View source for Talk:Solar dynamo

This is a nice review capturing a broad range facts and ideas, supplemented by nice illustrations. The only thing I'm not happy with is Fig.4 which shows unnormalized quantities and then even on a linear scale. By plotting normalized quantities (e.g. cycle frequency to rotation frequency versus Coriolis or inverse Rossby number) one brings some order into the plot, different branches emerge (for inactive, active, and superactive stars), and (by using a log-log representation) one can estimate their slopes and related them tentatively to powerlaw behaviors.


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I agree with the previous reviewer that this article is a very good review of solar dynamo theory. For reasons
of completeness I would like to suggest the addition of two short sections:

In section "Numerical models" a section about interface/overshoot dynamos. This type of models has problems 
with the "the high number of field belts" as already pointed out in the article, but I think they should be
mentioned nevertheless as a subclass of models. 

Currently the article focuses primarily on the mean field approach. It is true that there is to date no comprehensive
global 3D solar dynamo model, but the field of 3D simulations has been improving significantly over the last couple
years and it can be expected that 3D simulations will contribute substantially in the future. The current state of 
3D simulations and their primary difficulties should be mentioned briefly in a separate section. This does not have 
to be done in great detail, since already excellent review articles exist on the web (e.g. 
[http://solarphysics.livingreviews.org/Articles/lrsp-2005-1 living reviews in solar physics]).

== comments to reviews ==

ref. A:  I agree to modify the discussion of the Figure 4 where cycle times and rotation times are compared and changed the plot in the suggested direction (plus one new reference -- Boehm-Vitense).

ref. B:  As well suggested I added two more sections: i) boundary layer dynamo and ii) simulation models.

== comments to reviews ==

ref. A:  I agree to modify the discussion of the Figure 4 where cycle times and rotation times are compared and changed the plot in the suggested direction (plus one new reference -- Boehm-Vitense).

ref. B: as well suggested I added two more sections: i) boundary layer dynamo and ii) simulation models.