The Coronagraph Instrument (CGI) on the Nancy Grace Roman Space Telescope will
demonstrate the highcontrast technology necessary for visible-light exoplanet imaging and …

The expected yield of potentially Earth-like planets is a useful metric for designing future
exoplanet-imaging missions. Recent yield studies of direct-imaging missions have focused …

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 …

The unparalleled theoretical performance of an ideal vector vortex coronagraph makes it
one of the most promising technologies for directly imaging exoplanets with a future, off-axis …

The Roman Space Telescope will have the first advanced coronagraph in space, with
deformable mirrors (DMs) for wavefront control (WFC), low-order wavefront sensing and …

Direct detection and characterization of extrasolar planets has become possible with
powerful new coronagraphs on ground-based telescopes. Space telescopes with active …

Direct imaging of an Earth-like exoplanet requires starlight suppression with a contrast ratio
on the order of 1♦ 10-10 at small angular separations of 100 milliarcseconds or less in …

We summarize the current best polychromatic (∼ 10% to 20% bandwidth) contrast
performance demonstrated in the laboratory by different starlight suppression approaches …

The Optimal Optical Coronagraph (OOC) Workshop held at the Lorentz Center in September
2017 in Leiden, the Netherlands, gathered a diverse group of 25 researchers working on …

Detection and characterization of Earth-like planets around nearby stars using the direct
imaging technique is a key scientific objective of future NASA astrophysics flagship …