论文标题
在各向异性的两流体恒星对象上
On anisotropic two-fluid stellar objects in General Relativity
论文作者
论文摘要
我们应用1+1+2的协变量半四分方法来描述一种通用的静态和球形对称性相对论恒星对象，该对象包含两个具有各向异性压力的流体。然后，对于各向异性情况，以协变形式获得相应的Tolman-Oppenheimer-Volkoff方程。这些方程用于使用直接分辨率和重建技术获得新的精确解决方案。最后，我们表明，三种因单流体情况已知的生成定理也可用于从单流体溶液中获得两流体溶液。
We apply the 1+1+2 covariant semi-tetrad approach to describe a general static and spherically symmetric relativistic stellar object which contains two fluids with anisotropic pressure. The corresponding Tolman-Oppenheimer-Volkoff equations are then obtained in covariant form for the anisotropic case. These equations are used to obtain new exact solutions using direct resolution and reconstruction techniques. Finally, we show that three of the generating theorems known for the single fluid case can also be used to obtain two-fluid solutions from single fluid ones.
