Etude des techniques d’imagerie appliquees a l’observation des planetes simulation de la coronographie interferometrique

Abstract

Current imaging techniques applied to planet hunting aim to measure the effect or perturbation a planet exerts on its host star—such as through indirect methods like astrometry and radial velocity. In contrast, direct techniques aim to isolate photons from the planetary companion; several approaches are possible, including coronagraphy and nulling interferometry. Nulling (destructive) interferometry is a technique that reduces the star's energy contribution, thereby enabling the planet to be detected with high angular resolution. Our work involves simulating interferometric coronagraphy using various apodization methods.