The current understanding of astrophysical magnetic fields is reviewed, focusing on their
generation and maintenance by turbulence. In the astrophysical context this generation is …

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 …

Theoretical models for the solar dynamo range from simple low-dimensional “toy models” to
complex 3D-MHD simulations. Here we mainly discuss appproaches that are motivated and …

The operation of the solar global dynamo appears to involve many dynamical elements,
including the generation of fields by the intense turbulence of the deep convection zone, the …

Arguments for and against the widely accepted picture of a solar dynamo being seated in
the tachocline are reviewed, and alternative ideas concerning dynamos operating in the …

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 …

The magnetic field of the Sun is the underlying cause of the many diverse phenomena
combined under the heading of solar activity. Here we describe the magnetic field as it …

We develop a model based on three dimensional mean-field magnetohydrodynamics
computations for the generation of large scale magnetic fields in fully convective objects like …

We discuss the observed orbital period modulations in close binaries, and focus on the
mechanism proposed by Applegate relating the changes of the stellar internal rotation …

Magnetism is one of the most pervasive features of the Universe, with planets, stars and
entire galaxies all having associated magnetic fields. All of these fields are generated by the …