Non-Gaussian morphology on large scales:: Minkowski functionals of the REFLEX cluster catalogue

被引：44

作者：

Kerscher, M

Mecke, K

Schuecker, P

Böhringer, H

Guzzo, L

Collins, CA

Schindler, S

De Grandi, S

Cruddace, R

机构：

[1] Univ Munich, Sekt Phys, D-80333 Munich, Germany

[2] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA

[3] Max Planck Inst Met Res, D-70569 Stuttgart, Germany

[4] Univ Stuttgart, Fak Phys, Inst Theoret & Angew Phys, D-70569 Stuttgart, Germany

[5] Max Planck Inst Extraterr Phys, D-85740 Garching, Germany

[6] Osserv Astron Brera, Merate, Italy

[7] Liverpool John Moores Univ, Liverpool L3 5UX, Merseyside, England

[8] USN, Res Lab, Washington, DC 20375 USA

来源：

ASTRONOMY & ASTROPHYSICS | 2001年 / 377卷 / 01期

关键词：

large-scale structure of Universe; galaxies : clusters : general; cosmology : observation; cosmology : theory;

D O I：

10.1051/0004-6361:20011063

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In order to quantify higher-order correlations of the galaxy cluster distribution we use a complete family of additive measures which give scale-dependent morphological information. Minkowski functionals can be expressed analytically in terms of integrals of n-point correlation functions. They can be compared with measured Minkowski functionals of volume limited samples extracted from the Reflex survey. We find significant non-Gaussian features in the large-scale spatial distribution of galaxy clusters. A Gauss-Poisson process can be excluded as a viable model for the distribution of galaxy clusters at the significance level of 95%.

引用

页码：1 / 16

页数：16