论文标题
扩展的动力学模型,自由耗散性完美流体
Dynamical model of expansion free dissipative perfect fluids in general relativity
论文作者
论文摘要
本文涉及球形对称的自我磨牙恒星,该恒星被认为是膨胀的无耗散液体分布。最近的一些研究表明,扩展自由动力恒星必须加速和消散。我们采用了一些猜想来获得此类恒星动力学模型的分析解决方案。首先,它表明,在准静态扩散近似下,动力恒星的密度是均匀的,\ lamada为主导。其次,还讨论了自相似解决方案以描述动力学模型。
This paper deals with the spherically symmetric self-gravitating star which is considered to be expansion free dissipative perfect fluids distribution. Some recent research reveals that expansion free dynamical star must be accelerating and dissipating. We adopted some conjectures to obtain the analytical solution for the dynamical model of such stars. Firstly, it has shown that density of dynamical star is homogeneous and \Lamada-dominated under quasi-static diffusion approximation. Secondly, the self-similar solution is also discussed to describe the dynamical model.