| Issue |
A&A
Volume 449, Number 2, April II 2006
|
|
|---|---|---|
| Page(s) | 673 - 685 | |
| Section | Stellar structure and evolution | |
| DOI | https://doi.org/10.1051/0004-6361:20054181 | |
| Published online | 21 March 2006 | |
Effects of moderately fast shellular rotation on adiabatic oscillations
1
Instituto de Astrofísica de Andalucía (CSIC), CP 3004, Granada, Spain e-mail: jcsuarez@iaa.es
2
LESIA, UMR 8109, Observatoire de Paris-Meudon, France
3
Observatoire de la Côte d'Azur, Nice, France
Received:
9
September
2005
Accepted:
11
November
2005
We investigate adiabatic oscillations for δ Scuti star models,
taking a moderate rotation velocity (around 
) into account.
The resulting oscillation frequencies include corrections for rotation
up to second order in the rotation rate
including those of near degeneracy. Effects of either a uniform rotation or
a rotation profile assuming local angular momentum conservation of the form
on oscillation frequencies are compared.
As expected, important differences (around 
) are
obtained in the g and mixed-mode regions. For higher-frequency p modes,
differences range between 
and . Such differences are likely to be
detectable with future space missions such as COROT, where
precisions in frequency around 
are expected to be reached.
Key words: stars: variables: δ Sct / stars: rotation / stars: oscillations / stars: interiors / stars: fundamental parameters / stars: evolution
© ESO, 2006
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