Near-surface Effects in Modelling Oscillations of Eta Boo
Abstract
Following the report of solar-like oscillations in the G0 V star eta Boo (Kjeldsen et al. 1995, AJ 109, 1313), a first attempt to model the observed frequencies was made by Christensen-Dalsgaard et al. (1995, ApJ Letters, in press). This attempt succeeded in reproducing the observed frequency separations, although there remained a difference of about 10 microHz between observed and computed frequencies. In those models, the near-surface region of the star was treated rather crudely. Here we consider more sophisticated models that include non-local mixing-length theory, turbulent pressure and nonadiabatic oscillations.
- Publication:
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IAU Colloq. 155: Astrophysical Applications of Stellar Pulsation
- Pub Date:
- 1995
- DOI:
- 10.48550/arXiv.astro-ph/9503106
- arXiv:
- arXiv:astro-ph/9503106
- Bibcode:
- 1995ASPC...83..447C
- Keywords:
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- Astrophysics
- E-Print:
- uuencoded and compressed Postscript (2 pages, including figure)