Space interferometer concept for the detection of extrasolar earth-like planets

Pierre Y. Bely; Christopher J. Burrows; Francois J. Roddier

doi:10.1117/12.19294

1 August 1990 Space interferometer concept for the detection of extrasolar earth-like planets

Pierre Y. Bely, Christopher J. Burrows, Francois J. Roddier

Proceedings Volume 1237, Amplitude and Intensity Spatial Interferometry; (1990) https://doi.org/10.1117/12.19294
Event: SPIE Astronomical Telescopes and Instrumentation for the 21st Century, 1990, Tucson, AZ, United States

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.

Citation Download Citation

Pierre Y. Bely, Christopher J. Burrows, and Francois J. Roddier "Space interferometer concept for the detection of extrasolar earth-like planets", Proc. SPIE 1237, Amplitude and Intensity Spatial Interferometry, (1 August 1990); https://doi.org/10.1117/12.19294

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