The Sun's magnetic field is the engine and energy source driving all phenomena collectively
defining solar activity, which in turn structures the whole heliosphere and significantly …

This paper reviews recent advances and current debates in modeling the solar cycle as a
hydromagnetic dynamo process. Emphasis is placed on (relatively) simple dynamo models …

This paper reviews recent advances and current debates in modeling the solar cycle as a
hydromagnetic dynamo process. Emphasis is placed on (relatively) simple dynamo models …

Over the past several decades, Flux-Transport Dynamo (FTD) models have emerged as a
popular paradigm for explaining the cyclic nature of solar magnetic activity. Their defining …

We propose a new approach to test possible corrections to Newtonian gravity using solar
physics. The high accuracy of current solar models and new precise observations allow us …

Extracting relevant properties of empirical signals generated by nonlinear, stochastic, and
high-dimensional systems is a challenge of complex systems research. Open questions are …

Meridional circulation is an important ingredient in flux transport dynamo models. We have
studied its importance on the period, the amplitude of the solar cycle, and also in producing …

One of the most striking aspects of the 11-year sunspot cycle is that there have been times in
the past when some cycles went missing, a most well-known example of this being the …

We propose that grand minima in solar activity are caused by simultaneous fluctuations in
the meridional circulation and the Babcock—Leighton mechanism for the poloidal field …

Guided by the recent observational result that the meridional circulation of the Sun becomes
weaker at the time of the sunspot maximum, we have included a parametric quenching of …