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Lessons for WFIRST CGI from Ground-Based High-Contrast SystemsThe Coronagraph Instrument (CGI) for NASA’s Wide Field Infrared Survey Telescope (WFIRST) will constitute a dramatic step forward for high-contrast imaging, integral field spectroscopy, and polarimetry of exoplanets and circumstellar disks, aiming to improve upon the sensitivity of current ground-based direct imaging facilities by 2–3 orders of magnitude. Furthermore, CGI will serve as a pathfinder for future exo-Earth imaging and characterization missions by demonstrating wavefront control, coronagraphy, and spectral retrieval in a new contrast regime, and by validating instrument and telescope models at unprecedented levels of precision. To achieve this jump in performance, it is critical to draw on the experience of ground-based high-contrast facilities. We discuss several areas of relevant commonalities, including: wavefront control, post-processing of integral field unit data, and calibration and observing strategies.
Document ID
20210008777
Acquisition Source
Jet Propulsion Laboratory
Document Type
Preprint (Draft being sent to journal)
External Source(s)
Authors
Xuan, Wenhao
Wang, Jason J.
van Holstein, Rob G.
Ruane, Garreth
Rhodes, Jason
Nielsen, Eric L.
"N'Diaye, Mamadou", 'Ngo, Henry
Milli, Julien
Meshkat, Tiffany
Marois, Christian
Males, Jared R.
Macintosh, Bruce
Lagrange, Anne-Marie
Kern, Brian
Guyon, Olivier
Girard, Julien H.
De Rosa, Robert J.
Choquet, Elodie
Chilcote, Jeffrey
Vigan, Arthur
Millar-Blanchaer, Maxwell
Krist, John
Groff, Tyler
de Boer, Jozua
Cantalloube, Faustine
Cady, Eric
Bottom, Michael
Bailey, Vanessa P.
Date Acquired
June 12, 2018
Publication Date
June 12, 2018
Publication Information
Publisher: Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2018
Distribution Limits
Public
Copyright
Other
Technical Review

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