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Proceedings Paper

Adaptive steerable imaging array
Author(s): E. Keith Hege; James Roger P. Angel; Anthony D. Gleckler; Kent P. Pflibsen; Bobby Lee Ulich
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Paper Abstract

We propose an optimized design for the redeployment of the Multiple Mirror Telescope (MMT) primary optics as an Adaptive Steerable Imaging Array (ASIA) providing direct focal plane image formation. The design incorporates concepts of active telescope alignment and adaptive optics proven in the existing MMT. Existing 25 m radio telescope mount technology could easily be adapted to provide support of the optics with tracking stability, against wind loading, sufficient to allow optical rigidity to be obtained using off-axis stellar references, a possibility only feasible with comounted MMT-like interferometer designs which mitigate the field-of-view limitations of long optical delay-lines. As a result of the Steward Observatory borosilicate honeycomb mirror development program a seventh mirror may also be available, giving the light gathering capability of a 4.8 m aperture but with the resolution of a 25 m aperture, for a facility dedicated to the advancement of interferometric imaging technology and high angular resolution astronomy. By utilizing existing technology and providing weather proofing of the optics on its mount, an expensive telescope enclosure, as well as costly, complex laser metrology and optical delay lines, is avoided in a cost effective installation.

Paper Details

Date Published: 9 November 1993
PDF: 15 pages
Proc. SPIE 2029, Digital Image Recovery and Synthesis II, (9 November 1993); doi: 10.1117/12.162013
Show Author Affiliations
E. Keith Hege, Steward Observatory/Univ. of Arizona (United States)
James Roger P. Angel, Steward Observatory/Univ. of Arizona (United States)
Anthony D. Gleckler, Kaman Aerospace Corp. (United States)
Kent P. Pflibsen, Kaman Aerospace Corp. (United States)
Bobby Lee Ulich, Kaman Aerospace Corp. (United States)

Published in SPIE Proceedings Vol. 2029:
Digital Image Recovery and Synthesis II
Paul S. Idell, Editor(s)

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