Compositional Constraints on the Atmospheres of Uranus and Neptune from Herschel and Spitzer Spectroscopic Observations

Details Compositional Constraints on the Atmospheres of Uranus and Neptune from Herschel and Spitzer Spectroscopic Observations Compositional Constraints on the Atmospheres of Uranus and Neptune from Herschel and Spitzer Spectroscopic Observations

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufm.p14a..07o&link_type=abstract

American Geophysical Union, Fall Meeting 2010, abstract #P14A-07

Physics

[5704] Planetary Sciences: Fluid Planets / Atmospheres, [5709] Planetary Sciences: Fluid Planets / Composition, [6255] Planetary Sciences: Solar System Objects / Neptune, [6293] Planetary Sciences: Solar System Objects / Uranus

Scientific paper

Key elements of planetary compositions provide one of the most fundamental constraints on the origins and evolution of major bodies in the solar system. For the icy giants, Uranus and Neptune, acquiring compositional information has been a challenge because of their faintness. Great strides have been made with the advent of cryogenically cooled space-borne telescopes, however, and we report here the most recent of these results from Spitzer and Herschel telescopes, the latter including data taken within the framework of the Key Project "Water and Related Chemistry in the Solar system". Our interpretation of these results is set in the context of earlier results obtained by the ISO LWS and SWS spectrometers, together with relevant Earth-based observations. We will specifically discuss the chemical inventory and abundances stratospheric hydrocarbons, the implications of thermal structure for deep atmospheric composition, and improved constraints on the D/H ratio in Neptune.

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