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Composition and origin of the atmosphere of Jupiter - an update, and implications for the extrasolar giant planets

Wong, M. H.; Atreya, S. K.; Owen, T. C. +2 more

New developments have led to this update of the composition and origin of Jupiter's atmosphere that were originally discussed in our Planet. Space Sci. 47 (1999) 1243 paper. Since Jupiter can provide important insight into the atmospheres of extrasolar giant planets (EGP), we also discuss here the possible implications of the first detection of an…

Chemical sources of haze formation in Titan's atmosphere

Atreya, S. K.; Wilson, E. H.

A prominent feature of Titan's atmosphere is a thick haze region that acts as the end product of hydrocarbon and nitrile chemistry. Using a one-dimensional photochemical model, an investigation into the chemical mechanisms responsible for the formation of this haze region is conducted. The model derives profiles for Titan's atmospheric constituent…

ISO observations of the giant planets and Titan: what have we learnt?

Encrenaz, Thérèse

Infrared spectroscopic observations of the giant planets and Titan with the Infrared Space Observatory (ISO) have brought a significant contribution to our knowledge of these objects. The main discoveries achieved by ISO are: (1) the first detection of an external oxygen source for all giant planets and Titan; (2) the first detection of new strato…