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Proceedings Paper

Space interferometer concept for the detection of extrasolar earth-like planets
Author(s): Pierre Y. Bely; Christopher J. Burrows; Francois J. Roddier
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Paper Abstract

A concept for a space-based interferometer dedicated to the detection of extrasolar earth-like planets is described. The interferometer is of the Fizeau configuration with an aperture composed of twelve 1.2 meter mirrors on a 20 meter ring. The subapertures are distributed to optimize the u-v plane coverage when the interferometer is rotated around its axis. Parent star cancellation is obtained by the combination of a coronagraph and a rotation shearing interferometer. The interferometer is supported by a chemically rigidized structure deployed by inflation. Due to the lack of side shield and the resulting limited pointing capability with respect to the sun, it is proposed to locate the instrument at the second Lagrangian point of the earth-sun system.

Paper Details

Date Published: 1 August 1990
PDF: 8 pages
Proc. SPIE 1237, Amplitude and Intensity Spatial Interferometry, (1 August 1990); doi: 10.1117/12.19294
Show Author Affiliations
Pierre Y. Bely, Space Telescope Science Institute (United States)
Christopher J. Burrows, Space Telescope Science Institute (United Kingdom)
Francois J. Roddier, Univ. of Hawaii/Manoa (United States)

Published in SPIE Proceedings Vol. 1237:
Amplitude and Intensity Spatial Interferometry
James B. Breckinridge, Editor(s)

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