Quantifying the evolution of higher order clustering

Citation
J. Schmalzing et al., Quantifying the evolution of higher order clustering, M NOT R AST, 309(4), 1999, pp. 1007-1016
Citations number
44
Categorie Soggetti
Space Sciences
Journal title
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN journal
00358711 → ACNP
Volume
309
Issue
4
Year of publication
1999
Pages
1007 - 1016
Database
ISI
SICI code
0035-8711(19991111)309:4<1007:QTEOHO>2.0.ZU;2-Y
Abstract
We use a high-resolution dissipationless simulation to study the evolution of the dark matter and halo distributions in a spatially flat cosmological model dominated by a cosmological constant Lambda and cold dark matter (Lam bda CDM). In order to quantify the evolution of structure, we calculate the Minkowski functionals of the haloes and the dark matter component at vario us redshifts. A comparison of Minkowski functionals and the more standard c orrelation function analysis shows that the Minkowski functionals contain i nformation about correlation functions of arbitrary order. While little evo lution of the Minkowski functionals of haloes between z = 4 and 0 is observ ed, we find that the Minkowski functionals of the dark matter evolve rapidl y with time. The difference of the Minkowski functionals of haloes and dark matter can be interpreted as a scale-dependent bias. This implies that sca le-dependent bias is a property not only of the two-point halo correlation function, but also of correlation functions of higher order.