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Laboratory simulations of ammonia-rich oceans in icy worlds

Show simple item record Vance, Steven D. Brown, J Michael 2013-07-22T13:55:51Z 2013-07-22T13:55:51Z 2011-03-07
dc.identifier.citation 42 Lunar and Planetary Institute Conference, Woodlands, Texas, March 7–11, 2011 en_US
dc.identifier.clearanceno 10-5537
dc.description.abstract Improved equations of state for ammonia-water solutions are important for properly understanding the interiors of large icy satellites host-ing deep interior oceans. Titan is the primary example of such a world, but water-rich dwarf planets Meas-urements of solution density are now possible at rele-vant pressures (above ~250 MPa) using the Simulator for Icy World Interiors [1]. Analysis of sound velocity measurements in aqueous magnesium sulfate obtained in our laboratory, shows a correction on the order of 5% to 700 MPa (7 kbars) from -20 to 100 oC and to 3 m (~30 Wt %) concentration [2,3]. Accurate predic-tion of density as a function of pressure, temperature, and ammonia concentration are needed for interpreta-tion of remote observations to address questions of interior liquid layer depth, composition, and fluid dynamics en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2011. en_US
dc.subject ammonia en_US
dc.subject equations of state en_US
dc.subject icy worlds en_US
dc.title Laboratory simulations of ammonia-rich oceans in icy worlds en_US
dc.type Preprint en_US

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