D/H for Uranus and Neptune

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...

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Veröffentlicht in:	Astrophys. J.; (United States) 1989-01, Vol.336 (2), p.962-966
Hauptverfasser:	Smith, Wm. Hayden, Schempp, W. V., Simon, J., Baines, Kevin H.
Format:	Artikel
Sprache:	eng
Schlagworte:	640107 - Astrophysics & Cosmology- Planetary Phenomena ABUNDANCE Astronomy ATMOSPHERES CHEMICAL COMPOSITION CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS DEUTERIUM Earth, ocean, space ELEMENTS Exact sciences and technology HYDROGEN HYDROGEN ISOTOPES ISOTOPES LIGHT NUCLEI LIMITING VALUES Lunar And Planetary Exploration NEPTUNE PLANET NONMETALS NUCLEI ODD-ODD NUCLEI PLANETARY ATMOSPHERES PLANETS Planets, their satellites and rings. Asteroids Solar system STABLE ISOTOPES URANUS PLANET
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Beschreibung
Zusammenfassung:	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.
ISSN:	0004-637X 1538-4357
DOI:	10.1086/167066