Re-examination of the thermal history of Mercury and the origin of its intrinsic magnetic field

采用太阳星云演化模型估算的水星的整体组成，对这颗最内层行星的热历史和发电机作用进行了数值和理论分析。地幔成分可能比以前的估计更粘，这减缓了固体内核的生长。从缓慢增长的内核释放的轻元素可能诱发了外液核的对流，产生了中等的发电机作用和目前的弱内禀磁场。这些结果为解释当前和未来的水星探测任务所获得的数据提供了基础。

The bulk composition of Mercury estimated from a model for the solar nebula evolution is adopted for the numerical and theoretical analysis of the thermal history and dynamo action of this innermost planet. The mantle components are probably more viscous than the previous estimates, which slows down the growth of solid inner core. The release of light element from the slowly growing inner core possibly induces the convection of outer liquid core with generating a moderate dynamo action and the present weak intrinsic magnetic field. These results provide a basis for the interpretation of data acquired by the current and future Mercury exploration missions.