Abstract
The diversity of planetary systems discovered in recent years has reinforced the interest in the conditions of the formation of stars and their planetary systems. The new generation of imaging instruments at the VLTI (PIONIER, GRAVITY, MATISSE) and CHARA (MYSTIC, MIRC-X) provides not only the high spatial and spectral resolution necessary to study YSOs but also high astrometric precision and high sensitivity. This makes it possible to extend the study of stellar parameters, the dust distribution and composition in protoplanetary disks, and gas accretion and outflows to fainter objects. It also allows us to investigate the different stages of star and planet formation, from embedded objects over protoplanetary and debris disks to the orbits and atmospheres of planets. The use of arrays with four or even six telescopes provides more opportunities for image reconstruction, to understand complex structures. This paper is a review of recent results obtained on those topics.
Published Version
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