Primordial electrical induction heating of asteroids
Primordial electrical induction heating of asteroids
复制标题
小行星的原始电感应加热
DOI：
10.1016/0019-1035(89)90187-5
复制
发表时间：
1989
期刊：
影响因子：
3.2
通讯作者：
F. Herbert
中科院分区：
文献类型：
--
作者：
F. Herbert
最近观察到的小行星的组成相对于大小和日心距离的系统趋势解释的假设，原始小行星的热演化是由电磁感应驱动的密集的前主序星太阳风。据发现，感应加热的空间分布对应以及从现今的小行星组成类型的分布推断合理的原太阳系的特征时，假设。从这一匹配推断出感应加热时期的持续时间（约105年）和原小行星材料的温度依赖电导率（与C2陨石Murcheson的电导率大致相同）的粗略限制。
Recently observed systematic trends of asteroidal composition with respect to size and heliocentric distance are interpreted according to the hypothesis that primordial asteroidal thermal evolution was driven by electromagnetic induction in a dense pre-main-sequence solar wind. It is found that the spatial distribution of induction heating corresponds well with that inferred from the present-day distribution of asteroidal compositional types when reasonable proto-Solar-System characteristics are assumed. From this match is deduced a rough constraint on the induction heating epoch's duration (≈105years) and the temperature-dependent electrical conductivity of the protoasteroidal material (about the same as that of the C2 meteorite Murcheson).