  We revisit the possible turbulent sources of the solar dynamo. Studying
axisymmetric mean-field dynamo models, we find that the large-scale poloidal
magnetic field could be generated not only by the famous alpha effect, but also
by the Omega x J and shear-current effects. The inclusion of these additional
turbulent sources alleviates several of the known problems of solar mean-field
dynamo models.

Astrophysics