Effects of Uniform and Differential Rotation on Stellar Pulsations
arXiv:0811.2749 · doi:10.1088/0004-637X/693/1/677
Abstract
We have investigated the effects of uniform rotation and a specific model for differential rotation on the pulsation frequencies of 10 \Msun\ stellar models. Uniform rotation decreases the frequencies for all modes. Differential rotation does not appear to have a significant effect on the frequencies, except for the most extreme differentially rotating models. In all cases, the large and small separations show the effects of rotation at lower velocities than do the individual frequencies. Unfortunately, to a certain extent, differential rotation mimics the effects o f more rapid rotation, and only the presence of some specific observed frequencies with well identified modes will be able to uniquely constrain the internal rotation of pulsating stars.
33 pages, 16 figures. Accepted for publication in ApJ
References in corpus (9)
- Constraining solar abundances using helioseismology
- The spinning-top Be star Achernar from VLTI-VINCI
- The Rotation Of The Deep Solar Layers
- Acoustic oscillations in rapidly rotating polytropic stars I. Effects of the centrifugal distortion
- Determining solar abundances using helioseismology
- Regular patterns in the acoustic spectrum of rapidly rotating stars
- On the Determination of the Rotational Oblateness of Achernar
- Radial and Nonradial Oscillation Modes in Rapidly Rotating Stars
- Asteroseismology of solar-type stars: signatures of convective and/or helium cores
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