Astronomy and Astrophysics – Astrophysics
Scientific paper
2005-10-31
Astronomy and Astrophysics
Astrophysics
6 pages, 2 figures, 1 table, will be published in EAS Publications series, Conference 2005: Element stratification in stars: 4
Scientific paper
10.1051/eas:2005109
The solar interior has been scrutinized by two different and independent probes during the last twenty years with important revisions of the solar model, including a recent heavy element abundance revision. Today, we get a quantitatively coherent picture (even incomplete) of the solar (stellar) radiative zones. In this review, we recall the clues for solar gravitational settling definitively established by the seismic determination of the photospheric helium content. We comment also on the need for mixing in the transition region between radiation and convection in the case of the Sun and of population II stars. We finally list the open questions and the importance to continue more precise investigations of the solar (stellar) radiative zone in detecting gravity modes with the project DynaMICS.
Couvidat Sebastien
Piau Laurent
Turck-Chieze Sylvaine
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