Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977apj...215l..43g&link_type=abstract
Astrophysical Journal, Part 2 - Letters to the Editor, vol. 215, July 1, 1977, p. L43-L45.
Astronomy and Astrophysics
Astrophysics
1
Gas Giant Planets, Methane, Molecular Spectra, Planetary Atmospheres, Spectral Bands, Atmospheric Composition, High Resolution, Neptune (Planet), Planetary Radiation, Uranus (Planet)
Scientific paper
A high-resolution spectrum of the series of lines near 6825 A presumably due to CH4 has been obtained for Uranus. The line spacings are in agreement with the previous observations of Owen (1966), Bergstralh (1975), and Belton and Hayes (1975) but not with the laboratory observations reported by Lutz and Owen (1976). It is proposed that the transitions identified by Lutz and Owen are not correlated one-to-one with those features observed in the planets. Wavelength differences of up to 0.8 A are found between the laboratory and planetary features, where the resolving power allows one to specify the line positions to better than + or - 0.07 A. The spectrum obtained for Neptune is in essential agreement with that for Uranus.
Gelfand Joseph
Perlsweig D. M.
Smith William Hayden
White Raymond Edwin III
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