6 July 2006 The Fourier-Kelvin Stellar Interferometer: a low-complexity low-cost space mission for high-resolution astronomy and direct exoplanet detection
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Abstract
The Fourier-Kelvin Stellar Interferometer (FKSI) is a mission concept for a spacecraft-borne nulling interferometer for high-resolution astronomy and the direct detection of exoplanets and assay of their environments and atmospheres. FKSI is a high angular resolution system operating in the near to mid-infrared spectral region and is a scientific and technological pathfinder to the Darwin and Terrestrial Planet Finder (TPF) missions. The instrument is configured with an optical system consisting, depending on configuration, of two 0.5 - 1.0 m telescopes on a 12.5 - 20 m boom feeding a symmetric, dual Mach- Zehnder beam combiner. We report on progress on our nulling testbed including the design of an optical pathlength null-tracking control system and development of a testing regime for hollow-core fiber waveguides proposed for use in wavefront cleanup. We also report results of integrated simulation studies of the planet detection performance of FKSI and results from an in-depth control system and residual optical pathlength jitter analysis.
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R. K. Barry, R. K. Barry, W. C. Danchi, W. C. Danchi, L. D. Deming, L. D. Deming, L. J. Richardson, L. J. Richardson, M. J. Kuchner, M. J. Kuchner, S. Seager, S. Seager, B. J. Frey, B. J. Frey, A. J. Martino, A. J. Martino, K. A. Lee, K. A. Lee, M. Zuray, M. Zuray, J. Rajagopal, J. Rajagopal, T. T. Hyde, T. T. Hyde, R. Millan-Gabete, R. Millan-Gabete, J. D. Monnier, J. D. Monnier, R. J. Allen, R. J. Allen, W. A. Traub, W. A. Traub, } "The Fourier-Kelvin Stellar Interferometer: a low-complexity low-cost space mission for high-resolution astronomy and direct exoplanet detection", Proc. SPIE 6265, Space Telescopes and Instrumentation I: Optical, Infrared, and Millimeter, 62651L (6 July 2006); doi: 10.1117/12.672437; https://doi.org/10.1117/12.672437
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