Helioseismic detections of overshoot below the solar convection zone

Abstract

It is generally accepted that there is no adequate theory to describe astrophysical convection. In particular, there is no agreement among different theories about the extent of overshoot from stellar convection zones. The solar photosphere seems to show, substantial overshoot. On the basis of this result it is sometimes concluded that there is substantial overshoot below the solar convection zone also. Since this layer is not directly observable, we attempt to verify this conjecture using the available helioseismic data (Libbrecht et al. 1990).