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 …

In circumstellar disks around T Tauri stars, visible and near-infrared stellar irradiation is
intercepted by dust at the disk's optical surface and reprocessed into thermal infrared. It …

The streaming instability is thought to play a central role in the early stages of planet
formation by enabling the efficient bypass of a number of barriers hindering the formation of …

Context. Pebbles drifting past a disk-embedded low-mass planet develop asymmetries in
their distribution and exert a substantial gravitational torque on the planet, thus modifying its …

The streaming instability for solid particles in protoplanetary disks is reexamined assuming
the familiar alpha (α) model for isotropic turbulence. Turbulence always reduces the growth …

ABSTRACT A recent study suggests that the streaming instability, one of the leading
mechanisms for driving the formation of planetesimals, may not be as efficient as previously …

We study how the interaction between the streaming instability (SI) and intrinsic gas-phase
turbulence affects planetesimal formation via gravitational collapse in protoplanetary disks …

We introduce a polydisperse version of the streaming instability (SI), where the dust
component is treated as a continuum of sizes. We show that its behaviour is remarkably …

Substructures are ubiquitous in high resolution (sub-) millimeter continuum observations of
circumstellar discs. They are possibly caused by forming planets embedded in their disc. To …

The streaming instability is a fundamental process that can drive dust–gas dynamics and
ultimately planetesimal formation in protoplanetary discs. As a linear instability, it has been …