Theoretical clues for mode identification - Instability ranges and rotational splitting patterns
- Author(s)
- Aleksiej Pamiatnych
- Abstract
Frequency spectra of unstable modes for typical models of ß Cephei, SPB and d Scuti variables are presented. Comparison of theoretical and observed instability ranges allows to constrain possible parameters of the stellar models. As an example, models of ?2 Tau are considered. The main uncertainties in the determination of the theoretical frequency ranges for d Sct variables are due to unsatisfactory treatment of convection. The structure of rotationally split multiplets for the low-order modes excited in d Sct stars is discussed. The rotational coupling between close modes of spherical harmonic degree, l, differing by 2, can significantly disturb the frequency spectrum.
- Organisation(s)
- Department of Astrophysics
- External organisation(s)
- Polish Academy of Sciences (PAS), Russian Academy of Sciences
- Journal
- Astrophysics and Space Science
- Volume
- 284
- Pages
- 97-107
- No. of pages
- 11
- ISSN
- 0004-640X
- DOI
- https://doi.org/10.1023/A:1023205224735
- Publication date
- 2003
- Austrian Fields of Science 2012
- 103003 Astronomy
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/theoretical-clues-for-mode-identification--instability-ranges-and-rotational-splitting-patterns(59d416de-ff06-4037-8248-2262b8be63e9).html