The Influence of Magnetic Fields on Convective Motions in the Outer Layers of the Sun

Abstract

In this paper we make a preliminary investigation of the nonlinear equations of compressible convection under the influence of solar-type magnetic fields. A polytropic model of the basic structure is used and, although the model is somewhat restrictive, good agreement is obtained with general observations in both strong and weak field cases. The value and influence of the turbulent magnetic resistivity is investigated and the depth dependence of the vertical velocity within a given period is used to study the way in which the overstable oscillations change their direction of flow from positive to negative.