Statistics – Computation
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agufmmr31a..02h&link_type=abstract
American Geophysical Union, Fall Meeting 2006, abstract #MR31A-02
Statistics
Computation
3919 Equations Of State, 3924 High-Pressure Behavior, 5422 Ices, 5460 Physical Properties Of Materials, 5724 Interiors (8147)
Scientific paper
Knowledge of the behavior of a variety of fluids under extreme conditions of high pressures and temperatures provides a crucial starting point for understanding the evolution, structure, and dynamics of deep planetary interiors. These properties include the equations of state, sound velocities, phase separation, and chemical reactions are essential. Despite advances in both static and dynamic compression methods, as well as improvements in the accuracy of computational theory, a number of problems remain even for relatively 'simple' components under conditions of deep planetary interiors. We review key fundamental data on key components including hydrogen, water and carbon-rich systems. We focus on the thermodynamic properties and the kinetics of hydrogen rich ices, specifically the ternary systems consisting of hydrogen, oxygen and water under pressure. Using diamond anvil cell experiments and first principles simulations, we studied the stability of molecular bonds in different liquid and solid environments. Furthermore, we report recent results for the properties of type II clathrate hydrates that are expected be present on ice giants. Using lattice dynamics calculations, we studied the phonon and libron vibrational spectra in the presence of hydrogen disorder and compared with recent neutron diffraction experiments.
Hemley Russell J.
Militzer Burkhard
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