After decades of fast-paced technical advances, optical/infrared (O/IR) interferometry has
seen a revolution in recent years:▪ The GRAVITY instrument at the Very Large Telescope …

Protoplanetary disks surrounding young stars are the birth place of planets. Of particular
interest are the transition disks with large inner dust cavities of tens of au, hinting at the …

GRAVITY is a new instrument to coherently combine the light of the European Southern
Observatory Very Large Telescope Interferometer to form a telescope with an equivalent 130 …

Context. Transition disks are protoplanetary disks with dust-depleted cavities, possibly
indicating substantial clearing of their dust content by a massive companion. For several …

Transition disks with large inner dust cavities are thought to host massive companions.
However, the disk structure inside the companion orbit and how material flows toward an …

Aims. We use Gaia Data Release 2 (DR2) to place 252 Herbig Ae/Be stars in the
Hertzsprung–Russell diagram and investigate their characteristics and properties. Methods …

To date, nearly two hundred planet-forming disks have been imaged at high resolution. Our
propensity to study bright and extended objects does, however, bias our view of the disk …

We present an overview and first results from a M-band spectroscopic survey of planet-
forming disks performed with iSHELL on the Infrared Telescope Facility, using two slits that …

Context. While planet formation is thought to occur early in the history of a protoplanetary
disk, the presence of planets embedded in disks, or of other processes driving disk …

Abstract Herbig Ae/Be stars are young contracting stars on the radiative track in the HR
diagram on their way to the main sequence. These stars provide a valuable link between …