HYDROGEN-HELIUM MIXTURES AT MEGABAR PRESSURES - IMPLICATIONS FOR JUPITER AND SATURN

被引：52

作者：

KLEPEIS, JE

SCHAFER, KJ

BARBEE, TW

ROSS, M

机构：

[1] University of California, Lawrence Livermore National Laboratory, Livermore

来源：

SCIENCE | 1991年 / 254卷 / 5034期

关键词：

D O I：

10.1126/science.254.5034.986

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Models of Jupiter and Saturn postulate a central rock core surrounded by a fluid mixture of hydrogen and helium. These models suggest that the mixture is undergoing phase separation in Saturn but not Jupiter. State-of-the-art total energy calculations of the enthalpy of mixing for ordered alloys of hydrogen and helium confirm that at least partial phase separation has occurred in Saturn and predict that this process has also begun in Jupiter.

引用

页码：986 / 989

页数：4

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