CONICET | Buscador de Institutos y Recursos Humanos

Void evolution is strongly affected by the large scale environment around them. Large voids are dominated by expansion motions. However, there is a population of small collapsing voids. These voids tend to live in overdense environments. Their overdense surroundings slowly squeeze them as adjacent larger voids expand. In order to deepen our understanding of the nature of voids and the evolution of their properties we perform a statistical study focused on void centre velocities. We have examined the rest frame velocities of voids embedded in low density and overdense regions. We use cosmological simulations in order to analyse the dynamics and dene voids

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