Pierre Demarque

TL;DR: Data from the GONG project and other helioseismic experiments reveal subtle errors in the models, such as an excess in sound speed just beneath the convection zone, which is plausible that the sound-speed differences reflect weak mixing in stellar interiors.

TL;DR: In this article, the authors provide a patch to the Y2 isochrones with an improved treatment of convective core overshoot, which covers the transition mass range from no convective cores to a fully developed core.

TL;DR: In this article, a new set of isochrones, called the Y^2 Isochrones, were constructed for the scaled solar mixture, which represent an update of the Revised Yale IsoChrones (RYI), using improved opacities and equations of state.

TL;DR: In this paper, the authors constructed a new set of isochrones, called the Y2 Isochrones, that represent an update of the Revised Yale IsoChrones (RYI), using improved opacities and equations of state.

TL;DR: The Yale Rotating Evolution Code (YREC) as discussed by the authors uses the Kippenhahn and Thomas (1970, KT) formalism as implemented by Endal and Sofia (1976), although the numerical formulation of their code is totally new.