We present a statistical analysis of the first 300 stars observed by the Gemini Planet Imager
Exoplanet Survey. This subsample includes six detected planets and three brown dwarfs; …

The Gemini Planet Imager is a dedicated facility for directly imaging and spectroscopically
characterizing extrasolar planets. It combines a very high-order adaptive optics system, a …

We describe a new method to achieve point-spread function (PSF) subtractions for high-
contrast imaging using principal component analysis that is applicable to both point sources …

Angular differential imaging is a high-contrast imaging technique that reduces quasistatic
speckle noise and facilitates the detection of nearby companions. A sequence of images is …

Determining the atmospheric structure and chemical composition of an exoplanet remains a
formidable goal. Fortunately, advancements in the study of exoplanets and their …

Direct imaging of exoplanets is limited by bright quasi-static speckles in the point-spread
function (PSF) of the central star. This limitation can be reduced by subtraction of reference …

Context. Polarimetric imaging is one of the most effective techniques for high-contrast
imaging and for the characterization of protoplanetary disks, and it has the potential of …

The HR 8799 system uniquely harbors four young super-Jupiters whose orbits can provide
insights into the system's dynamical history and constrain the masses of the planets …

Direct imaging of gas giant exoplanets provides information on their atmospheres and the
architectures of planetary systems. However, few planets have been detected in blind …

Benchmark brown dwarf companions with well-determined ages and model-independent
masses are powerful tools to test substellar evolutionary models and probe the formation of …