PROBING THE STATISTICS OF PRIMORDIAL ELUCTUATIONS AND THEIR EVOLUTION

被引：48

作者：

GAZTANAGA, E ^{[1
]}

YOKOYAMA, J ^{[1
]}

机构：

[1] KYOTO UNIV,YUKAWA INST THEORET PHYS,UJI RES CTR,UJI,KYOTO 611,JAPAN

来源：

ASTROPHYSICAL JOURNAL | 1993年 / 403卷 / 02期

关键词：

COSMOLOGY; THEORY; GALAXIES; CLUSTERING; DISTANCES AND REDSHIFTS; LARGE-SCALE STRUCTURE OF UNIVERSE;

D O I：

10.1086/172216

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The statistical distribution of fluctuations on various scales is analyzed here in terms of the counts in cells of smoothed density fields, using volume-limited samples of galaxy redshift catalogs. It is shown that the distribution on large scales, with volume average of the two-point correlation function of the smoothed field less than or similar to 0.05, is consistent with Gaussian. Statistics are shown to agree remarkably well with the negative binomial distribution, which has hierarchical correlations and a Gaussian behavior at large scales. If these observed properties correspond to the matter distribution, they suggest that our universe started with Gaussian fluctuations and evolved keeping hierarchical form.

引用

页码：450 / 465

页数：16

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