The Solar Dynamo
Abstract
The basic features of the solar activity mechanism are explained in terms of the dynamo theory of mean magnetic fields. The field generation sources are the differential rotation and the mean helicity of turbulent motions in the convective zone. A nonlinear effect of the magnetic field upon the mean helicity results in stabilizing the amplitude of the 22-year oscillations and forming a basic limiting cycle. When two magnetic modes (with dipole and quadrupole symmetry) are excited nonlinear beats appear, which may be related to the secular cycle modulation.
- Publication:
-
Solar Physics
- Pub Date:
- October 1985
- DOI:
- 10.1007/BF00158425
- Bibcode:
- 1985SoPh..100..125R
- Keywords:
-
- Dynamo Theory;
- Solar Activity;
- Solar Magnetic Field;
- Helical Flow;
- Solar Cycles;
- Solar Oscillations;
- Solar Rotation;
- Solar Physics;
- Magnetic Field;
- Solar Activity;
- Convective Zone;
- Differential Rotation;
- Turbulent Motion