Updated simulation tools for Roman coronagraph PSFs

Kian Milani; Ewan S. Douglas; Jaren Ashcraft

doi:10.1117/12.2594807

20 August 2021 Updated simulation tools for Roman coronagraph PSFs

Kian Milani, Ewan S. Douglas, Jaren Ashcraft

Proceedings Volume 11819, UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts X; 118190E (2021) https://doi.org/10.1117/12.2594807
Event: SPIE Optical Engineering + Applications, 2021, San Diego, California, United States

Abstract

The Nancy Grace Roman Space Telescope Coronagraph Instrument will be the first large scale coronagraph mission with active wavefront control to be operated in space and will demonstrate technologies essential to future missions to image Earth-like planets. Consisting of multiple coronagraph modes, the coronagraph is expected to characterize and image exoplanets at 1E-8 or better contrast levels. An object-oriented physical optics modeling tool called POPPY provides flexible and efficient simulations of high-contrast point spread functions (PSFs). As such, three coronagraph modes have been modeled in POPPY. In this paper, we present the recent testing results of the models and provide quantitative comparisons between results from POPPY and existing tools such as PROPER/FALCO. These comparisons include the computation times required for PSF calculations. In addition, we discuss the future implementation of the POPPY models for the POPPY front-end package WebbPSF, a widely used simulation tool for JWST PSFs.

Conference Presentation

Citation Download Citation

Kian Milani, Ewan S. Douglas, and Jaren Ashcraft "Updated simulation tools for Roman coronagraph PSFs", Proc. SPIE 11819, UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts X, 118190E (20 August 2021); https://doi.org/10.1117/12.2594807

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