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Duane Johnson Morales, Miguel Angel 2015-09-25T20:03:18Z 2015-09-25T20:03:18Z 10000-01-01 2009 2009 We also study the equation of state of hydrogen, helium and hydrogen-helium mixtures at pressures beyond 200 GPa. We find very good agreement between both simulation methodologies for pressures beyond 600 GPa. From the equation of state calculations, an analysis of the miscibility properties of the mixture is performed. We find that the temperatures for the dcmixing of helium and metallic hydrogen are sufficiently high to cross the planetary adiabat of Saturn at pressures around 5 Mbar. Helium is partially miscible throughout a significant portion of the interior of Saturn, and to a lesser extent in Jupiter. These results are directly relevant to models of the interior structure and evolution of Jovian planets. Made available in DSpace on 2015-09-25T20:03:18Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3392227.pdf: 5566436 bytes, checksum: 82ac7729fdb8c7ff2e0641f1bd709bc3 (MD5) Previous issue date: 2009 Embargo set by: Seth Robbins for item 81898 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs U of I Only 128 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2009. http://hdl.handle.net/2142/80616 (MiAaPQ)AAI3392227 eng Physics, Astronomy and Astrophysics First Principles Simulations of Hydrogen and Helium at High Pressures text Physics Physics University of Illinois at Urbana-Champaign Dissertation Ph.D.