The large-scale smoothness of the Universe

Review

关键词: MICROWAVE BACKGROUND ANISOTROPIES;    2-DIMENSIONAL POWER SPECTRUM;    ANGULAR-CORRELATION FUNCTION;    2-POINT CORRELATION-FUNCTION;    CAMPANAS REDSHIFT SURVEY;    APM GALAXY SURVEY;    RADIO-SOURCES;    IRAS GALAXIES;    LOCAL GROUP;    SKY SURVEY;   

DOI  :  10.1038/16637

来源: SCIE

【 摘 要 】

The Universe is inhomogeneous-and essentially fractal-on the scale of galaxies and clusters of galaxies, but most cosmologists believe that on larger scales it becomes isotropic and homogeneous: this is the 'cosmological principle'. This principle was first adopted when observational cosmology was in its infancy, and was then little more than a conjecture. The data now available offer a quantitative picture of the gradual transition from small-scale fractal behaviour to large-scale homogeneity.

【 授权许可】

Free