Unfolding the hierarchy of voids

被引：45

作者：

Aragon-Calvo, M. A. ^{[1
]}

van de Weygaert, R. ^{[2
]}

Araya-Melo, P. A. ^{[3
]}

Platen, E. ^{[2
]}

Szalay, A. S. ^{[1
]}

机构：

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

[2] Univ Groningen, Kapteyn Astron Inst, NL-9747 AV Groningen, Netherlands

[3] Jacobs Univ Bremen, D-28759 Bremen, Germany

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2010年 / 404卷 / 01期

关键词：

methods: N-body simulations; methods: data analysis; techniques: image processing; large-scale structure of Universe; EVOLUTION; UNIVERSE;

D O I：

10.1111/j.1745-3933.2010.00841.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a framework for the hierarchical identification and characterization of voids based on the Watershed Void Finder. The Hierarchical Void Finder is based on a generalization of the scale space of a density field invoked in order to trace the hierarchical nature and structure of cosmological voids. At each level of the hierarchy, the watershed transform is used to identify the voids at that particular scale. By identifying the overlapping regions between watershed basins in adjacent levels, the hierarchical void tree is constructed. Applications on a hierarchical Voronoi model and on a set of cosmological simulations illustrate its potential.

引用

页码：L89 / L93

页数：5

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