G. Alecian, O. Richard and S. Vauclair (eds)
EAS Publications Series, 17 (2005) 149-154
Helioseismology, Neutrinos and Radiative Zones
SAp/DAPNIA/CEA, CE Saclay, 91191 Gif-sur-Yvette, France
2 HEPL, 455 via Palou, Stanford University, California, 94305-4085, USA
3 University of Chicago, LASR 933, East 56th Street Chicago, Il 60637, USA
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.
© EAS, EDP Sciences, 2005