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Helioseismology, Neutrinos and Radiative Zones

Published online by Cambridge University Press:  13 January 2006

G. Alecian ,
O. Richard ,
S. Vauclair ,
S. Turck-Chièze ,
S. Couvidat  and
L. Piau
S. Turck-Chièze
Affiliation:
SAp/DAPNIA/CEA, CE Saclay, 91191 Gif-sur-Yvette, France
S. Couvidat
Affiliation:
HEPL, 455 via Palou, Stanford University, California, 94305-4085, USA
L. Piau
Affiliation:
University of Chicago, LASR 933, East 56th Street Chicago, Il 60637, USA
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Abstract


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 abundancerevision. Today, we get a quantitatively coherent picture (even incomplete) of the solar (stellar) radiative zones. In this review, we recallthe 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 convectionin 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.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 17: Element Stratification in Stars: 40 Years of Atomic Diffusion , 2005 , pp. 149 - 154
Copyright
© EAS, EDP Sciences, 2005

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