Simulating Voids

Abstract

We present a novel method for simulation of the interior of large cosmic voids, suitable for study of the formation and evolution of objects lying within such regions. Following Birkhoff's theorem, void regions dynamically evolve as universes with cosmological parameters that depend on the underdensity of the void. We derive the values of ${\Omega }_M$, ${\Omega }_{\Lambda }$, and $H_0$ that describe this evolution. We examine how the growth rate of structure and scale factor in a void differ from the background universe. Together with a prescription for the power spectrum of fluctuations, these equations provide the initial conditions for running specialized void simulations. The increased efficiency of such simulations, in comparison with general-purpose simulations, allows an improvement of upwards of twenty in the mass resolution. As a sanity check, we run a moderate resolution simulation ($N=128^3$ particles) and confirm that the resulting mass function of void halos is consistent with other theoretical and numerical models.

Accepted to ApJ., Dec. 11, 2003. 9 pages, 3 postscript figures. Changes made to respond to referee's comments

References in corpus (14)

• An excursion set model of hierarchical clustering: Ellipsoidal collapse and the moving barrier
• HOP: A New Group-Finding Algorithm for N-body Simulations
• The Void Phenomenon
• Voids in the PSCz Survey and the Updated Zwicky Catalog
• The structure of voids
• Galaxy Voids in Cold Dark Matter Universes
• An Imaging and Spectroscopic Survey of Galaxies within Prominent Nearby Voids. II. Morphologies, Star Formation and Faint Companions
• An Imaging and Spectroscopic Survey of Galaxies Within Prominent Nearby Voids. I. The Sample and Luminosity Distribution
• Voids in the Simulated Local Universe
• The Size and Shape of Local Voids
• Cosmological Adaptive Mesh Refinement
• A catalogue of the voids in the IRAS 1.2-Jy survey
• Void Scaling and Void Profiles in CDM Models
• The Probability Distribution Function of Light in the Universe: Results from Hydrodynamic Simulations

Cited by in corpus (67)

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• Environmental Dependence of Dark Matter Halo Growth I: Halo Merger Rates
• Massive Neutrinos Leave Fingerprints on Cosmic Voids
• First measurement of gravitational lensing by cosmic voids in SDSS
• Cosmic Voids: structure, dynamics and galaxies
• Morphology of the supercluster-void network in LCDM cosmology
• The Evidence of Absence: Galaxy Voids in the Excursion Set Formalism
• The VIMOS Public Extragalactic Redshift Survey: Measuring the growth rate of structure around cosmic voids
• Shapes and Sizes of Voids in the LCDM Universe: Excursion Set Approach
• A robust public catalogue of voids and superclusters in the SDSS Data Release 7 galaxy surveys
• The Void Size Function in Dynamical Dark Energy Cosmologies
• Voids in the 2dFGRS and LCDM simulations: spatial and dynamical properties
• The bias of cosmic voids in the presence of massive neutrinos
• A Cosmic Void Catalog of SDSS DR12 BOSS Galaxies
• Voids in the SDSS DR9: observations, simulations, and the impact of the survey mask
• A halo bias function measured deeply into voids without stochasticity
• Adventures in Friedmann Cosmology: An Educationally Detailed Expansion of the Cosmological Friedmann Equations
• The DEEP2 Galaxy Redshift Survey: The Evolution of Void Statistics from z~1 to z~0
• Towards understanding the structure of voids in the cosmic web
• Assembly of filamentary void galaxy configurations
• The Mass Function of Void Galaxies in the SDSS Data Release 2
• On the Star Formation Properties of Void Galaxies
• The dark matter of galaxy voids
• Cosmology with Equivalence Principle Breaking in the Dark Sector
• Dark matter voids in the SDSS galaxy survey
• The life and death of cosmic voids
• Supermassive Black Holes and Their Environments
• Halo abundances within the cosmic web
• Large-scale modulation of star formation in void walls
• A Detection of $z$~2.3 Cosmic Voids from 3D Lyman-$\alpha$ Forest Tomography in the COSMOS Field
• Measurement of the thermal Sunyaev-Zel'dovich effect around cosmic voids
• The metallicity of void dwarf galaxies
• Voids and the Cosmic Web: cosmic depressions & spatial complexity
• Sub-Megaparsec Individual Photometric Redshift Estimation from Cosmic Web Constraints
• Void galaxies in the nearby Universe. I. Sample description
• Updated void catalogs of the SDSS DR7 main sample
• The Dark Side of QSO Formation at High Redshifts
• On the importance of high redshift intergalactic voids
• UGC 3672: An unusual merging triplet of gas-rich galaxies in the Lynx-Cancer void
• First Structure Formation under the Influence of Gas-Dark Matter Streaming Velocity and Density: Impact of the Baryons-trace-dark matter Approximation
• On the equivalence between the effective cosmology and excursion set treatments of environment
• Configuration entropy of the Cosmic Web: Can voids mimic the dark energy?
• The Stellar Kinematics of Void Dwarf Galaxies Using KCWI
• HI Galaxy Signatures in the SARAO MeerKAT Galactic Plane Survey -- II. The Local Void and its substructure
• Void Galaxy Distribution: A Challenge for $\Lambda$CDM
• Testing the conditional mass function of dark matter halos against numerical N-body simulations
• Formation of First Galaxies inside Density Peaks and Voids under the Influence of Dark Matter-Baryon Streaming Velocity, I: Initial Condition and Simulation Scheme
• Determining the large-scale environmental dependence of gas-phase metallicity in dwarf galaxies
• Halo abundances and shear in void models
• Influence of the Void Environment on Chemical Abundances in Dwarf Galaxies and Implications for Connecting Star Formation and Halo Mass
• New Statistical Perspective to The Cosmic Void Distribution
• Dynamics of Void and its Shape in Redshift Space
• Merging Tree Algorithm of Growing Voids in Self Similar and CDM Models
• A Comparison of Void-Finding Algorithms using Crossing Numbers
• A spherical hydrodynamical model of cosmic voids in ΛCDM and beyond
• VIDE: The Void IDentification and Examination toolkit
• The central region of a void: an analytical solution
• Lognormal Distribution of Cosmic Voids in Simulations and Mocks
• $\Lambda$ effect in the cosmological expansion of voids
• Delicate curvature bounces in the no-boundary wave function and in the late universe
• Super sample covariance and the volume scaling of galaxy survey covariance matrices
• The Void Galaxy Survey: Morphology and Star Formation Properties of Void Galaxies
• DeepVoid: A Deep Learning Void Detector