activity
20162026
most citedRieger, Schwabe, Suess-de Vries: The Sunny Beats of Resonance

2 citations · 2 across the 5 of their papers we have counts for

collaborators

6 papers

astro-ph.SR2026

From the QBO to Rieger-type periods: Explaining extreme solar events by tidally triggered magneto-Rossby waves

F. Stefani, G. M. Horstmann, G. Mamatsashvili +1

It has recently been demonstrated that the occurrence of extreme solar events is governed by a phase-stable period close to 1.723 years (629.29 days). According to our previously d…

astro-ph.SR2026

An optimized tidal-trigger model of the QBO, and some implications for the Carrington event

F. Stefani, G. M. Horstmann, G. Mamatsashvili +1

Magneto-Rossby waves in the solar tachocline are currently being discussed as a potential cause of the quasi-biennial oscillation (QBO). By analyzing sequences of ground-level enha…

astro-ph.SR2025

Reappraising the Elatina series: What if the Solar Interpretation Were Correct?

F. Stefani, M. Gugliotta, G. M. Horstmann +2

We revisit the sedimentary laminae from the Neoproterozoic Elatina Formation of South Australia. These were first interpreted as varves driven by solar activity and later as tidali…

astro-ph.SR2025

Adding further pieces to the synchronization puzzle: QBO, bimodality, and phase jumps

F. Stefani, G. M. Horstmann, G. Mamatsashvili +1

This work builds on a recently developed self-consistent synchronization model of the solar dynamo which attempts to explain Rieger-type periods, the Schwabe/Hale cycle and the Sue…

astro-ph.SR2023★ 2 cited

Rieger, Schwabe, Suess-de Vries: The Sunny Beats of Resonance

F. Stefani, G. M. Horstmann, M. Klevs +2

We propose a self-consistent explanation of Rieger-type periodicities, the Schwabe cycle, and the Suess-de Vries cycle of the solar dynamo in terms of resonances of various wave ph…

astro-ph.SR2016

The Tayler instability at low magnetic Prandtl numbers: Chiral symmetry breaking and synchronizable helicity oscillations

F. Stefani, V. Galindo, A. Giesecke +2

The current-driven, kink-type Tayler instability (TI) is a key ingredient of the Tayler-Spruit dynamo model for the generation of stellar magnetic fields, but is also discussed as…