Use of a Fourier transform spectrometer on a balloon-borne telescope and at the multiple mirror telescope (MMT)The design and use of an infrared Fourier transform spectrometer which has been used for observations of laboratory, stratospheric, and astronomical spectra are described. 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.
Document ID
19830050784
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Traub, W. A. (Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Chance, K. V. (Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Brasunas, J. C. (Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Vrtilek, J. M. (Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Carleton, N. P. (Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1982
Subject Category
Instrumentation And Photography
Meeting Information
Meeting: Instrumentation in astronomy IV; Fourth Conference