Comparison between standard evolution models for high amplitude δ Sct stars.
Abstract
Recent ubvyβ observations of high amplitude δ Sct stars obtained at Sierra Nevada (Spain) and La Silla (Chile) observatories are compared with standard evolution models. The authors find very good agreement between Claret et al. model's (1989) and those from Vanden Berg (1985). However, a systematic effect on the derived masses is found if one uses the Hejlesen's results as indicated by previous work by Andersen et al. (1984). The results derived from the evolution models are compared with those derived from pulsation theory. A good agreement is found.
- Publication:
-
Revista Mexicana de Astronomia y Astrofisica, vol. 21
- Pub Date:
- November 1990
- Bibcode:
- 1990RMxAA..21..389C
- Keywords:
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- Delta Scuti Stars: Stellar Evolution;
- Delta Scuti Stars: Stroemgren Photometry