Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010mnras.409.1611b&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Volume 409, Issue 4, pp. 1611-1618.
Astronomy and Astrophysics
Astronomy
Magnetic Fields, Mhd, Turbulence, Sun: Activity, Sun: Dynamo
Scientific paper
Recent numerical and analytical work has identified a possible new source of mean-field dynamo action, caused by fluctuations in the α-effect interacting with a large-scale shear. This process gives rise to a new source term in the averaged induction equation. Essentially the same term arises from the shear-current effect. This paper investigates the consequences of the new term in a two-dimensional solar dynamo model, in spherical geometry, with a realistic large-scale shear. In general, it is found that the new source term leads to an increase in the dynamo cycle period, although the details of this depend crucially upon the spatial variation of the fluctuations in the α-effect (or the shear-current term). Steady magnetic fields are generated when the new term plays a dominant role in the dynamo process.
Bushby Paul J.
Proctor Michael R. E.
No associations
LandOfFree
The influence of α-effect fluctuations and the shear-current effect upon the behaviour of solar mean-field dynamo models does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The influence of α-effect fluctuations and the shear-current effect upon the behaviour of solar mean-field dynamo models, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The influence of α-effect fluctuations and the shear-current effect upon the behaviour of solar mean-field dynamo models will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1298373