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Mean molecular weight and hydrogen abundance of Titan's atmosphere

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Abstract

The 200–600 cm−1 continuum opacity in the troposphere and lower stratosphere of Titan is inferred from thermal emission spectra from the Voyager 1 IR spectrometer (IRIS). The surface temperature and mean molecular weight are 94 K < TG < 97K and 28.3<M<29.2 AMU, respectively. The mole fraction of molecular hydrogen is 0.002±0.001, which is equivalent to an abundance of ∼0.2±0.1 km amagat.

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Authors and Affiliations

  1. Goddard Space Flight Center, Code 693.2, Greenbelt, Maryland, 20771, USA

    R. E. Samuelson, R. A. Hanel, V. G. Kunde & W. C. Maguire

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  1. R. E. Samuelson
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  2. R. A. Hanel
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  3. V. G. Kunde
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  4. W. C. Maguire
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Samuelson, R., Hanel, R., Kunde, V. et al. Mean molecular weight and hydrogen abundance of Titan's atmosphere. Nature 292, 688–693 (1981). https://doi.org/10.1038/292688a0

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