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Proceedings Paper

LDR: An Orbiting Submillimeter-Infrared Telescope For The 1990s
Author(s): Paul N. Swanson; M. Kiya
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Paper Abstract

The history and background of LDR is reviewed. The results of the June 1982 Asilomar Workshop are incorporated into the LDR science objectives and telescope concept. The areas where the LDR may have the greatest scientific impact are in the study of star formation and planetary systems in our own and nearby galaxies and in cosmological studies of the structure and evolution of the early universe. The observational requirements for these and other scientific studies give rise to a set of telescope functional requirements. These, in turn, are satisfied by an LDR configuration which is a Cassegrain design with a 20 m diameter, actively controlled, segmented, primary reflector, diffraction limited at a wave-length of 30-50 pm. Technical challenges in the LDR development include construction of high tolerance mirror segments, surface figure measurement, figure control, vibration control, pointing, cryogenics and coherent detectors. Project status and future plans for the LDR are discussed.

Paper Details

Date Published: 23 August 1983
PDF: 13 pages
Proc. SPIE 0365, Adaptive Optics Systems and Technology, (23 August 1983); doi: 10.1117/12.934196
Show Author Affiliations
Paul N. Swanson, Jet Propulsion Laboratory (United States)
M. Kiya, NASA Ames Research Center (United States)


Published in SPIE Proceedings Vol. 0365:
Adaptive Optics Systems and Technology
Richard J. Becherer; Bruce A. Horwitz, Editor(s)

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