Lessons for WFIRST CGI from ground-based high-contrast systems - Archive ouverte HAL
Conference Papers Year : 2018

Lessons for WFIRST CGI from ground-based high-contrast systems

Vanessa P. Bailey
  • Function : Author
Michael Bottom
  • Function : Author
Eric Cady
  • Function : Author
Jozua de Boer
  • Function : Author
Tyler Groff
John Krist
  • Function : Author
Maxwell A. Millar-Blanchaer
  • Function : Author
Arthur Vigan
Jeffrey Chilcote
Elodie Choquet
Robert J. de Rosa
  • Function : Author
Olivier Guyon
Brian Kern
  • Function : Author
Bruce Macintosh
Jared R. Males
  • Function : Author
Christian Marois
Tiffany Meshkat
  • Function : Author
Julien Milli
Mamadou N'Diaye
Henry Ngo
Eric L. Nielsen
  • Function : Author
Garreth Ruane
  • Function : Author
Rob G. van Holstein
Jason J. Wang
  • Function : Author
Wenhao Xuan
  • Function : Author

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.
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Dates and versions

hal-02118127 , version 1 (29-10-2024)

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Vanessa P. Bailey, Michael Bottom, Eric Cady, Faustine Cantalloube, Jozua de Boer, et al.. Lessons for WFIRST CGI from ground-based high-contrast systems. Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave, Jun 2018, Austin, France. pp.241, ⟨10.1117/12.2313820⟩. ⟨hal-02118127⟩
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