CATKit2-HCI: a collaborative framework for advancing high-contrast coronagraph testbeds

Space Telescopes and Instrumentation: Optical, Infrared, and Millimeter Wave, pp. 233

Abstract

High-contrast exoplanet imaging requires dedicated laboratory testbeds for the development and validation of coronagraph architectures, wavefront sensing and control methods, calibration strategies, and system-level observing concepts. These testbeds often share similar software needs, yet many tools are developed independently at each institution. The CATKit2-High-Contrast-Imaging collaboration, or CATKit2-HCI, addresses this gap by providing a shared software framework for reusable HCI infrastructure. Built on top of CATKit2, an opensource hardware control and synchronization framework originally developed for the High-contrast Imager for Complex Aperture Telescopes (HiCAT) testbed at the Space Telescope Science Institute, CATKit2-HCI provides the collaborative layer for HCI-specific algorithms, calibration tools, diagnostics, visualization, and performance metrics. The collaboration currently includes multiple coronagraph testbeds in the United States and Europe. Its goals are to reduce duplicated software development, improve code quality through shared review, enable more direct comparison of results across facilities, and facilitate the movement of students, postdoctoral researchers, and collaborators between laboratories. We describe the motivation, architecture, collaboration model, shared technical capabilities, and early cross-testbed examples of CATKit2-HCI as a framework for accelerating coronagraph technology development.

Authors 22

1. Rémi Soummer

   Space Telescope Science Institute

   Affiliation as printed

   Space Telescope Science Institute (United States)

2. Iva Laginja Aachen

   Leiden University · Centre National de la Recherche Scientifique · Université Côte d'Azur · Université Paris Cité · Université Paris Sciences et Lettres · Observatoire de Paris · Sorbonne Université · Lagrange Laboratory · Observatoire de la Côte d’Azur

   Affiliation as printed

   LIRA, Observatoire de Paris, Univ PSL, Sorbonne Univ, Univ. Paris Cité, CY Cergy Paris Univ., CNRS (France)

   NOVA, Leiden Univ. (France)

   Université Côte d’Azur, Observatoire de la Côte d’Azur, CNRS, Lab. Lagrange (France)

3. Emiel H. Por

   Space Telescope Science Institute

   Affiliation as printed

   Space Telescope Science Institute (United States)

4. Raphaël Pourcelot

   Max Planck Institute for Astronomy

   Affiliation as printed

   Max-Planck-Institut für Astronomie (Germany)

5. Sarah Steiger

   Space Telescope Science Institute

   Affiliation as printed

   Space Telescope Science Institute (United States)

6. Bryony F. Nickson

   Space Telescope Science Institute

   Affiliation as printed

   Space Telescope Science Institute (United States)

7. Alexis Lau

   Centre National de la Recherche Scientifique · Aix-Marseille Université

   Affiliation as printed

   Aix Marseille Université, CNRS, CNES, LAM (France)

8. Pierre Baudoz

   Centre National de la Recherche Scientifique · Université Paris Cité · Université Paris Sciences et Lettres · Observatoire de Paris · Sorbonne Université

   Affiliation as printed

   LIRA, Observatoire de Paris, Univ PSL, Sorbonne Univ, Univ Paris Cité, CY Cergy Paris Univ., CNRS (France)

9. Clarissa Do O

   California Institute of Technology

   Affiliation as printed

   California Institute of Technology (United States)

10. Jules Fowler

    University of California, Santa Cruz

    Affiliation as printed

    Univ. of California, Santa Cruz (United States)

11. R. Galicher

    Centre National de la Recherche Scientifique · Université Paris Cité · Université Paris Sciences et Lettres · Observatoire de Paris · Sorbonne Université

    Affiliation as printed

    LIRA, Observatoire de Paris, Univ PSL, Sorbonne Univ, Univ Paris Cité, CY Cergy Paris Univ., CNRS (France)

12. Tyler D. Groff

    Goddard Space Flight Center

    Affiliation as printed

    NASA Goddard Space Flight Ctr. (United States)

13. Rebecca Jensen-Clem

    University of California, Santa Cruz

    Affiliation as printed

    Univ. of California, Santa Cruz (United States)

14. Dimitri P. Mawet

    California Institute of Technology

    Affiliation as printed

    California Institute of Technology (United States)

15. Johan Mazoyer

    Centre National de la Recherche Scientifique · Université Paris Cité · Université Paris Sciences et Lettres · Observatoire de Paris · Sorbonne Université

    Affiliation as printed

    LIRA, Observatoire de Paris, Univ PSL, Sorbonne Univ, Univ Paris Cité, CY Cergy Paris Univ., CNRS (France)

16. Michael W. McElwain

    Goddard Space Flight Center

    Affiliation as printed

    NASA Goddard Space Flight Ctr. (United States)

17. Lane Meier

    Goddard Space Flight Center

    Affiliation as printed

    NASA Goddard Space Flight Ctr. (United States)

18. Axel Potier

    Centre National de la Recherche Scientifique · Université Paris Cité · Université Paris Sciences et Lettres · Observatoire de Paris · Sorbonne Université

    Affiliation as printed

    LIRA, Observatoire de Paris, Univ PSL, Sorbonne Univ, Univ Paris Cité, CY Cergy Paris Univ., CNRS (France)

19. Laurent A. Pueyo

    Space Telescope Science Institute

    Affiliation as printed

    Space Telescope Science Institute (United States)

20. Susan F. Redmond

    Jet Propulsion Laboratory

    Affiliation as printed

    Jet Propulsion Lab. (United States)

21. Scott D. Will

    Goddard Space Flight Center

    Affiliation as printed

    NASA Goddard Space Flight Ctr. (United States)

22. Neil T. Zimmerman

    Goddard Space Flight Center

    Affiliation as printed

    NASA Goddard Space Flight Ctr. (United States)