Germane in the atmosphere of Jupiter |
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| Authors: | Uwe Fink Harold P Larson Richard R Treffers |
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| Institution: | Lunar and Planetary Laboratory, University of Arizona, Tucson, Arizona 85721, USA |
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| Abstract: | High-altitude spectra of Jupiter obtained from the Kuiper Airborne Observatory are analyzed for the presence of germane (GeH4) in Jupiter's atmosphere. Comparison with laboratory spectra shows that the strong Q branch of the ν3 band of germane at 2111 cm?1 is prominent in the Jovian spectra. The abundance of germane in Jupiter's atmosphere is 0.006 (±0.003) cm-am corresponding to a mixing ratio of 0.6 ppb. This trace amount of germane is consistent with chemical equilibrium calculations if the germane present at ～1000°K is carried up by convection to the spectroscopically observable region at ～300°K. |
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