Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993mnras.260..875n&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 260, no. 4, p. 875-882.
Astronomy and Astrophysics
Astronomy
6
Astronomical Spectroscopy, Broadband, Fourier Transformation, Molecular Clouds, Solar Spectra, Atmospheric Windows, Emission Spectra, Heterodyning, Signal To Noise Ratios
Scientific paper
We report the first use of a polarizing Fourier transform spectrometer on the James Clerk Maxwell Telescope. Solar spectra have been measured through four of the submillimeter and millimeter atmospheric windows. The repeatability is shown to be excellent, with signal-to-noise ratios exceeding 100 per spectral element per scan. The spectra also show good agreement with synthetic atmospheric transmission spectra over most of the spectral range. As a demonstration of the potential of this approach for astronomical spectroscopy, the (C-12)O J= 6-5 and 7-6 emission lines from the Orion molecular cloud have been detected for the first time using incoherent techniques.
Clark Thomas A.
Davis Gary R.
Duncan William D.
Naylor David A.
Tompkins Greg J.
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