HR: 0800h
AN: P21B-0552    [Abstracts]
TI: The relevance of recently revised thermophysical properties of important volatiles for planetary science and exploration of the outer solar system
AU: * Biele, J
EM: jens.biele@dlr.de
AF: DLR German Aerospace Center Institute for Planetary Resarch, DLR-PF Rutherfordstr. 2, Berlin, 12489, Germany
AB: Water (-ice) and certain other volatiles (e.g., carbon dioxide, carbon monoxide, methane) play an important role in the solar system (small bodies, icy moons). Thermophysical properties for wide ranges of temperature and pressure are needed for simulations and in order to describe the formation/thermal evolution of those bodies and the environment for space probes. Here we discuss and revise those properties from recent literature and derive precise and physically sound correlation equations. For water ice, we compile the most precise, up-to date measurements with the widest possible range in temperature and pressure, from which suitable approximations may be generated for the desired purpose and accuracy. A new thermodynamically consistent formulation for ice Ih is used; except for the thermal conductivity, these are now the most reliable and accurate data available. Differences for other modifications of ice are discussed.
DE: 0799 General or miscellaneous
DE: 5422 Ices
DE: 5460 Physical properties of materials
DE: 6299 General or miscellaneous
SC: Planetary Sciences [P]
MN: 2007 Fall Meeting