Architecture trades to optimize wavefront stability requirements for exoplanet imaging in space.

Laurent A. Pueyo; Leonid Pogorelyuk; Iva Laginja; Remi Soummer; Ananya Sahoo; Emiel Por; Kerri Cahoy; Laura Coyle; Scott Knight

doi:10.1117/12.2630757

29 August 2022 Architecture trades to optimize wavefront stability requirements for exoplanet imaging in space.

Laurent A. Pueyo, Leonid Pogorelyuk, Iva Laginja, Remi Soummer, Ananya Sahoo, Emiel Por, Kerri Cahoy, Laura Coyle, Scott Knight

Author Affiliations +

Proceedings Volume 12180, Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave; 121802J (2022) https://doi.org/10.1117/12.2630757
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Abstract

We present a novel approach to quantify wavefront stability of large observatories in space, based on the science goals of coronagraph instrument aimed at imaging and characterizing earth-analog candidates. We developed this method in the context of the Astro 2020 recommendation for technology trades studies towards the maturation of a flagship IR\O\UV. We apply this method to quantify the observatory requirements of a series of possible future IR\O\UV mission architectures -primary geometry, coronagraph and wavefront sensor. We discuss similarities and differences between monolithic and segmented architectures. For segmented ones, we highlight the importance of tuning the modal content of primary segments instabilities so they lie as much as possible in the null-space space of the coronagraph.

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Laurent A. Pueyo, Leonid Pogorelyuk, Iva Laginja, Remi Soummer, Ananya Sahoo, Emiel Por, Kerri Cahoy, Laura Coyle, and Scott Knight "Architecture trades to optimize wavefront stability requirements for exoplanet imaging in space.", Proc. SPIE 12180, Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave, 121802J (29 August 2022); https://doi.org/10.1117/12.2630757

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KEYWORDS

Wavefronts

Coronagraphy

Exoplanets

Observatories

Wavefront sensors

Wave propagation

Aerospace engineering

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