Habitable-zone observatory (HabEx) baseline 4-m telescope design and predicted performance

H. Philip Stahl; Gary Kuan; William Arnold; Mike Baysinger; Thomas Brooks; Jay Garcia; J. Brent Knight

doi:10.1117/12.2562879

13 December 2020 Habitable-zone observatory (HabEx) baseline 4-m telescope design and predicted performance

H. Philip Stahl, Gary Kuan, William Arnold, Mike Baysinger, Thomas Brooks, Jay Garcia, J. Brent Knight

Proceedings Volume 11443, Space Telescopes and Instrumentation 2020: Optical, Infrared, and Millimeter Wave; 114433C (2020) https://doi.org/10.1117/12.2562879
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Conference Poster

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 planets in the habitable zone around nearby sun-like stars. Additionally, HabEx will perform a broad range of general astrophysics science enabled by 115 to 1700 nm spectral range and 3x3 arc-minute FOV instruments. Critical to achieving its science goals is a large, ultra-stable UV/Optical/Near-IR (UVOIR) telescope. The baseline HabEx telescope is a 4-meter off-axis unobscured three-mirroranastigmatic, 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.

Citation Download Citation

H. Philip Stahl, Gary Kuan, William Arnold, Mike Baysinger, Thomas Brooks, Jay Garcia, and J. Brent Knight "Habitable-zone observatory (HabEx) baseline 4-m telescope design and predicted performance", Proc. SPIE 11443, Space Telescopes and Instrumentation 2020: Optical, Infrared, and Millimeter Wave, 114433C (13 December 2020); https://doi.org/10.1117/12.2562879

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