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Proceedings Paper

Results from a multi aperture Fizeau interferometer ground testbed: demonstrator for a future space-based interferometer
Author(s): Nicola Baccichet; Amandine Caillat; Eddy Rakotonimbahy; Kjetil Dohlen; Giorgio Savini; Michel Marcos
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Paper Abstract

In the framework of the European FP7-FISICA (Far Infrared Space Interferometer Critical Assessment) program, we developed a miniaturized version of the hyper-telescope to demonstrate multi-aperture interferometry on ground. This setup would be ultimately integrated into a CubeSat platform, therefore providing the first real demonstrator of a multi aperture Fizeau interferometer in space. In this paper, we describe the optical design of the ground testbed and the data processing pipeline implemented to reconstruct the object image from interferometric data. As a scientific application, we measured the Sun diameter by fitting a limb-darkening model to our data. Finally, we present the design of a CubeSat platform carrying this miniature Fizeau interferometer, which could be used to monitor the Sun diameter over a long in-orbit period.

Paper Details

Date Published: 4 August 2016
PDF: 10 pages
Proc. SPIE 9907, Optical and Infrared Interferometry and Imaging V, 99072K (4 August 2016); doi: 10.1117/12.2233686
Show Author Affiliations
Nicola Baccichet, Univ. College London (United Kingdom)
Amandine Caillat, Aix Marseille Univ., CNRS, LAM (France)
Eddy Rakotonimbahy, Aix Marseille Univ., CNRS, LAM (France)
Kjetil Dohlen, Aix Marseille Univ., CNRS, LAM (France)
Giorgio Savini, Univ. College London (United Kingdom)
Michel Marcos, Aix Marseille Univ., CNRS, LAM (France)

Published in SPIE Proceedings Vol. 9907:
Optical and Infrared Interferometry and Imaging V
Fabien Malbet; Michelle J. Creech-Eakman; Peter G. Tuthill, Editor(s)

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