Adaptive optics (AO) is a technique that corrects for optical aberrations. It was originally
proposed to correct for the blurring effect of atmospheric turbulence on images in ground …

Context. Reference-star differential imaging (RDI) is a promising technique in high-contrast
imaging that is thought to be more sensitive to exoplanets and disks than angular differential …

Context. The diverse morphology among protoplanetary disks may result from planet-disk
interactions, suggesting the presence of planets undergoing formation. The characterization …

Context. Observations of debris disks have significantly improved over the past decades,
both in terms of sensitivity and spatial resolution. At near-infrared wavelengths, new …

Context. Multiwavelength scattered light imaging of debris disks may inform dust properties
including typical size and mineral composition. Existing studies have investigated a small …

The vertical structure of debris discs provides clues about their dynamical evolution and the
collision rate of the unseen planetesimals. Thanks to the ever-increasing angular resolution …

Spatially resolved images of debris discs are necessary to determine disc morphological
properties and the scattering phase function (SPF) thatantifies the brightness of scattered …

L'exoplanétologie est un domaine très actif de l'astronomie moderne avec des questions
encore ouvertes: comment les systèmes planétaires se forment-ils et évoluent-ils; pourquoi …

Abstract The Gemini Planet Imager (GPI) has excelled in imaging debris disks in the near-
infrared. The GPI Exoplanet Survey imaged 24 debris disks in polarized H-band light, while …

Context. Scattered-light images reveal that a significant fraction of debris discs consist of a
bright ring beyond which extends a wide halo. This halo is expected and should be made of …