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Ground-based measurements of the 1.3 to 0.3 mm spectrum of Jupiter and Saturn, and their detailed calibration

AuthorsPardo Carrión, Juan Ramón ; Serabyn, Eugene; Wiedner, Martina C.; Moreno, Raphael.; Orton, Glenn
KeywordsRadio continuum and lines: planetary atmospheres
Planets: Jupiter and Saturn
Calibration: millimeter and submillimeter wavelengths
Issue Date1-Jul-2017
CitationIcarus 290: 150-155 (2017)
AbstractOne of the legacies of the now retired Caltech Submillimeter Observatory (CSO) is presented in this paper. We measured for the first time the emission of the giant planets Jupiter and Saturn across the 0.3 to 1.3  mm wavelength range using a Fourier Transform Spectrometer mounted on the 10.4 m dish of the CSO at Mauna Kea, Hawaii, 4100 m above sea level. A careful calibration, including the evaluation of the antenna performance over such a wide wavelength range and the removal of the Earth's atmosphere effects, has allowed the detection of broad absorption lines on those planets’ atmospheres. The calibrated data allowed us to verify the predictions of standard models for both planets in this spectral region, and to confirm the absolute radiometry in the case of Jupiter. Besides their physical interest, the results are also important as both planets are calibration references in the current era of operating ground-based and space-borne submillimeter instruments.
Publisher version (URL)https://doi.org/10.1016/j.icarus.2017.02.019
Identifiersdoi: 10.1016/j.icarus.2017.02.019
issn: 0019-1035
Appears in Collections:(ICMM) Artículos
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