106 citations · 771 across the 27 of their papers we have counts for
7 papers · 1 filter
No evidence for absence of solar dynamo synchronization
F. Stefani, J. Beer, T. Weier
Context: The old question of whether the solar dynamo is synchronized by the tidal forces of the orbiting planets has recently received renewed interest, both from the viewpoint of…
Shaken and stirred: When Bond meets Suess-de Vries and Gnevyshev-Ohl
Frank Stefani, Rodion Stepanov, Tom Weier
We argue that the most prominent temporal features of the solar dynamo, in particular the Hale cycle, the Suess-de Vries cycle (associated with variations of the Gnevyshev-Ohl rule…
Phase coherence and phase jumps in the Schwabe cycle
F. Stefani, J. Beer, A. Giesecke +4
Guided by the working hypothesis that the Schwabe cycle of solar activity is synchronized by the 11.07 years alignment cycle of the tidally dominant planets Venus, Earth and Jupite…
Schwabe, Gleissberg, Suess-de Vries: Towards a consistent model of planetary synchronization of solar cycles
F. Stefani, A. Giesecke, M. Seilmayer +2
Aiming at a consistent planetary synchronization model of both short-term and long-term solar cycles, we start with an analysis of Schove's historical data of cycle maxima. Their d…
A model of a tidally synchronized solar dynamo
Frank Stefani, André Giesecke, Tom Weier
We discuss a solar dynamo model of Tayler-Spruit type whose Omega-effect is conventionally produced by a solar-like differential rotation but whose alpha-effect is assumed to be pe…
Numerical simulation of the Tayler instability in liquid metals
Norbert Weber, Vladimir Galindo, Frank Stefani +2
The electrical current through an incompressible, viscous and resistive liquid conductor produces an azimuthal magnetic field that becomes unstable when the corresponding Hartmann…
Experimental evidence for Tayler instability in a liquid metal column
Martin Seilmayer, Frank Stefani, Thomas Gundrum +4
In the current-driven, kink-type Tayler instability (TI) a sufficiently strong azimuthal magnetic field becomes unstable against non-axisymmetric perturbations. The TI has been dis…