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Article Dans Une Revue EAS Publications Series Année : 2019

RED GIANT STARS: FROM MIXED MODES TO ANGULAR MOMENTUM

Résumé

Solar-like oscillations are ubiquitous to low-mass stars from the main-sequence to the red-giant branch as demonstrated by the space-borne missions CoRoT and Kepler. Understanding the physical mechanisms governing their amplitudes as well as their behavior along with the star evolution is a prerequisite for interpreting the wealth of seismic data and for inferring stellar internal structure. In this paper, I discuss our current knowledge of mode amplitudes with particular emphasis on non-radial modes in red giants (hereafter mixed modes). Then, I will show how these modes permit to unveil the rotation of the innermost layers of low-mass stars and how they put stringent constraints on the redistribution of angular momentum.
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Dates et versions

hal-02335186 , version 1 (28-10-2019)

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K. Belkacem. RED GIANT STARS: FROM MIXED MODES TO ANGULAR MOMENTUM. EAS Publications Series, 2019, 82, pp.189-211. ⟨10.1051/eas/1982019⟩. ⟨hal-02335186⟩
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