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The D/H ratio for Jupiter (1989)

Smith, Wm. Hayden ; Schempp, W. V. ; Baines, Kevin H.

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Publication Date: 2019-07-12

Description: Observations of Jupiter's spectrum near the R5(0) HD line at 6063.88 A are reported. A feature with an equivalent width of 0.065 + or - 0.021 mA is coincident with the expected line. This feature is compared with HD profiles computed for inhomogeneous scattering models for Jupiter to yield a range for the Jovian D/H ratio of 1.0-2.9 x 10 to the -5th. This D/H ratio is in the lower range of previously reported D/H values for Jupiter and corresponds to an essentially solar D/H ratio for Jupiter. The detection of HD features in the presence of probable blends with spectral features of minor atmospheric hydrocarbon molecules is discussed. Such blends may make unambiguous identification of HD features difficult.

Keywords: LUNAR AND PLANETARY EXPLORATION

Type: Astrophysical Journal, Part 1 (ISSN 0004-637X); 336; 967-970

Format: text

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