1.The end point of the collapse and relaxation of a protogalaxy is a dark matter halo, inside of which the baryonic gas is in hydrostatic equilibrium at a temperature of typically a few million degrees.
1.原星系塌缩与松弛的最终点就是黑晕,里
有处
静力平衡的重子气
,一般温度约数百万度。