Recent observations have suggested that circumstellar disks may commonly form around
young stellar objects. Although the formation of circumstellar disks can be a natural result of …

We model the coagulation and fragmentation of dust grains during the protostellar collapse
with our newly developed shark code. It solves the gas-dust hydrodynamics in a spherical …

We review the numerical techniques for ideal and non-ideal magneto-hydrodynamics (MHD)
used in the context of star formation simulations. We outline the specific challenges offered …

Context. Planets form in protoplanetary discs. Their masses, distribution, and orbits
sensitively depend on the structure of the protoplanetary discs. However, what sets the initial …

We present the first results from SPHINX-MHD, a suite of cosmological radiation-
magnetohydrodynamics simulations designed to study the impact of primordial magnetic …

Context. Dust plays a key role during star, disk, and planet formation. Yet, its dynamics
during the protostellar collapse remain a poorly investigated field. Recent studies seem to …

Dust grains influence many aspects of star formation, including planet formation and the
opacities for radiative transfer, chemistry, and the magnetic field via Ohmic, Hall, as well as …

Context. Between the two research communities that study star formation and protoplanetary
disk evolution, only a few efforts have been made to understand and bridge the gap …

Non-ideal magnetohydrodynamic (MHD) processes–namely Ohmic resistivity, ambipolar
diffusion, and the Hall effect–modify the early stages of the star formation process and the …

Especially in cold and high-density regions, the assumptions of ideal
magnetohydrodynamics (MHD) can break down, making first order non-ideal terms such as …