Star and planet formation are the complex outcomes of gravitational collapse and angular
momentum transport mediated by protostellar and protoplanetary disks. In this review, we …

The characterization of exoplanets and their birth protoplanetary disks has enormously
advanced in the last decade. Benefitting from that, our global understanding of the planet …

Context. Aims. The long-term evolution of a circumstellar disk starting from its formation and
ending in the T Tauri phase was simulated numerically with the purpose of studying the …

Enhancing the local dust-to-gas ratio in protoplanetary discs is a necessary first step to
planetesimal formation. In laminar discs, dust settling is an efficient mechanism to raise the …

Recently, the gravitational instability (GI) model of giant planet and brown dwarf formation
has been revisited and recast into what is often referred to as the 'tidal …

In this paper, we discuss the influence of gravitational instabilities in massive protostellar
discs on the dynamics of dust grains. Starting from a smoothed particle hydrodynamics …

Combining 3D smoothed-particle hydrodynamics and Monte Carlo radiative transfer
calculations, we examine the morphology of spiral density waves induced by gravitational …

Giant planets have been discovered at large separations from the central star. Moreover, a
striking number of young circumstellar disks have gas and/or dust gaps at large orbital …

Circumstellar discs likely have a short window when they are self-gravitating and prone to
the effects of disc instability, but during this time the seeds of planet formation can be sown. It …

The discovery of over 50 planets around evolved stars and more than 35 debris discs
orbiting white dwarfs highlight the increasing need to understand small body evolution …