Discs of gas and dust around million-year-old stars are a by-product of the star formation
process and provide the raw material to form planets. Hence, their evolution and dispersal …

The formation of planetesimals, the kilometer-sized planetary precursors, is still a puzzling
process. Considerable progress has been made over the past years in the physical …

" The study of planet formation has a long history. The idea that the Solar System formed
from a rotating disk of gas and dust-the Nebula Hypothesis-dates back to the writings of …

Circumstellar disks are thought to experience a rapid" transition" phase in their evolution that
can have a considerable impact on the formation and early development of planetary …

Flattened, rotating disks of cool dust and gas extending for tens to hundreds of astronomical
units are found around almost all low-mass stars shortly after their birth. These disks …

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 …

We present the results of a high angular resolution (0 farcs 3≈ 40 AU) Submillimeter Array
survey of the 345 GHz (870 μm) thermal continuum emission from nine of the brightest, and …

By carrying out two-dimensional two-fluid global simulations, we have studied the response
of dust to gap formation by a single planet in the gaseous component of a protoplanetary …

It has been suggested that the gaps and cavities recently discovered in transitional disks are
opened by planets. To explore this scenario, we combine two-dimensional two fluid (gas+ …

We present new results from a significant extension of our previous high angular resolution
(0 farcs 3≈ 40 AU) submillimeter array survey of the 340 GHz (880 μm) thermal continuum …