INTERIOR OF SOLAR AND EXTRASOLAR GIANT PLANETS

被引：0

作者：

Redmer, Ronald ^{[1
]}

Nettelmann, Nadine ^{[1
]}

Kramm, Ulrike ^{[1
]}

Holst, Bastian ^{[1
]}

Lorenzen, Winfried ^{[1
]}

French, Martin ^{[1
]}

机构：

[1] Univ Rostock, Inst Phys, D-18051 Rostock, Germany

来源：

SHOCK COMPRESSION OF CONDENSED MATTER - 2009, PTS 1 AND 2 | 2009年 / 1195卷

关键词：

giant planets; ab-initio simulations; dense hydrogen-helium mixtures; metal-nonmetal transition; EQUATION-OF-STATE; HYDROGEN-HELIUM MIXTURES; AUGMENTED-WAVE METHOD; PHASE-SEPARATION; FLUID HELIUM; MOLECULAR-DYNAMICS; INTERNAL STRUCTURE; LIQUID DEUTERIUM; DENSE HYDROGEN; HD; 149026B;

D O I：

暂无

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We present new results for the interior of solar as well as extrasolar giant planets based on ab initio molecular dynamics simulations for the most abundant planetary materials hydrogen, helium, and water. The equation of state, the electrical conductivity and reflectivity can be calculated up to high pressures; very good agreement with shock-wave experimental results is found. The nonmetal-to-metal transition in hydrogen and the subsequent demixing of hydrogen from helium is of great importance for the interior of Jovian planets. The superionic phase predicted for water at high pressures is relevant for Neptune-like giant planets. Advanced planetary models can be constructed based on the new ab initio data.

引用

页码：905 / 910

页数：6

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