MASS-RADIUS RELATIONSHIPS IN ICY SATELLITES

被引：77

作者：

LUPO, MJ

LEWIS, JS

机构：

[1] Department of Earth and Planetary Sciences, Massachusetts Institute of Technology, Cambridge

来源：

ICARUS | 1979年 / 40卷 / 02期

关键词：

D O I：

10.1016/0019-1035(79)90061-7

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using published laboratory data for H2O ice, we have developed a modeling technique by which the bulk density, density and temperature profile, rotational moment of inertia, central pressure, and location of the rock-ice interface can all be obtained as a function of the radius, the heliocentric distance, and the silicate composition. Models of the interiors of Callisto, Ganymede, Europa, Rhea, and Titan are given, consistent with present mass and radius data. The radius and mass of spheres of ice under self-gravitation for two different temperature classes are given (103 and 77°K). Measurements of mass, radius, and I/MR2 by spacecraft can be interpreted by this model to yield substantial information about the internal structure and the ice: rock ratio of the icy satellites of Jupiter and Saturn. © 1979.

引用

页码：157 / 170

页数：14

共 37 条

[1] Equilibrium in binary systems under pressure. I. An experimental and thermodynamic investigation of the system, NaC1-H2O, at 25(0) [J].