Lucie Leboulleux

Tradeoff between segment density and IWA for high-contrast imaging of exoplanets with a large segmented space mission

Imaging Earth-like exoplanets with coronagraphs on future large segmented space telescopes such as the Habitable Worlds Observatory requires contrasts down to $10^{-10}$ at separations below 100 mas, imposing segment phasing control down to a few picometers. We evaluate how this constraint can be relaxed by optimizing...