2007

A Cosmic Watershed: the WVF Void Detection Technique

Platen, Erwin, van de Weygaert, Rien, Jones, Bernard J. T.

Understand

On megaparsec scales the Universe is permeated by an intricate filigree of clusters, filaments, sheets and voids, the Cosmic Web.

For the understanding of its dynamical and hierarchical history it is crucial to identify objectively its complex morphological components.
One of the most characteristic aspects is that of the dominant underdense Voids, the product of a hierarchical process driven by the collapse of minor voids in addition to the merging of large ones.
In this study we present an objective void finder technique which involves a minimum of assumptions about the scale, structure and shape of voids.

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