Over the last two decades, several thousand exoplanets have been identified, and their
study has become a high scientific priority. Direct imaging of nearby exoplanets and the …

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 …

In this paper, we review the impact of small sample statistics on detection thresholds and
corresponding confidence levels (CLs) in high-contrast imaging at small angles. When …

The Gemini Planet Imager (GPI) is a facility instrument under construction for the 8-m Gemini
South telescope. It combines a 1500 subaperture AO system using a MEMS deformable …

We apply the vectorized non-negative matrix factorization (NMF) method to the post-
processing of the direct imaging data of exoplanetary systems such as circumstellar disks …

In recent years, there has been intensive research into the direct detection of exoplanets.
Data obtained in the future with high-contrast imaging instruments, optimized for the direct …

ABSTRACT A new class of high-contrast image analysis algorithms that empirically fit and
subtract systematic noise has lead to recent discoveries of faint exoplanet/substellar …

We present a new method for numerical propagation through Lyot-style coronagraphs using
finite occulting masks. Standard methods for coronagraphic simulations involve Fast Fourier …

We describe a new instrument that forms the core of a long-term high contrast imaging
program at the 200 inch (5 m) Hale Telescope at Palomar Observatory. The primary …

We present a new matched-filter algorithm for direct detection of point sources in the
immediate vicinity of bright stars. The stellar point-spread function (PSF) is first subtracted …