Core‐collapse supernovae are dramatic explosions marking the catastrophic end of
massive stars. The only means to get direct information about the supernova engine is from …

Planets appear to form in environments shaped by the gas flowing through protostellar disks
to the central young stars. The flows in turn are governed by orbital angular momentum …

We examine the effects of density stratification on magnetohydrodynamic turbulence driven
by the magnetorotational instability in local simulations that adopt the shearing box …

We study the role of ambipolar diffusion (AD) on the nonlinear evolution of the
magnetorotational instability (MRI) in protoplanetary disks using the strong coupling limit …

Accretion disks are likely threaded by external vertical magnetic flux, which enhances the
level of turbulence via the magnetorotational instability (MRI). Using shearing-box …

The magnetorotational instability (MRI) is the most promising mechanism by which angular
momentum is efficiently transported outwards in astrophysical discs. However, its application …

Context. The poorly-ionized interior of the protoplanetary disk or “dead zone” is the location
where dust coagulation processes may be most efficient. However even here, planetesimal …

Protoplanetary discs are made of gas and dust orbiting a young star. They are also the birth
place of planetary systems, which motivates a large amount of observational and theoretical …

We describe the implementation of the shearing box approximation for the study of the
dynamics of accretion disks in the Athena magnetohydrodynamic (MHD) code. Second …

Aims. The aim of this paper is to investigate the properties of accretion disks threaded by a
weak vertical magnetic field, with a particular focus on the interplay between …