Liquids and solids on the surface of Titan: Results of a new photochemical model

Lara, L.M. and Lorenz, Ralph D. and Rodrigo, R. (1994) Liquids and solids on the surface of Titan: Results of a new photochemical model. Planetary and Space Science, 42 (1). pp. 5-14. ISSN 0032-0633. (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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Recent radar, microwave and infrared observations of Titan suggest that a significant fraction of the surface may be covered by ice, in conflict with previous photochemical models which suggested a global ocean, 700 m deep, of ethane. We present here results of a new photochemical model, including updated reaction coefficients, and improved treatments of transport and condensation processes, which predict a lower ethane production (<285 m equivalent). We additionally consider the likely existence of a deep porous icy regolith on Titan's surface, which could ''hide'' the liquid hydrocarbons from observation, while permitting communication with the atmosphere to maintain the observed methane abundance against photolysis. This ''shallow, buried ocean'' model is compatible with current observational constraints on Titan's surface.

Item Type: Article
Additional information: Correspondence to: L.M. Lara. * Present address: DESPA, Observatoire de Paris-Meudon, 92195 Meudon, France.
Subjects: Q Science > QB Astronomy
Q Science > QC Physics
Divisions: Faculties > Science Technology and Medical Studies > School of Physical Sciences
Depositing User: O.O. Odanye
Date Deposited: 12 Jul 2009 19:50
Last Modified: 14 Jul 2014 08:49
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