Debris disks are tenuous, dust-dominated disks commonly observed around stars over a
wide range of ages. Those around main sequence stars are analogous to the Solar System's …

Circumstellar dust exists around several hundred main sequence stars. For the youngest
stars, that dust could be a remnant of the protoplanetary disk. Mostly it is inferred to be …

▪ Abstract Until the late 1990s the rich Hyades and the sparse UMa clusters were the only
coeval, comoving concentrations of stars known within 60 pc of Earth. Both are hundreds of …

The direct characterization of exoplanetary systems with high-contrast imaging is among the
highest priorities for the broader exoplanet community. As large space missions will be …

We study the radial migration of dust particles in accreting protostellar disks analogous to
the primordial solar nebula. Our main objective is to determine the retention efficiency of …

The spectral energy distributions (SEDs) of some T Tauri stars display a deficit of near-
infrared flux that could be a consequence of an embedded Jupiter-mass planet partially …

A key stage in planet formation is the evolution of a gaseous and magnetized solar nebula.
However, the lifetime of the nebular magnetic field and nebula are poorly constrained. We …

We analyze the gas accretion flow through a planet-produced gap in a protoplanetary disk.
We adopt the α-disk model and ignore effects of planetary migration. We develop a …

This paper uses observations of dusty debris discs, including a growing number of gas
detections in these systems, to test our understanding of the origin and evolution of this …

Radial velocity and transit surveys indicate that solar-type stars bear super-Earths, with
masses up to∼ 20 M⊕ and periods up to a few months, that are more common than those …