Use Of A Fourier Transform Spectrometer On A Balloon-Borne Telescope And At The Multiple Mirror Telescope (MMT)

W. A. Traub; K. V. Chance; J. C. Brasunas; J. M. Vrtilek; N. P. Carleton

doi:10.1117/12.933457

16 November 1982 Use Of A Fourier Transform Spectrometer On A Balloon-Borne Telescope And At The Multiple Mirror Telescope (MMT)

W. A. Traub, K. V. Chance, J. C. Brasunas, J. M. Vrtilek, N. P. Carleton

Author Affiliations +

Proceedings Volume 0331, Instrumentation in Astronomy IV; (1982) https://doi.org/10.1117/12.933457
Event: 1982 Astronomy Conferences, 1982, Tucson, United States

Abstract

We describe the design and use of an infrared Fourier transform spectrometer which has been used for observations of laboratory, stratospheric, and astronomical spectra. The spectrometer has a spectral resolution of 0.032 cm and has operated in the mid-infrared (12 to 13 microns) as well as the far-infrared (40 to 140 microns), using both bolometer and photoconductor cryogenic detectors. The spectrometer is optically sized to accept an f/9 beam from the multi-mirror telescope (MMT). The optical and electronic design are discussed, including remote operation of the spectrometer on a balloon-borne 102 cm telescope. The performance of the laser-controlled, screw-driven moving cat's-eye mirror is discussed. Segments of typical far-infrared balloon flight spectra, lab spectra, and mid-infrared MMT spectra are presented. Data reduction, interferogram processing, artifact removal, wavelength calibration, and intensity calibration methods are discussed. Future use of the spectrometer is outlined.

Citation Download Citation

W. A. Traub, K. V. Chance, J. C. Brasunas, J. M. Vrtilek, and N. P. Carleton "Use Of A Fourier Transform Spectrometer On A Balloon-Borne Telescope And At The Multiple Mirror Telescope (MMT)", Proc. SPIE 0331, Instrumentation in Astronomy IV, (16 November 1982); https://doi.org/10.1117/12.933457

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