Other
Scientific paper
May 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agusm.m23a..03v&link_type=abstract
American Geophysical Union, Fall Meeting 2007, abstract #M23A-03
Other
3611 Thermodynamics (0766, 1011, 8411), 3919 Equations Of State, 5724 Interiors (8147), 6220 Jupiter, 0350 Pressure, Density, And Temperature
Scientific paper
We use density functional molecular dynamic simulations to investigate equilibrium properties of hydrogen-helium mixtures at megabar pressures. We consider a density and temperature range relevant for giant planets found in our and other solar systems. This will allow us to construct more accurate models for the interiors of Jupiter and Saturn and to address important questions about their interior structure and evolution. We focus on the atomic and molecular phase of hydrogen and hydrogen helium mixtures along the isentrope of Jupiter. There, we study the structure of the liquid and how the presence of helium influences the bond and shifts the dissociation of the hydrogen molecules to higher pressures. We compute and analyse corrections concerning the commonly used linear mixing approximation for hydrogen and helium. The results of our ab initio approach will be compared to EOSs derived from free energy minimisation methods and the chemical picture.
Bonev Stanimir A.
Militzer Burkhard
Tamblyn Isaac
Vorberger Jan
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