Modelling non-linear redshift-space distortions in the galaxy clustering pattern: systematic errors on the growth rate parameter

Abstract

We investigate the ability of state-of-the-art redshift-space distortions models for the galaxy anisotropic two-point correlation function ξ(r_p, π), to recover precise and unbiased estimates of the linear growth rate of structure f, when applied to catalogues of galaxies characterised by a realistic bias relation. To this aim, we make use of a set of simulated catalogues at z = 0.1 and z = 1 with different luminosity thresholds, obtained by populating dark-matter haloes from a large N-body simulation using halo occupation prescriptions. We examine the most recent developments in redshift-space distortions modelling, which account for non-linearities on both small and intermediate scales produced respectively by randomised motions in virialised structures and non-linear coupling between the density and velocity fields. We consider the possibility of including the linear component of galaxy bias as a free parameter and directly estimate the growth rate of structure f. Results are compared to those obtained using the standard dispersion model, over different ranges of scales.We find that the model of Taruya et al. (2010), the most sophisticated one considered in this analysis, provides in general the most unbiased estimates of the growth rate of structure, with systematic errors within 4% over a wide range of galaxy populations spanning luminosities between L > L* and L > 3L*. The scale-dependence of galaxy bias plays a role on recovering unbiased estimates of f when fitting quasi non-linear scales. Its effect is particularly severe for most luminous galaxies, for which systematic effects in the modelling might be more difficult to mitigate and have to be further investigated. [...]

17 pages, 16 figures, Accepted for publication in MNRAS

References in corpus (15)

• Cosmological Constraints from the SDSS Luminous Red Galaxies
• A test of the nature of cosmic acceleration using galaxy redshift distortions
• Galaxy Evolution from Halo Occupation Distribution Modeling of DEEP2 and SDSS Galaxy Clustering
• Testing cosmological structure formation using redshift-space distortions
• The shape of the SDSS DR5 galaxy power spectrum
• The 2dF-SDSS LRG and QSO Survey: QSO clustering and the L-z degeneracy
• A critical look at cosmological perturbation theory techniques
• The 2dF-SDSS LRG and QSO Survey: The LRG 2-Point Correlation Function and Redshift-Space Distortions
• Large-Scale Anisotropic Correlation Function of SDSS Luminous Red Galaxies
• Nonlinear Perturbation Theory Integrated with Nonlocal Bias, Redshift-space Distortions, and Primordial Non-Gaussianity
• Clustering of luminous red galaxies I: large scale redshift space distortions
• The dynamical state of brightest cluster galaxies and the formation of clusters
• Systematic Effects on Determination of the Growth Factor from Redshift-space Distortions
• Combining weak lensing tomography and spectroscopic redshift surveys
• Probing deviations from General Relativity with the Euclid spectroscopic survey

Cited by in corpus (56)

