Journal
ASTROPHYSICAL JOURNAL
Volume 683, Issue 2, Pages 1217-1228Publisher
IOP Publishing Ltd
DOI: 10.1086/589806
Keywords
equation of state; planets and satellites : individual (Jupiter)
Categories
Funding
- Deutsche Forschungsgemeinschaft [GRK 567]
- Sonderforschungsbereich [SFB 652]
- High Performance Computing Center North (HLRN) [mvp00006]
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The equation of state of hydrogen, helium, and water affects interior structure models of giant planets significantly. We present a new equation of state data table, LM-REOS, generated by large-scale quantum molecular dynamics simulations for hydrogen, helium, and water in the warm dense matter regime, i.e., for megabar pressures and temperatures of several thousand kelvins, and by advanced chemical methods in the complementary regions. The influence of LM-REOS on the structure of Jupiter is investigated and compared with state-of-the-art results within a standard three-layer model consistent with astrophysical observations of Jupiter. Our new Jupiter models predict an important impact of mixing effects of helium in hydrogen with respect to an altered compressibility and immiscibility.
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