论文标题
宇宙结构的生长
Growth of Cosmic Structure
论文作者
论文摘要
我们回顾了当今宇宙学中最富有成果的领域之一，即桥梁理论和数据 - 大规模结构的时间增长。我们介绍了成长的物理基础，并在简单的宇宙学模型中得出了其行为。在这样做的同时，我们解释了如何使用增长的测量来理解理论。然后，我们回顾了如何使用一些最成熟的宇宙学探针 - 星系聚类，重力透镜，大量星系，宇宙速度和宇宙微波背景 - 用于探测结构的生长。我们报告了当前对增长的限制，这些限制总结为参数组合$fσ_8$作为红移的函数的测量，或者是质量波动振幅参数$ s_8 $。我们最终说明了几种统计方法，从“增长指数”参数化到更一般的生长和几何形状比较，它们可以彻底测试标准宇宙学模型，并表明对一般相对性的修改存在。
We review one of the most fruitful areas in cosmology today that bridge theory and data - the temporal growth of large-scale structure. We go over the growth's physical foundations, and derive its behavior in simple cosmological models. While doing so, we explain how measurements of growth can be used to understand theory. We then review how some of the most mature cosmological probes - galaxy clustering, gravitational lensing, the abundance of clusters of galaxies, cosmic velocities, and cosmic microwave background - can be used to probe the growth of structure. We report the current constraints on growth, which are summarized as measurements of the parameter combination $fσ_8$ as a function of redshift, or else as the mass fluctuation amplitude parameter $S_8$. We finally illustrate several statistical approaches, ranging from the "growth index" parameterization to more general comparisons of growth and geometry, that can sharply test the standard cosmological model and indicate the presence of modifications to general relativity.
