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 …

These lecture notes are based on a tutorial given in 2017 at a plasma physics winter school
in Les Houches. Their aim is to provide a self-contained graduate-student level introduction …

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 formation and evolution of a wide class of astrophysical objects are governed by
turbulent, magnetized accretion disks. Understanding their secular dynamics is of primary …

In this work the authors draw upon their expertise in geophysical and astrophysical MHD to
explore the motion of electrically conducting fluids, the so-called dynamo effect, and …

Magnetic fields are observed in massive Ap/Bp stars and are presumably present in the
radiative zone of solar-like stars. To date, there is no clear understanding of the dynamics of …

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

Our understanding of large-scale magnetic fields in stellar radiative zones remains
fragmented and incomplete. Such magnetic fields, which must be produced by some form of …

Magnetorotational instability–driven (MRI-driven) turbulence and dynamo phenomena are
analyzed using direct statistical simulations. Our approach begins by developing a unified …

Hydromagnetic turbulence affects the evolution of large-scale magnetic fields through mean-
field effects like turbulent diffusion and the α effect. For stronger fields, these effects are …