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High-contrast imager for Complex Aperture Telescopes (HiCAT): 2. Design overview and first light results
Mamadou N'Diaye, Elodie Choquet, Sylvain Egron +13
We present a new high-contrast imaging testbed designed to provide complete solutions in wavefront sensing, control and starlight suppression with complex aperture telescopes. The…
High-contrast imager for Complex Aperture Telescopes (HiCAT): 1. Testbed design
Mamadou N'Diaye, Elodie Choquet, Laurent Pueyo +11
Searching for nearby habitable worlds with direct imaging and spectroscopy will require a telescope large enough to provide angular resolution and sensitivity to planets around a s…
Archival Legacy Investigations of Circumstellar Environments: Overview and First Results
Élodie Choquet, Laurent Pueyo, J. Brendan Hagan +12
We are currently conducting a comprehensive and consistent re-processing of archival HST-NICMOS coronagraphic surveys using advanced PSF subtraction methods, entitled the Archival…
James Webb Space Telescope Optical Simulation Testbed I: Overview and First Results
Marshall D. Perrin, Rémi Soummer, Élodie Choquet +13
The James Webb Space Telescope (JWST) Optical Simulation Testbed (JOST) is a tabletop workbench to study aspects of wavefront sensing and control for a segmented space telescope, i…
New constraints on the dust surrounding HR 4796A
Julien Milli, Dimitri Mawet, Christophe Pinte +7
HR 4796A is surrounded by a well-structured and very bright circumstellar disc shaped like an annulus with many interesting features: very sharp inner and outer edges, brightness a…
James Webb Space Telescope Optical Simulation Testbed II. Design of a Three-Lens Anastigmat Telescope Simulator
Élodie Choquet, Olivier Levecq, Mamadou N'Diaye +2
The James Webb Space Telescope (JWST) Optical Simulation Testbed (JOST) is a tabletop experiment designed to reproduce the main aspects of wavefront sensing and control (WFSC) for…