Solar and stellar dynamos - latest developments
Abstract
Recent progress in the theory of solar and stellar dynamos is reviewed. Particular emphasis is placed on the mean-field theory which tries to describe the collective behavior of the magnetic field. In order to understand solar and stellar activity, a quantitatively reliable theory is necessary. Much of the new developments center around magnetic helicity conservation which is seen to be important in numerical simulations. Only a dynamical, explicitly time dependent theory of alpha -quenching is able to describe this behavior correctly.
- Publication:
-
Astronomische Nachrichten
- Pub Date:
- July 2002
- DOI:
- 10.1002/1521-3994(200208)323:3/4<411::AID-ASNA411>3.0.CO;2-H
- arXiv:
- arXiv:astro-ph/0207393
- Bibcode:
- 2002AN....323..411B
- Keywords:
-
- MHD;
- turbulence;
- Astrophysics
- E-Print:
- 6 pages, 4 figures, Astron Nachr (accepted