Long-term Variation of Solar Activity by a Dynamo Based on Magnetic Flux Tubes

Schussler, M.; Schmitt, D.; Ferriz-Mas, A.
Referencia bibliográfica

1st Advances in Solar Physics Euroconference. Advances in Physics of Sunspots, ASP Conf. Ser. Vol. 118., Eds.: B. Schmieder, J.C. del Toro Iniesta, & M. Vazquez, p. 39.

Fecha de publicación:
0
1997
Número de autores
3
Número de autores del IAC
1
Número de citas
13
Número de citas referidas
8
Descripción
We show that cyclic activity and Maunder-type grand minima can be explained by a dynamo driven by the instability of magnetic flux tubes in the overshoot layer at the bottom of the solar convection zone. The combination of a threshold in field strength for dynamo action and random fluctuations due to magnetic fields from the turbulent convection zone leads to activity cycles with strong amplitude variations and the occasional appearance of grand minima.