In the past decade, ALMA observations have revealed that a large fraction of protoplanetary
discs contains rings in the dust continuum. These rings are the locations where pebbles …

High-resolution, millimeter observations of disks at the protoplanetary stage reveal
substructures such as gaps, rings, arcs, spirals, and cavities. While many protoplanetary …

Context. Planetesimal formation is still mysterious. One of the ways to form planetesimals is
to invoke a gas pressure bump in a protoplanetary disc. In our previous paper, we proposed …

Context. Many scenarios have been proposed to avoid known difficulties in planetesimal
formation such as drift or fragmentation barriers. However, in these scenarios planetesimals …

How rapidly a planet grows in mass and how far it may park from the host star depend
sensitively on two nondimensional parameters: Stokes number St and turbulent α. Yet these …

High-resolution millimetre-imaging of protoplanetary discs has revealed many containing
rings and gaps. These rings can contain large quantities of dust, often in excess of 10 M⊕ …

Abstract The Atacama Large Millimeter/submillimeter Array (ALMA) has detected
substructures in numerous protoplanetary disks at radii from a few to over 100 au. These …

Context. The inner regions of protoplanetary discs are prone to thermal instability (TI), which
can significantly impact the thermal and dynamical evolution of planet-forming regions …

Dust rings in protoplanetary discs are often observed in thermal dust emission and could be
favourable environments for planet formation. While dust rings readily form in gas pressure …

Planetesimals or smaller bodies in protoplanetary discs are often considered to form as
pebble piles in current planet formation models. They are supposed to be large but loose …