Coupled Groups of g-Modes in a Sun with a Mixed Core

Groups of linear g-modes can sum to create nonlinear motion in small "hot volumes" (diameter similar to 10 Mm) near the solar center that help drive the modes. We explore the consequences of coupling only in the hot volumes where the time-averaged rate of super(3)He burning can double if temperature oscillations exceed 10%. Anticipating large local motions in the core, we impose a mixed shell r = (0.10 plus or minus 0.03) R [unk] on an otherwise standard solar model before computing g-mode solutions. Mixing is rapid (