Applications of pulsation amplitudes and phases for B-type main sequence pulsators
Abstract
Combined data on pulsation amplitudes and phases from multicolour photometry and spectroscopy yield constraints on mode identification as well as on mean stellar parameters. The data allow for determination of a certain complex parameter which may be compared with the model value and thus constitute a new seismic probe of stellar interior, specifically of its outer layers. We present here some results obtained for the two beta Cephei stars delta Ceti and nu Eridani. We found significant differences between models calculated with opacities from the OPAL and OP projects.
- Publication:
-
Memorie della Societa Astronomica Italiana
- Pub Date:
- 2006
- Bibcode:
- 2006MmSAI..77..449D
- Keywords:
-
- Stars: beta Cep pulsators;
- Stars: individual: delta Cet;
- nu Eri;
- Stars: atmospheres