BIG-BANG COSMOLOGY  

作　　者：K.A. Olive J.A. Peacock 

机构地区：[1]University of Minnesota [2]University of Edinburgh

出　　处：《Chinese Physics C》2016年第10期355-366,共12页中国物理C（英文版）

摘　　要：22.1. Introduction to Standard Big-Bang Model The observed expansion of the Universe [1-3] is a natural （almost inevitable） result of any homogeneous and isotropic cosmological model based on general relativity. However, by itself, the Hubble expansion does not provide sufficient evidence for what we generally refer to as the Big-Bang model of cosmology. While general relativity is in principle capable of describing the cosmology of any given distribution of matter, it is extremely fortunate that our Universe appears to be homogeneous and isotropic on large scales. Together, homogeneity and isotropy allow us to extend the Copernican Principle to the Cosmological Principle, stating that all spatial positions in the Universe are essentially equivalent.22.1. Introduction to Standard Big-Bang Model The observed expansion of the Universe [1-3] is a natural （almost inevitable） result of any homogeneous and isotropic cosmological model based on general relativity. However, by itself, the Hubble expansion does not provide sufficient evidence for what we generally refer to as the Big-Bang model of cosmology. While general relativity is in principle capable of describing the cosmology of any given distribution of matter, it is extremely fortunate that our Universe appears to be homogeneous and isotropic on large scales. Together, homogeneity and isotropy allow us to extend the Copernican Principle to the Cosmological Principle, stating that all spatial positions in the Universe are essentially equivalent.

分 类 号：O4[理学—物理]