The precision of all the results presented here was checked. In this section, we discuss properties that are common to the two models. Only the assumption of the independence of on z is needed in the free-decay mode expansion. It also allows for a connection with established theory. Asterisks denote non-oscillatory solutions whereas diamonds denote oscillatory solutions.
Solid lines are for quadrupolar modes and dotted lines for dipolar modes.
Signs above the curves indicate the sign of The boundary conditions of the free-decay mode expansion imply a vacuum above the disk. Technically, to achieve in this model, we restrict the dynamo action to an inner layer of the disk. The outer part of the disk is thus playing the role of the halo. The results simply need to be rescaled for a proper comparison. In the finite-difference model, we study the case and the case of a low conductivity halo with .