We investigate formation mechanisms for icy super-Earth-mass planets orbiting at 2-20 AU around 0.1-0.5 M <SUB>?</SUB> stars. A large ensemble of coagulation calculations demonstrates a new formation channel: disks composed ...

We describe an extensive suite of numerical calculations for the collisional evolution of irregular satellite swarms around 1 300 {M}<SUB>\oplus </SUB> planets orbiting at 120 AU in the Fomalhaut system. For 10 100 ...

We consider the formation of satellites around the Pluto Charon binary. An early collision between the two partners likely produced the binary and a narrow ring of debris, out of which arose the moons Styx, Nix, Kerberos, ...

We consider the ability of three models impacts, captures, and collisional cascades to account for a bright cloud of dust in Fomalhaut b. Our analysis is based on a novel approach to the power-law size distribution of solid ...

We investigate pathways for the formation of icy super-Earth mass planets orbiting at 125 250 AU around a 1 {{M}<SUB>? </SUB>} star. An extensive suite of coagulation calculations demonstrates that swarms of 1 cm 10 m ...

The similar orbital distances and detection rates of debris disks and the prominent rings observed in protoplanetary disks suggest a potential connection between these structures. We explore this connection with new ...

The magnetic field of a host star can impact the orbit of a stellar partner, planet, or asteroid if the orbiting body is itself magnetic or electrically conducting. Here, we focus on the instantaneous magnetic forces on ...

We investigate the formation of icy super-Earth mass planets within a gravitationally unstable ring of solids orbiting at 250 750 AU around a 1 {M}<SUB>? </SUB> star. Coagulation calculations demonstrate that a system of ...