To understand how planetary systems form in the dusty disks around pre-main-sequence
stars, a detailed knowledge of the structure and evolution of these disks is required …

▪ Abstract We review the wide range of observed properties of Herbig Ae/Be stars and try to
combine this rich data set into a consistent picture of their circumstellar environment and …

Context. Herbig Ae/Be stars (HAeBes) have so far been studied based on relatively small
samples that are scattered throughout the sky. Their fundamental stellar and circumstellar …

Entangled states are central to quantum information processing, including quantum
teleportation, efficient quantum computation and quantum cryptography. In general, these …

We review recent observational and theoretical results on the relationship between
circumstellar accretion disks and jets in young stellar objects. We then present a theoretical …

We have conducted the first systematic study of Herbig Ae/Be stars using the technique of
long baseline stellar interferometry in the near-infrared, with the objective of characterizing …

Coronagraphic imaging of the nearest Herbig Be star with the Space Telescope Imaging
Spectrograph (STIS) on board the Hubble Space Telescope, Ks (2.15 μ m) imaging with …

The accretion of material from protoplanetary disks onto their central stars is a fundamental
process in the evolution of these systems and a key diagnostic in constraining the disk …

We present Hα spectropolarimetry observations of a sample of 23 Herbig Ae/Be stars. A
change in the linear polarization across Hα is detected in a large fraction of the objects …

A star forms when a cloud of dust and gas collapses. It is generally believed that this
collapse first produces a flattened rotating disk,, through which matter is fed onto the …