• The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: cosmological analysis of the DR12 galaxy sample
• The VIMOS Public Extragalactic Redshift Survey (VIPERS). An unprecedented view of galaxies and large-scale structure at 0.5<z<1.2
• The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: measurement of the BAO and growth rate of structure of the luminous red galaxy sample from the anisotropic correlation function between redshifts 0.6 and 1
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Testing gravity with redshift-space distortions using the power spectrum multipoles
• The VIMOS Public Extragalactic Redshift Survey (VIPERS). Galaxy clustering and redshift-space distortions at z=0.8 in the first data release
• The Clustering of Galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey (BOSS): measuring growth rate and geometry with anisotropic clustering
• Galaxy And Mass Assembly (GAMA): improved cosmic growth measurements using multiple tracers of large-scale structure
• The Clustering of Galaxies in the SDSS-III DR9 Baryon Oscillation Spectroscopic Survey: Testing Deviations from $\Lambda$ and General Relativity using anisotropic clustering of galaxies
• The VIMOS Public Extragalactic Redshift Survey (VIPERS): The growth of structures at $0.5<z<1.2$ from redshift-space distortions in the clustering of the PDR-2 final sample
• The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey DR14 quasar sample: measurement of the growth rate of structure from the anisotropic correlation function between redshift 0.8 and 2.2
• Velocity Bias from the Small Scale Clustering of SDSS-III BOSS Galaxies
• Redshift-space distortions around voids
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: cosmological constraints from the full shape of the clustering wedges
• Are peculiar velocity surveys competitive as a cosmological probe?
• The effect of baryons on redshift space distortions and cosmic density and velocity fields in the EAGLE simulation
• The VIMOS Public Extragalactic Redshift Survey (VIPERS). Gravity test from the combination of redshift-space distortions and galaxy-galaxy lensing at $0.5<z<1.2$
• Rapid modelling of the redshift-space power spectrum multipoles for a masked density field
• Interpreting measurements of the anisotropic galaxy power spectrum
• A clear and measurable signature of modified gravity in the galaxy velocity field
• Cosmological Forecasts for Combined and Next Generation Peculiar Velocity Surveys
• Linear redshift space distortions for cosmic voids based on galaxies in redshift space
• Tests of redshift-space distortions models in configuration space for the analysis of the BOSS final data release
• Cosmological constraints from the BOSS DR12 void size function
• Reconstructing the distribution of haloes and mock galaxies below the resolution limit in cosmological simulations
• Higgs-Dilaton Cosmology: An inflation - dark energy connection and forecasts for future galaxy surveys
• The road ahead of Horndeski: cosmology of surviving scalar-tensor theories
• Improving the modelling of redshift-space distortions: I. A bivariate Gaussian description for the galaxy pairwise velocity distributions
• Growth of Cosmic Structure
• The VIMOS Public Extragalactic Redshift Survey (VIPERS): An unbiased estimate of the growth rate of structure at $⟨\mathbf{z}⟩=0.85$ using the clustering of luminous blue galaxies
• The Completed SDSS-IV Extended Baryon Oscillation Spectroscopic Survey: N-body Mock Challenge for Galaxy Clustering Measurements
• The VIMOS Public Extragalactic Redshift Survey (VIPERS): Unbiased clustering estimate with VIPERS slit assignment
• Galaxy clustering, CMB and supernova data constraints on $\varphi$CDM model with massive neutrinos
• No evidence for modifications of gravity from galaxy motions on cosmological scales
• The BOSS-WiggleZ overlap region II: dependence of cosmic growth on galaxy type
• Euclid: Forecast constraints on consistency tests of the $\Lambda$CDM model
• Testing gravity with galaxy-galaxy lensing and redshift-space distortions using CFHT-Stripe 82, CFHTLenS and BOSS CMASS datasets
• Cosmological information content in redshift-space power spectrum of SDSS-like galaxies in the quasi-nonlinear regime up to $k=0.3h$Mpc${}^{-1}$
• C${}^3$-Cluster Clustering Cosmology I. New constraints on the cosmic growth rate at z~0.3 from redshift-space clustering anisotropies
• Study on the mapping of dark matter clustering from real space to redshift space
• Clustering and redshift-space distortions in modified gravity models with massive neutrinos
• Fitting and forecasting non-linear coupled dark energy
• On the Systematic Errors of Cosmological-Scale Gravity Tests using Redshift Space Distortion: Non-linear Effects and the Halo Bias
• Effects of Linear Redshift Space Distortions and Perturbation Theory on BAOs: A 3D Spherical Analysis
• Velocity and mass bias in the distribution of dark matter halos
• Redshift-space distortions of galaxies, clusters and AGN: testing how the accuracy of growth rate measurements depends on scales and sample selections
• Group-galaxy correlations in redshift space as a probe of the growth of structure
• The impact of systematic uncertainties in N-body simulations on the precision cosmology from galaxy clustering: a halo model approach
• Validating the methodology for constraining the linear growth rate from clustering anisotropies
• Remapping simulated halo catalogues in redshift space
• Choose to smooth: Gaussian streaming with the truncated Zel'dovich approximation
• Euclid: Testing the Copernican principle with next-generation surveys
• Detectable Data-driven Features in the Primordial Scalar Power Spectrum
• Angular systematics-free cosmological analysis of galaxy clustering in configuration space
• Mass bias and cosmological constraints from Planck cluster clustering
• Galaxy and Mass Assembly (GAMA): Probing galaxy-group correlations in redshift space with the halo streaming model
• Modelling the tightest relation between galaxy properties and dark matter halo properties from hydrodynamical simulations of galaxy formation