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Paper: A Seismic Tool to Study Stellar Structure and Evolution of Differentially Rotating Stars
Volume: 333, Tidal Evolution and Oscillations in Binary Stars: Third Granada Workshop on Stellar Structure
Page: 247
Authors: Suarez, J.C.; Goupil, M.J.; Dziembowski, W.
Abstract: Binary systems can be one of the sources producing differential rotation inside stellar structures. Stellar evolution is thus conditioned to how rotation modifies different regions in stellar interiors. In this work we present the first numerical results of adiabatic frequencies in an intermediate mass star model, using a perturbation method up to the second order, taking into account a radial differential rotation. We show, as we predicted, that g and mixed modes are the most affected by differential rotation. Differences up to 3 – 4 μHz respectively in first and second order corrections to the frequency are found. This can be a very important step toward the comprehension of the rotation profile in such stars, and thus of their evolution.
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