Probing cosmology and gravity with redshift-space distortions around voids

Abstract

Cosmic voids in the large-scale structure of the Universe affect the peculiar motions of objects in their vicinity. Although these motions are difficult to observe directly, the clustering pattern of their surrounding tracers in redshift space is influenced in a unique way. This allows to investigate the interplay between densities and velocities around voids, which is solely dictated by the laws of gravity. With the help of $N$-body simulations and derived mock-galaxy catalogs we calculate the average density fluctuations around voids identified with a watershed algorithm in redshift space and compare the results with the expectation from general relativity and the $\Lambda$CDM model. We find linear theory to work remarkably well in describing the dynamics of voids. Adopting a Bayesian inference framework, we explore the full posterior of our model parameters and forecast the achievable accuracy on measurements of the growth rate of structure and the geometric distortion through the Alcock-Paczynski effect. Systematic errors in the latter are reduced from $\sim 15\%$ to $\sim 5\%$ when peculiar velocities are taken into account. The relative parameter uncertainties in galaxy surveys with number densities comparable to the SDSS MAIN (CMASS) sample probing a volume of $1h^{-3}{\mathrm{Gpc}}^3$ yield ${\sigma }_{f/b}/(f/b)\sim 2\%$ ($20\%$) and ${\sigma }_{D_{A}H}/D_{A}H\sim 0.2\%$ ($2\%$), respectively. At this level of precision the linear-theory model becomes systematics dominated, with parameter biases that fall beyond these values. Nevertheless, the presented method is highly model independent; its viability lies in the underlying assumption of statistical isotropy of the Universe.

38 pages, 14 figures. Published in JCAP. Referee comments incorporated, typos corrected, references added. Considerably improved results thanks to consideration of full covariance matrix in the MCMC analysis

References in corpus (29)

• A test of the nature of cosmic acceleration using galaxy redshift distortions
• Transients from Initial Conditions in Cosmological Simulations
• Galaxy Evolution from Halo Occupation Distribution Modeling of DEEP2 and SDSS Galaxy Clustering
• ZOBOV: a parameter-free void-finding algorithm
• Large-Scale Anisotropic Correlation Function of SDSS Luminous Red Galaxies
• Clustering of luminous red galaxies I: large scale redshift space distortions
• Weak lensing by voids in modified lensing potentials
• Redshift-Space Distortions with the Halo Occupation Distribution II: Analytic Model
• A measurement of the Alcock-Paczynski effect using cosmic voids in the SDSS
• Large-Scale Clustering of Cosmic Voids
• Tests of redshift-space distortions models in configuration space for the analysis of the BOSS final data release
• Self-similarity and universality of void density profiles in simulation and SDSS data
• Improving the precision matrix for precision cosmology
• Voids in Modified Gravity Reloaded: Eulerian Void Assignment
• Improving the modelling of redshift-space distortions: I. A bivariate Gaussian description for the galaxy pairwise velocity distributions
• The Persistent Percolation of Single-Stream Voids
• Testing cosmic geometry without dynamic distortions using voids
• Clues on void evolution III: Structure and dynamics in void shells
• Dark matter voids in the SDSS galaxy survey
• The life and death of cosmic voids
• Testing General Relativity with Growth rate measurement from Sloan Digital Sky Survey III Baryon Oscillations Spectroscopic Survey galaxies
• Cosmology with clustering anisotropies: disentangling dynamic and geometric distortions in galaxy redshift surveys
• Optimal Weighting in Galaxy Surveys: Application to Redshift-Space Distortions
• Edgeworth streaming model for redshift space distortions
• The VIMOS Public Extragalactic Redshift Survey (VIPERS): Reconstruction of the redshift-space galaxy density field
• The VIMOS Public Extragalactic Redshift Survey - Searching for Cosmic Voids
• Cosmological constraints from the redshift dependence of the Alcock-Paczynski test and volume effect: galaxy two-point correlation function
• The redshift-space galaxy two-point correlation function and baryon acoustic oscillations
• Cosmological Tests using Redshift Space Clustering in BOSS DR11

Cited by in corpus (99)

