Overview and performance prediction of the baseline 4-meter telescope concept design for the habitable-zone exoplanet observatory

H. Philip Stahl

doi:10.1117/12.2315291

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6 July 2018 Overview and performance prediction of the baseline 4-meter telescope concept design for the habitable-zone exoplanet observatory

H. Philip Stahl

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Proceedings Volume 10698, Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave; 106980W (2018) https://doi.org/10.1117/12.2315291
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

The Habitable Exoplanet Observatory Mission (HabEx) is one of four missions under study for the 2020 Astrophysics Decadal Survey. Its goal is to directly image and spectroscopically characterize planetary systems in the habitable zone around nearby sun-like stars. Additionally, HabEx will perform a broad range of general astrophysics science enabled by 100 to 2500 nm spectral range and 3 x 3 arc-minute FOV. Critical to achieving the HabEx science goals is a large, ultrastable UV/Optical/Near-IR (UVOIR) telescope. The baseline HabEx telescope is a 4-meter off-axis unobscured threemirror- anastigmatic, diffraction limited at 400 nm with wavefront stability on the order of a few 10s of picometers. This paper summarizes the opto-mechanical design of the HabEx baseline optical telescope assembly, including a discussion of how science requirements drive the telescope’s specifications, and presents analysis that the baseline telescope structure meets its specified tolerances.

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H. Philip Stahl "Overview and performance prediction of the baseline 4-meter telescope concept design for the habitable-zone exoplanet observatory", Proc. SPIE 10698, Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave, 106980W (6 July 2018); https://doi.org/10.1117/12.2315291

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