论文标题
空隙网络中的扩展关系：对本地宇宙动力学的影响并推断空间的度量
Scaling Relations in the Network of Voids: Implications for Local Universe Dynamics and Inferring the Metric of Space
论文作者
论文摘要
宇宙中物质的大规模分布形成了包含大型空隙的集群，细丝和墙壁网络。空隙又可以描述为一个细胞系统，其中空隙/细胞定义动态不同的区域。已经观察到由各种物理和生物学过程产生的细胞系统紧随其几何形状，拓扑和动力学的缩放定律。这些缩放定律从未被研究过宇宙学空隙，这是最大的已知细胞系统。使用宇宙学N体模拟，我们介绍了空隙网络的缩放关系的研究，将其有效性扩大了30多个数量级，相对于其他已知的细胞系统。 比例关系使我们可以从其几何形状和拓扑中对空隙的动态状态进行间接测量。利用我们的结果，我们解释了在宇宙后院崩溃的空隙的结果，在狮子座刺激中观察到的“局部速度异常”。 此外，空隙的几何形状和连通性直接取决于空间的曲率。在这里，我们建议将比例关系作为空间度量指标的独立和新颖的度量，并讨论它们在未来的星系调查中的使用。
The large-scale distribution of matter in the universe forms a network of clusters, filaments and walls enclosing large empty voids. Voids in turn can be described as a cellular system in which voids/cells define dynamically distinct regions. Cellular systems arising from a variety of physical and biological processes have been observed to closely follow scaling laws relating their geometry, topology and dynamics. These scaling laws have never been studied for cosmological voids, the largest known cellular system. Using a cosmological N-body simulation we present a study of the scaling relations of the network of voids, extending their validity by over 30 orders of magnitude in scale with respect to other known cellular systems. Scaling relations allow us to make indirect measurements of the dynamical state of voids from their geometry and topology. Using our results we interpret the "local velocity anomaly" observed in the Leo Spur as the result of a collapsing void in our cosmic backyard. Moreover, the geometry and connectivity of voids directly depends on the curvature of space. Here we propose scaling relations as an independent and novel measure of the metric of space and discuss their use in future galaxy surveys.
