High-contrast adaptive optics (AO) imaging is a powerful technique to probe the
architectures of planetary systems from the outside-in and survey the atmospheres of self …

High-contrast observations in optical and infrared astronomy are defined as any observation
requiring a technique to reveal a celestial object of interest that is in such close angular …

Observations of circumstellar environments that look for the direct signal of exoplanets and
the scattered light from disks have significant instrumental implications. In the past 15 years …

In the context of high dynamic range imaging, this study presents a breakthrough for the
understanding of apodized pupil Lyot coronagraphs, making them available for arbitrary …

This paper is concerned with the theoretical properties of high-contrast coronagraphic
images in the context of exoplanet searches. We derive and analyze the statistical properties …

The major obstacle to the direct detection of companions to nearby stars is the
overwhelming brightness of the host star. Current instruments employing the combination of …

We propose a solution to the problem of astrometric and photometric calibration of
coronagraphic images with a simple optical device that, in theory, is easy to use. Our design …

Coronagraphs of the apodized pupil and shaped pupil varieties use the Fraunhofer
diffraction properties of amplitude masks to create regions of high contrast in the vicinity of a …

In this Letter we study the utility and limitations of ground-based coronagraphy with adaptive
optics (AO). In very high AO correction regimes, residual speckles are pinned on the …

We demonstrate the versatility of a dual imaging polarimeter working in tandem with a Lyot
coronagraph and adaptive optics to suppress the highly static speckle noise pattern—the …