Towards understanding the structure of voids in the cosmic web

Abstract

Our goal is to see how density waves of different scale combine to form voids between galaxy systems of various scale. We perform numerical simulations of structure formation in cubes of size 100 and 256 Mpc/h, with resolutions 256^3 and 512^3 particles and cells. To understand the role of density perturbations of various scale we cut power spectra at scales from 8 to 128 Mpc/h, using in all series identical initial random realisations. We find that small haloes and short filaments form all over the simulation box, if perturbations only up to scale 8 Mpc/h are present. The phenomenon of large multi-scale voids in the cosmic web requires the presence of an extended spectrum of primordial density perturbations. The void phenomenon is due to the action of two processes: the synchronisation of density perturbations of medium and large scales, and the suppression of galaxy formation in low-density regions by the combined action of negative sections of medium- and large-scale density perturbations, so that their densities are less than the mean density, and thus during the evolution their densities decrease.

16 pages, 11 figures, revised version

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Cited by in corpus (36)

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• The abundance of voids and the excursion set formalism
• The Hierarchical Structure and Dynamics of Voids
• Dark Photon Oscillations in Our Inhomogeneous Universe
• Clues on void evolution II: Measuring density and velocity profiles on SDSS galaxy redshift space distortions
• The Challenge of the Largest Structures in the Universe to Cosmology
• An Interacting Galaxy System Along a Filament in a Void
• A giant ring-like structure at 0.78<z<0.86 displayed by GRBs
• Signatures of the Primordial Universe from Its Emptiness: Measurement of Baryon Acoustic Oscillations from Minima of the Density Field
• Alignment of galaxies relative to their local environment in SDSS-DR8
• Imprint of DES super-structures on the Cosmic Microwave Background
• Multimodality of rich clusters from the SDSS DR8 within the supercluster-void network
• Assembly of filamentary void galaxy configurations
• Cosmic troublemakers: the Cold Spot, the Eridanus Supervoid, and the Great Walls
• Modeling Dark Photon Oscillations in Our Inhomogeneous Universe
• Unusual A2142 supercluster with a collapsing core: distribution of light and mass
• Discovery of a Supercluster in the eROSITA Final Equatorial Depth Survey: X-ray Properties, Radio Halo, and Double Relics
• Probing Galaxy Assembly Bias in BOSS Galaxies Using Void Probabilities
• Some statistical remarks on the Giant GRB Ring
• Tracing high redshift cosmic web with quasar systems
• Response approach to the squeezed-limit bispectrum: application to the correlation of quasar and Lyman-$\alpha$ forest power spectrum
• Death at watersheds: galaxy quenching in low-density environments
• Hierarchical structure of the cosmic web and galaxy properties
• Zipf's law for cosmic structures: how large are the greatest structures in the universe?
• Metal Abundances and Star-Formation Rates of Emission-Line Galaxies in and around the Bootes Void
• Shell-like structures in our cosmic neighbourhood
• Voids and Superstructures: correlations and induced large-scale velocity flows
• Study of galaxies in the Lynx-Cancer void. VI. HI-observations with the Nancay Radio Telescope
• The biasing phenomenon
• Structure in the 3D Galaxy Distribution: II. Voids and Watersheds of Local Maxima and Minima
• XMP gas-rich dwarfs in Nearby Voids: candidate selection
• Search for a possible quasi-periodic structure based on data of the SDSS DR12 LOWZ
• Observed Cosmological Reexpansion in Minimal QFT with Bose and Fermi Fields
• The richest clusters in the Coma and Leo superclusters: Properties and evolution