39 citations · 39 across the 1 of their papers we have counts for
7 papers · 1 filter
Fast computation of Lyot-style coronagraph propagation
Remi Soummer, Laurent Pueyo, Anand Sivaramakrishnan +1
We present a new method for numerical propagation through Lyot-style coronagraphs using finite occulting masks. Standard methods for coronagraphic simulations involve Fast Fourier…
Speckle noise and dynamic range in coronagraphic images
Rémi Soummer, André Ferrari, Claude Aime +1
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 Strehl Ratio in Adaptive Optics Images: Statistics and Estimation
Rémi Soummer, André Ferrari
Statistical properties of the intensity in adaptive optics images are usually modeled with a Rician distribution. We study the central point of the image, where this model is inapp…
Introduction to stellar coronagraphy
A. Ferrari, R. Soummer, C. Aime
This paper gives a simple and original presentation of various coronagraphs inherited from the Lyot coronagraph. We first present the Lyot and Roddier phase mask coronagraphs and s…
Temporal Evolution of Coronagraphic Dynamic Range, and Constraints on Companions to Vega
Sasha Hinkley, Ben R. Oppenheimer, Remi Soummer +8
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 adaptive…
Low Order Aberrations in Band-Limited Lyot Coronagraphs
Anand Sivaramakrishnan, Remi Soummer, Allic V. Sivaramakrishnan +3
We study the way Lyot coronagraphs with unapodized entrance pupils respond to small, low order phase aberrations. This study is applicable to ground-based adaptive optics coronagra…