M. Yang
Affiliation:
Department of Physics and Chemistry, Henan Polytechnic University, Jiaozuo 454000, China email: yang.wuming@yahoo.com.cn
M. Li
Affiliation:
Department of Physics and Chemistry, Henan Polytechnic University, Jiaozuo 454000, China email: yang.wuming@yahoo.com.cn
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

There is a difference of a few Kelvins in the effective temperature between a model used only two-point interpolation of opacity and a model used piecewise linear interpolation of opacity. However the frequency difference between the models is of the order of several microHertz at a certain stage, which is almost 10 times worse than the observational precision of p-modes of solar-like stars. Therefore, the two-point interpolation of opacity is unsuitable in modelling of solar-like stars with element diffusion.

Keywords

stars: evolutiondiffusionstars: oscillations

References

Alexander, D. R. & Ferguson, J. W. 1994, ApJ, 437, 846CrossRefGoogle Scholar
Basu, S., Pinsonneault, M. H., & Bahcall, J. N. 2000, ApJ, 529, 1084CrossRefGoogle Scholar
Bedding, T. R., Kjeldsen, H., Butler, P. R., et al. 2004, ApJ, 614, 380CrossRefGoogle Scholar
Christensen-Dalsgaard, J., Proffitt, C. R. & Thompson, M. J. 1993, ApJ, 403, L75CrossRefGoogle Scholar
Iglesias, C. & Rogers, F. J., 1996, ApJ, 464, 943CrossRefGoogle Scholar
Rogers, F. J. & Nayfonov, A, 2002, ApJ, 576, 1064CrossRefGoogle Scholar
Thado, S., Vauclair, S., Castro, M., Charpinet, S., & Dolez, N. 2005, A&A, 437, 553Google Scholar
Thoul, A. A., Bahcall, J. N., & Loeb, A. 1994, ApJ, 421, 828CrossRefGoogle Scholar
Turcotte, S., Richer, J., & Michard, G. 1998, ApJ, 504, 559CrossRefGoogle Scholar