Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...336..962s&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 336, Jan. 15, 1989, p. 962-966.
Astronomy and Astrophysics
Astrophysics
12
Deuterium, Hydrogen, Neptune (Planet), Uranus (Planet), Abundance, Line Spectra, Planetary Atmospheres, Planets, Uranus, Neptune, Deuterium, Hydrogen, Isotopic Ratios, Atmosphere, Absorption, Abundance, Scattering, Models, Equipment, Earth-Based Observations, Spectra
Scientific paper
Searches for absorption features of HD near 6050 A are reported for Uranus and Neptune. The existence of blends of the HD features with weak features due to minor species in the atmosphere of Uranus is demonstrated. These blends make the unambiguous identification of the weak HD features exceedingly difficult. The data are analyzed with inhomogeneous scattering models to ascertain a D/H upper limit for Uranus and Neptune of 0.0001, a factor of 2 smaller than the upper limit reported from CH3D measurements.
Baines Kevin Hays
Schempp William V.
Simon Jonathan
Smith Wm. H.
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