A large fraction of the protoplanetary disks observed with ALMA display multiple well-
defined and nearly perfectly circular rings in the continuum, in many cases with substantial …

Context. The formation stage of planetesimals represents a major gap in our understanding
of the planet formation process. Late-stage planet accretion models typically make arbitrary …

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 …

Turbulence plays a key role in the transport of pebble-sized particles. It also affects the
ability of pebbles to be accreted by protoplanets because it stirs pebbles out of the disk …

Aerodynamic theory predicts that dust grains in protoplanetary disks will drift radially inward
on comparatively short timescales. In this context, it has long been known that the presence …

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 …

ABSTRACT A growing number of debris discs have been detected around metal-polluted
white dwarfs. They are thought to be originated from tidally disrupted exoplanetary bodies …

We study the dynamics of a viscous protoplanetary disc hosting a population of dust grains
with a range of sizes. We compute steady-state solutions and show that the radial motion of …

The standard core accretion model for planetesimal formation in protoplanetary discs
(PPDs) is subject to a number of challenges. One is related to the vertical settling of dust to …

We perform simulations of the dust and gas disk evolution to investigate the observational
features of a dust pileup at the dead-zone inner edge. We show that the total mass of …