Demonstrating complex visibility measurements and image reconstruction using a double-Fourier interferometer testbed

Jeremy P. Scott; Locke D. Spencer; Chris S. Benson

doi:10.1117/12.3020640

28 August 2024 Demonstrating complex visibility measurements and image reconstruction using a double-Fourier interferometer testbed

Jeremy P. Scott, Locke D. Spencer, Chris S. Benson

Author Affiliations +

Proceedings Volume 13095, Optical and Infrared Interferometry and Imaging IX; 1309537 (2024) https://doi.org/10.1117/12.3020640
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

The Far-Infrared (FIR; 25−350μm) band remains relatively unexplored in astronomy despite its importance for studying the formation and evolution of planets, stars, and galaxies. One factor which limits FIR observing capabilities is the impractically large single aperture telescopes that would be required to achieve the sub-arcsecond angular resolution that has been obtained in the optical and radio bands. A Double-Fourier Interferometer (DFI) has been proposed, which combines both a spatial interferometer and a Fourier Transform Spectrometer (FTS). Such an instrument, however, is lacking in experimental validation. This work contributes to DFI development by demonstrating the technique for a simple, spectrally uniform source.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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Jeremy P. Scott, Locke D. Spencer, and Chris S. Benson "Demonstrating complex visibility measurements and image reconstruction using a double-Fourier interferometer testbed", Proc. SPIE 13095, Optical and Infrared Interferometry and Imaging IX, 1309537 (28 August 2024); https://doi.org/10.1117/12.3020640

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