15 August 1980 A Large-Aperture Space Telescope For Infrared And Submillimeter Astronomy
Author Affiliations +
Proceedings Volume 0228, Active Optical Devices and Applications; (1980) https://doi.org/10.1117/12.958775
Event: 1980 Technical Symposium East, 1980, Washington, D.C., United States
Abstract
Large apertures improve the capability of astronomical telescopes in two ways: increased spatial resolution (linearly dependent on aperture size) and increased sensitivity (dependent on aperture size squared). For the purpose of a technology assessment, the Large-Aperture Telescope (LAT) for infrared and submillimeter astronomy is envisioned to be 10 to 30 m in diameter, operating in the 2-μm ≤ λ ≤ 1000-μm wavelength range. It would be carried to orbit with a single launch of the Space Transportation System and semi-automatically deployed as a free flyer with a nominal 10-yr mission duration. Periodic revisits at 2-yr intervals would allow servicing and instrument change. LAT must be placed above the Earth's atmosphere to avoid the absorption that occurs through much of the infrared and submillimeter, and to avoid turbulence which limits spatial resolution. Important technical considerations for LAT include: (1) telescope optical form, (2) primary mirror material, (3) figure control techniques, (4) deployment techniques, (5) pointing and stabilization, and (6) thermal control. This paper discusses the science objectives and rationale for LAT and describes different hardware techniques and concepts for its implementation.
© (1980) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
James P. Murphy, James P. Murphy, Michael K. Kiya, Michael K. Kiya, Michael Werner, Michael Werner, Paul N. Swanson, Paul N. Swanson, Thomas B. H. Kuiper, Thomas B. H. Kuiper, Paul D. Batelaan, Paul D. Batelaan, } "A Large-Aperture Space Telescope For Infrared And Submillimeter Astronomy", Proc. SPIE 0228, Active Optical Devices and Applications, (15 August 1980); doi: 10.1117/12.958775; https://doi.org/10.1117/12.958775
PROCEEDINGS
11 PAGES


SHARE
Back to Top