Higher order statistics from the Edinburgh Durham Southern Galaxy Catalogue Survey .1. Counts in cells

被引:44
作者
Szapudi, I [1 ]
Meiksin, A [1 ]
Nichol, RC [1 ]
机构
[1] UNIV CHICAGO, DEPT ASTRON & ASTROPHYS, CHICAGO, IL 60637 USA
关键词
cosmology; theory; galaxies; clusters; general; large scale structure of universe;
D O I
10.1086/178123
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Counts in cells are used to analyze the higher order properties of the statistics of the Edinburgh/Durham Southern Galaxy Catalogue Survey (EDSGC). The probability distribution is obtained from an equal area projection source catalog with infinite oversampling over the range 0.015 degrees-2 degrees. The factorial moments of the resulting distribution and the s(N)'s characterizing the non-Gaussian nature of the distribution are extracted. These results are compared to previous results from the Automatic Plate Measuring Facility (APM) survey and to theoretical results from perturbation theory. The deprojected three-dimensional values corresponding to the s(N)'s are also determined. We find that the three-dimensional values match the scaling relation for strongly nonlinear clustering found in N-body simulations remarkably well, which suggests that the galaxies are reliable tracers of the underlying mass distribution.
引用
收藏
页码:15 / 21
页数:7
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