The universe is magnetized on all scales probed so far. On the largest scales, galaxies and
galaxy clusters host magnetic fields at the micro Gauss level coherent on scales up to ten …

Constraining dynamo theories of magnetic field origin by observation is indispensable but
challenging, in part because the basic quantities measured by observers and predicted by …

The fact that one can associate thermodynamic properties with horizons brings together
principles of quantum theory, gravitation and thermodynamics and possibly offers a window …

This three-volume series presents the ideas, models and approaches essential to
understanding plasma dynamics and self-organization for researchers and graduate …

Several recent advances in turbulent dynamo theory are reviewed. High resolution
simulations of small-scale and large-scale dynamo action in periodic domains are compared …

Recent advances in mean-field theory are reviewed and applications to the Sun, late-type
stars, accretion disks, galaxies and the early Universe are discussed. We focus particularly …

The origin and maintenance of coherent magnetic fields in the Universe is reviewed with an
emphasis on the possible challenges that arise in their theoretical understanding. We begin …

We present a simple semi-analytical model of non-linear, mean field galactic dynamos and
use it to study the effects of various magnetic helicity fluxes. The dynamo equations are …

Aims. To study the existence of large-scale convective dynamos under the influence of shear
and rotation. Methods. Three-dimensional numerical simulations of penetrative …

Magnetic fields of laboratory, planetary, stellar, and galactic plasmas commonly exhibit
significant order on large temporal or spatial scales compared to the otherwise random …