Testing the spherical evolution of cosmic voids

Abstract

We study the spherical evolution model for voids in $\Lambda$CDM, where the evolution of voids is governed by dark energy at an earlier time than that for the whole universe or in overdensities. We show that the presence of dark energy suppresses the growth of peculiar velocities, causing void shell-crossing to occur at progressively later epochs as ${\Omega }_{\Lambda }$ increases. We apply the spherical model to evolve the initial conditions of N-body simulated voids and compare the resulting final void profiles. We find that the model is successful in tracking the evolution of voids with radii greater than $30h^{-1}\mathrm{Mpc}$, implying that void profiles could be used to constrain dark energy. We find that the initial peculiar velocities of voids play a significant role in shaping their evolution. Excluding the peculiar velocity in the evolution model delays the time of shell crossing.

9 pages, 7 figures, accepted by MNRAS

References in corpus (9)

• Dark Energy and the Accelerating Universe
• An Imprint of Super-Structures on the Microwave Background due to the Integrated Sachs-Wolfe Effect
• The darkness that shaped the void: dark energy and cosmic voids
• A measurement of the Alcock-Paczynski effect using cosmic voids in the SDSS
• The stacked ISW signal of rare superstructures in ΛCDM
• Voids in Modified Gravity Reloaded: Eulerian Void Assignment
• Voids in cosmological simulations over cosmic time
• On the observability of coupled dark energy with cosmic voids
• Gaussian Approximation of Peak Values in the Integrated Sachs-Wolfe Effect

Cited by in corpus (20)

• The Santiago-Harvard-Edinburgh-Durham void comparison I: SHEDding light on chameleon gravity tests
• On the linearity of tracer bias around voids
• The Santiago-Harvard-Edinburgh-Durham void comparison II: unveiling the Vainshtein screening using weak lensing
• The lensing and temperature imprints of voids on the Cosmic Microwave Background
• Studying galaxy troughs and ridges using Weak Gravitational Lensing with the Kilo-Degree Survey
• Modelling Void Abundance in Modified Gravity
• Redshift-space distortions with split densities
• Cosmic voids: a novel probe to shed light on our Universe
• Baryon effects on void statistics in the EAGLE simulation
• Cosmological test of gravity using weak lensing voids
• A tomographic map of the large-scale matter distribution using the eBOSS Stripe 82 Ly-$\alpha$ forest
• Cosmic Voids in Evolving Dark Sector Cosmologies: the Low Redshift Universe
• Cosmic Voids in Evolving Dark Sector Cosmologies: the High Redshift Universe
• Ridges in the Dark Energy Survey for cosmic trough identification
• Non-comoving baryons and cold dark matter in cosmic voids
• Evolution of density and velocity profiles of dark matter and dark energy in spherical voids
• DESIVAST: A Catalog of Low-Redshift Voids using Data from the DESI DR1 Bright Galaxy Survey
• A spherical hydrodynamical model of cosmic voids in ΛCDM and beyond
• Cosmology with Cosmic Voids
• Evolution of Cosmic Voids in the Schrodinger-Poisson Formalism