论文标题
关于星系簇的兰伯达进化
On the Lambda-evolution of galaxy clusters
论文作者
论文摘要
星系簇的演变可能会受到宇宙常数描述的排斥。在修改后的弱场一般相对性方法中得出了这一结论，其中宇宙常数λ可源描述了暗物质和暗能量的共同性质。动态系统理论和RICCI曲率标准的几何方法用于揭示确定其进化路径的星系簇的不稳定性特性的差异。也就是说，表明由λ抑制的重力确定的簇往往比仅由牛顿重力驱动的簇变得更加不稳定，这种效果在宇宙学时间尺度上会感觉到。
The evolution of galaxy clusters can be affected by the repulsion described by the cosmological constant. This conclusion is reached within the modified weak-field General Relativity approach where the cosmological constant Λenables to describe the common nature of the dark matter and the dark energy. Geometrical methods of theory of dynamical systems and the Ricci curvature criterion are used to reveal the difference in the instability properties of galaxy clusters which determine their evolutionary paths. Namely, it is shown that the clusters determined by the gravity with Λ-repulsion tend to become even more unstable than those powered only by Newtonian gravity, the effect to be felt at cosmological time scales.
