HabEx Baseline Optical Telescope Assembly

[摘要] The Habitable Exoplanet Observatory Mission (HabEx) will 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, ultra-stable telescope. The baseline HabEx telescope is a 4-m off-axis unobscured three-mirror-anastigmatic design with diffraction limited performance at 400 nm and wavefront stability of picometers per mK. These specifications are driven by science requirements. STOP (structural thermal optical performance) analysis predicts that the baseline telescope’s opto-mechanical design meets its specified performance tolerances.

[发布日期] 2019-04-01

[学科分类] 空间科学

[关键词] ACTIVE CONTROL;APERTURES;CORONAGRAPHS;COST ANALYSIS;EXTRASOLAR PLANETS;HABITABILITY;MICROROCKET ENGINES;MIRRORS;OPTICAL EQUIPMENT;PAYLOADS;RELIABILITY ANALYSIS;SPACECRAFT PROPULSION;STRUCTURAL ANALYSIS;TELESCOPES;TEMPERATURE EFFECTS;WAVE FRONTS