速度弥散度的定义(velocity dispersion):弥散度是指随机变量方差的平方根,即均方差或标准差。在天文学中﹐速度弥散度通常是指恒星系统中剩余速度的弥散度。
同时,从三维盘状星系密度波的稳定性讨论推出了径向速度弥散度的变化规律。
We also obtain the variation of the radial dispersion of velocities with r through the stability of the density wave in three-dimensional dishlike galaxies.
本文对具有初始几何形状及维里系数相同,但初始速度弥散度分布不同的三轴椭球进行了数值模拟。
In this paper, the configuration of triaxial ellipticals with different initial dispersion velocities is studied by numerical simulation.
应用推荐