• Large-Scale Galaxy Bias
• Constraints on Cosmology and Gravity from the Dynamics of Voids
• Cosmological Tests of Gravity
• Massive Neutrinos Leave Fingerprints on Cosmic Voids
• Beyond BAO: improving cosmological constraints from BOSS with measurement of the void-galaxy cross-correlation
• The Santiago-Harvard-Edinburgh-Durham void comparison I: SHEDding light on chameleon gravity tests
• Cosmic Voids and Void Lensing in the Dark Energy Survey Science Verification Data
• Towards an Optimal Estimation of Cosmological Parameters with the Wavelet Scattering Transform
• Redshift-space distortions around voids
• The VIMOS Public Extragalactic Redshift Survey: Measuring the growth rate of structure around cosmic voids
• A marked correlation function for constraining modified gravity models
• The Novel Probes Project -- Tests of Gravity on Astrophysical Scales
• Testing Screened Modified Gravity
• The Void Size Function in Dynamical Dark Energy Cosmologies
• Precision cosmology with voids in the final BOSS data
• Testing the theory of gravity with DESI: estimators, predictions and simulation requirements
• The completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: geometry and growth from the anisotropic void-galaxy correlation function in the luminous red galaxy sample
• The bias of cosmic voids in the presence of massive neutrinos
• The GIGANTES dataset: precision cosmology from voids in the machine learning era
• A Cosmic Void Catalog of SDSS DR12 BOSS Galaxies
• Multipole analysis of redshift-space distortions around cosmic voids
• Linear redshift space distortions for cosmic voids based on galaxies in redshift space
• Consistency of the growth rate in different environments with the 6dF Galaxy Survey: measurement of the void-galaxy and galaxy-galaxy correlation functions
• Using Voids to Unscreen Modified Gravity
• Euclid: Forecasts from redshift-space distortions and the Alcock-Paczynski test with cosmic voids
• Testing Low-Redshift Cosmic Acceleration with Large-Scale Structure
• Redshift-space distortions with split densities
• Finding cosmic voids and filament loops using topological data analysis
• Going Beyond the Galaxy Power Spectrum: an Analysis of BOSS Data with Wavelet Scattering Transforms
• Cosmological exploitation of the size function of cosmic voids identified in the distribution of biased tracers
• Euclid: Cosmological forecasts from the void size function
• Cosmological inference from Bayesian forward modelling of deep galaxy redshift surveys
• Cosmological constraints from the BOSS DR12 void size function
• Dark Energy Survey Year 1 results: The relationship between mass and light around cosmic voids
• An accurate linear model for redshift space distortions in the void-galaxy correlation function
• On the relative bias of void tracers in the Dark Energy Survey
• Cosmological Information in the Marked Power Spectrum of the Galaxy Field
• Redshift-space effects in voids and their impact on cosmological tests. Part I: the void size function
• Large-scale redshift space distortions in modified gravity theories
• New constraints on the linear growth rate using cosmic voids in the SDSS DR12 datasets
• Constraints on the growth of structure around cosmic voids in eBOSS DR14
• Weak lensing by voids in weak lensing maps
• The Cosmic Graph: Optimal Information Extraction from Large-Scale Structure using Catalogues
• Cosmological test of gravity using weak lensing voids
• DIVE in the cosmic web: voids with Delaunay Triangulation from discrete matter tracer distributions
• Constraint of Void Bias on Primordial non-Gaussianity
• Testing the imprint of non-standard cosmologies on void profiles using Monte Carlo random walks
• A Zeldovich reconstruction method for measuring redshift space distortions using cosmic voids
• Redshift-space effects in voids and their impact on cosmological tests. Part II: the void-galaxy cross-correlation function
• Precise Cosmological Constraints from BOSS Galaxy Clustering with a Simulation-Based Emulator of the Wavelet Scattering Transform
• Clustering and Bias Measurements of SDSS Voids
• Cosmic voids uncovered -- first-order statistics of depressions in the biased density field
• Cosmology with cosmic web environments I. Real-space power spectra
• A Parameter-Masked Mock Data Challenge for Beyond-Two-Point Galaxy Clustering Statistics
• Testing the spherical evolution of cosmic voids
• Why Cosmic Voids Matter: Nonlinear Structure & Linear Dynamics
• Non-fiducial cosmological test from geometrical and dynamical distortions around voids
• DEMNUni: disentangling dark energy from massive neutrinos with the void size function
• Void profile from Planck lensing potential map
• The halo bias inside cosmic voids
• The Halo Void (Dust) Model of Large Scale Structure
• An improved model of redshift-space distortions around voids: application to quintessence dark energy
• Euclid: Cosmology forecasts from the void-galaxy cross-correlation function with reconstruction
• The universal multiplicity function: counting halos and voids
• How to Build a Catalogue of Linearly-Evolving Cosmic Voids
• Guess the cheese flavour by the size of its holes: A cosmological test using the abundance of Popcorn voids
• Cosmological measurements from void-galaxy and galaxy-galaxy clustering in the Sloan Digital Sky Survey
• Testing $f(R)$ Gravity With Scale Dependent Cosmic Void Velocity Profiles
• The clustering of critical points in the evolving cosmic web
• Volume Statistics as a Probe of Large-Scale Structure
• Cosmological Probes of Structure Growth and Tests of Gravity
• Iterative removal of redshift space distortions from galaxy clustering
• Separate Universe Void Bias
• The sparkling Universe: Clustering of voids and void clumps
• How do galaxy properties affect void statistics?
• Machine-learning cosmology from void properties
• Got plenty of nothing: cosmic voids as a probe of particle dark matter
• Towards unveiling the large-scale nature of gravity with the wavelet scattering transform
• Challenges in Constraining Gravity with Cosmic Voids
• Evolution of density and velocity profiles of dark matter and dark energy in spherical voids
• Non-comoving baryons and cold dark matter in cosmic voids
• Cosmology from one galaxy in a void?
• The Alcock Paczynski test with 21cm intensity field
• Intrinsic alignments of galaxies around cosmic voids
• Unveiling the Universe with Emerging Cosmological Probes
• The galaxy bias profile of cosmic voids
• Cosmological Inference with Cosmic Voids and Neural Network Emulators
• Voids in the Cosmic Web as a probe of dark energy
• Proca-stinated Cosmology II: Matter, Halo, and Lensing Statistics in the vector Galileon
• A spherical hydrodynamical model of cosmic voids in ΛCDM and beyond
• Galaxy Pairs in Cosmic Voids
• Modelling the environmental dependence of the growth rate
• The Completed SDSS-IV Extended Baryon Oscillation Spectroscopic Survey: Growth rate of structure measurement from cosmic voids
• Cosmology with Cosmic Voids
• Multivariate analysis of cosmic void characteristics
• Mapping the cosmic mass distribution with stacked weak gravitational lensing and Doppler lensing
• Cosmic voids and BAO with relative baryon-CDM perturbations
• Ringing the universe with cosmic emptiness: void properties through a combined analysis of stacked weak gravitational and Doppler lensing
• Visualising relativistic effects in redshift space distortions of large scale structure