Broad-band spectroscopy with the James Clerk Maxwell Telescope using a polarizing Fourier transform spectrometer
| Autor: | G. R. Davis, David A. Naylor, G. J. Tompkins, W. D. Duncan, T. A. Clark |
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| Rok vydání: | 1993 |
| Předmět: |
Physics
Spectrometer business.industry Astrophysics::Instrumentation and Methods for Astrophysics Astronomy and Astrophysics Astronomical spectroscopy Spectral line symbols.namesake Optics Fourier transform Space and Planetary Science Orion Nebula symbols Emission spectrum Spectroscopy business Astrophysics::Galaxy Astrophysics James Clerk Maxwell Telescope |
| Zdroj: | Monthly Notices of the Royal Astronomical Society. 260:875-882 |
| ISSN: | 1365-2966 0035-8711 |
| DOI: | 10.1093/mnras/260.4.875 |
| Popis: | 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 submillimetre and millimetre 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 12 CO J = 6-5 and 7-6 emission lines from the Orion molecular cloud have been detected for the first time using incoherent techniques |
| Databáze: | OpenAIRE |
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