All Tables

Table 1: Results for $\alpha ^2\omega$ dynamos in a homogeneous sphere. The values of $\log E$ , $<B_{\rm pol}>$ and q are global quantities, taken over the sphere $r\le 1$ , and averaged over time for the case of non-steady solutions. In the last column, SP denotes a singly periodic solution, DP doubly periodic and ST a steady solution. When two figures are given in brackets for the parity P, this is the range of variation. The entry with $C_\alpha =0$ applies to a non-dynamo state, where the external field is amplified solely by the differential rotation.
Table 2: As Table 1, but for $\alpha ^2$ dynamos. In the absence of dynamo action ( $C_\alpha =0$ ), $<B_{\rm pol}>\ =B_{\rm ext}$ , $q\rightarrow \infty$ and the value of the global magnetic energy is then given by $\log E_{\rm ND} =0.32 + \log B_{\rm ext}^2$ .