2006A&A...449..673S


Query : 2006A&A...449..673S

2006A&A...449..673S - Astronomy and Astrophysics, volume 449673-685 (2006/4-2)

Effects of moderately fast shellular rotation on adiabatic oscillations.

SUAREZ J.C., GOUPIL M.J. and MOREL P.

Abstract (from CDS):

We investigate adiabatic oscillations for δ Scuti star models, taking a moderate rotation velocity (around 100km/s) 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 Ω=Ω(r) on oscillation frequencies are compared. As expected, important differences (around 3µHz) are obtained in the g and mixed-mode regions. For higher-frequency p modes, differences range between 1µHz and 3µHz. Such differences are likely to be detectable with future space missions such as COROT, where precisions in frequency around 0.5µHz are expected to be reached.

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Journal keyword(s): stars: variables: δ Sct - stars: rotation - stars: oscillations - stars: interiors - stars: fundamental parameters - stars: evolution

Simbad objects: 2

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Number of rows : 2
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026
#notes
1 * nu. Eri bC* 04 36 19.1419185396 -03 21 08.857744927 2.82 3.737 3.928     B2III 407 0
2 V* V836 Cen bC* 14 46 25.7601403800 -37 13 20.082887904 7.04 7.88 8.05     B2 124 0

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