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Proceedings Paper

Lessons for WFIRST CGI from ground-based high-contrast systems
Author(s): Vanessa P. Bailey; Michael Bottom; Eric Cady; Faustine Cantalloube; Jozua de Boer; Tyler Groff; John Krist; Maxwell A. Millar-Blanchaer; Arthur Vigan; Jeffrey Chilcote; Elodie Choquet; Robert J. De Rosa; Julien H. Girard; Olivier Guyon; Brian Kern; Anne-Marie Lagrange; Bruce Macintosh; Jared R. Males; Christian Marois; Tiffany Meshkat; Julien Milli; Mamadoue N'Diaye; Henry Ngo; Eric L. Nielsen; Jason Rhodes; Garreth Ruane; Rob G. van Holstein; Jason J. Wang; Wenhao Xuan
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Paper Abstract

The 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.

Paper Details

Date Published: 9 August 2018
PDF: 13 pages
Proc. SPIE 10698, Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave, 106986P (9 August 2018); doi: 10.1117/12.2313820
Show Author Affiliations
Vanessa P. Bailey, Jet Propulsion Lab. (United States)
Michael Bottom, Jet Propulsion Lab. (United States)
Eric Cady, Jet Propulsion Lab. (United States)
Faustine Cantalloube, Max Planck Institute for Astronomy (Germany)
Jozua de Boer, Leiden Observatory (Netherlands)
Tyler Groff, NASA Goddard Space Flight Ctr. (United States)
John Krist, Jet Propulsion Lab. (United States)
Maxwell A. Millar-Blanchaer, Jet Propulsion Lab. (United States)
Arthur Vigan, Aix Marseille Univ., CNRS, CNES, LAM (France)
Jeffrey Chilcote, Univ. of Notre Dame (United States)
Stanford Univ. (United States)
Elodie Choquet, California Institute of Technology (United States)
Robert J. De Rosa, Univ. of California, Berkeley (United States)
Julien H. Girard, Space Telescope Science Institute (United States)
Univ. Grenoble Alpes, CNRS, IPAG (France)
Olivier Guyon, Subaru Telescope (Japan)
Brian Kern, Jet Propulsion Lab. (United States)
Anne-Marie Lagrange, Univ. Grenoble Alpes, CNRS, IPAG (France)
Bruce Macintosh, Stanford Univ. (United States)
Jared R. Males, The Univ. of Arizona (United States)
Christian Marois, National Research Council of Canada (Canada)
Tiffany Meshkat, Caltech (United States)
Julien Milli, European Southern Observatory (Germany)
Mamadoue N'Diaye, Univ. Cote d'Azur, Observatoire de la Cote d'Azur, CNRS, Lab. Lagrange (France)
Henry Ngo, National Research Council of Canada (Canada)
Eric L. Nielsen, Stanford Univ. (United States)
Jason Rhodes, Jet Propulsion Lab. (United States)
Garreth Ruane, Caltech (United States)
Rob G. van Holstein, Leiden Observatory (Netherlands)
Jason J. Wang, Univ. of California, Berkeley (United States)
Wenhao Xuan, Caltech (United States)

Published in SPIE Proceedings Vol. 10698:
Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave
Makenzie Lystrup; Howard A. MacEwen; Giovanni G. Fazio; Natalie Batalha; Nicholas Siegler; Edward C. Tong, Editor(s)

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