Cosmological Simulations for Combined-Probe Analyses: Covariance and Neighbour-Exclusion Bias

Abstract

We present a public suite of weak lensing mock data, extending the Scinet Light Cone Simulations (SLICS) to simulate cross-correlation analyses with different cosmological probes. These mocks include KiDS-450- and LSST-like lensing data, cosmic microwave background lensing maps and simulated spectroscopic surveys that emulate the GAMA, BOSS and 2dFLenS galaxy surveys. With 844 independent realisations, our mocks are optimised for combined-probe covariance estimation, which we illustrate for the case of a joint measurement involving cosmic shear, galaxy-galaxy lensing and galaxy clustering from KiDS-450 and BOSS data. With their high spatial resolution, the SLICS are also optimal for predicting the signal for novel lensing estimators, for the validation of analysis pipelines, and for testing a range of systematic effects such as the impact of neighbour-exclusion bias on the measured tomographic cosmic shear signal. For surveys like KiDS and DES, where the rejection of neighbouring galaxies occurs within ~2 arcseconds, we show that the measured cosmic shear signal will be biased low, but by less than a percent on the angular scales that are typically used in cosmic shear analyses. The amplitude of the neighbour-exclusion bias doubles in deeper, LSST-like data. The simulation products described in this paper are made available at http://slics.roe.ac.uk/.

30 pages; All simulation products are made publicly available, updated to journal accepted version

References in corpus (106)

• Planck 2015 results. XIII. Cosmological parameters
• A Universal Density Profile from Hierarchical Clustering
• Nine-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Parameter Results
• Simulating the joint evolution of quasars, galaxies and their large-scale distribution
• The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: cosmological analysis of the DR12 galaxy sample
• Large scale bias and the peak background split
• Weak Gravitational Lensing
• Profiles of dark haloes: evolution, scatter, and environment
• Stable clustering, the halo model and nonlinear cosmological power spectra
• Ellipsoidal collapse and an improved model for the number and spatial distribution of dark matter haloes
• An analytic model for the spatial clustering of dark matter haloes
• Bayesian photometric redshift estimation
• Revising the Halofit Model for the Nonlinear Matter Power Spectrum
• KiDS-450: Cosmological parameter constraints from tomographic weak gravitational lensing
• The Large Scale Bias of Dark Matter Halos: Numerical Calibration and Model Tests
• Power Spectrum Analysis of Three-Dimensional Redshift Surveys
• Galaxy Clustering in the Completed SDSS Redshift Survey: The Dependence on Color and Luminosity
• CFHTLenS: The Canada-France-Hawaii Telescope Lensing Survey
• Concentration, Spin and Shape of Dark Matter Haloes as a Function of the Cosmological Model: WMAP1, WMAP3 and WMAP5 results
• A 2% Distance to z=0.35 by Reconstructing Baryon Acoustic Oscillations - I : Methods and Application to the Sloan Digital Sky Survey
• Galaxy And Mass Assembly: Stellar Mass Estimates
• Galaxy And Mass Assembly (GAMA): end of survey report and data release 2
• Bayesian Galaxy Shape Measurement for Weak Lensing Surveys - III. Application to the Canada-France-Hawaii Telescope Lensing Survey
• Gravitational Lensing Analysis of the Kilo Degree Survey
• An accurate halo model for fitting non-linear cosmological power spectra and baryonic feedback models
• The Canadian Cluster Comparison Project: detailed study of systematics and updated weak lensing masses
• Statistical Analysis of Galaxy Surveys - I. Robust error estimation for 2-point clustering statistics
• Galaxy and Mass Assembly (GAMA): The GAMA Galaxy Group Catalogue (G3Cv1)
• CFHTLenS: Combined probe cosmological model comparison using 2D weak gravitational lensing
• Ray-tracing through the Millennium Simulation: Born corrections and lens-lens coupling in cosmic shear and galaxy-galaxy lensing
• The Skewness of the Aperture Mass Statistic
• Systematic errors in weak lensing: application to SDSS galaxy-galaxy weak lensing
• CosmoSIS: modular cosmological parameter estimation
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: a large sample of mock galaxy catalogues
• KiDS-450 + 2dFLenS: Cosmological parameter constraints from weak gravitational lensing tomography and overlapping redshift-space galaxy clustering
• Planck 2015 results. XV. Gravitational lensing
• The Atacama Cosmology Telescope: Temperature and Gravitational Lensing Power Spectrum Measurements from Three Seasons of Data
• CosmoLike - Cosmological Likelihood Analyses for Photometric Galaxy Surveys
• Galaxy And Mass Assembly (GAMA): the G02 field, Herschel-ATLAS target selection and Data Release 3
• Accurate halo-model matter power spectra with dark energy, massive neutrinos and modified gravitational forces
• Practical Weak Lensing Shear Measurement with Metacalibration
• Bayesian Galaxy Shape Measurement for Weak Lensing Surveys -I. Methodology and a Fast Fitting Algorithm
• Parameter inference with estimated covariance matrices
• KiDS+GAMA: Cosmology constraints from a joint analysis of cosmic shear, galaxy-galaxy lensing and angular clustering
• The Coyote Universe Extended: Precision Emulation of the Matter Power Spectrum
• Analysis of two-point statistics of cosmic shear: I. Estimators and covariances
• The WiggleZ Dark Energy Survey: testing the cosmological model with baryon acoustic oscillations at z=0.6
• The MICE Grand Challenge Lightcone Simulation I: Dark matter clustering
• redMaGiC: Selecting Luminous Red Galaxies from the DES Science Verification Data
• Origins of weak lensing systematics, and requirements on future instrumentation (or knowledge of instrumentation)
• Super-Sample Covariance in Simulations
• Cosmology with the shear-peak statistics
• The impact of baryons on the matter power spectrum from the Horizon-AGN cosmological hydrodynamical simulation
• The Impact of Non-Gaussian Errors on Weak Lensing Surveys
• Cosmological Constraints from a Combination of Galaxy Clustering and Lensing -- III. Application to SDSS Data
• The BAHAMAS project: the CMB--large-scale structure tension and the roles of massive neutrinos and galaxy formation
• Dark matter halo properties of GAMA galaxy groups from 100 square degrees of KiDS weak lensing data
• Cosmology Constraints from the Weak Lensing Peak Counts and the Power Spectrum in CFHTLenS
• The Effective Number Density of Galaxies for Weak Lensing Measurements in the LSST Project
• Full-sky Gravitational Lensing Simulation for Large-area Galaxy Surveys and Cosmic Microwave Background Experiments
• High Performance P3M N-body code: CUBEP3M
• Cosmology constraints from shear peak statistics in Dark Energy Survey Science Verification data
• Calibration of weak-lensing shear in the Kilo-Degree Survey
• KiDS-450: Cosmological Constraints from Weak Lensing Peak Statistics - II: Inference from Shear Peaks using N-body Simulations
• The Mira-Titan Universe: Precision Predictions for Dark Energy Surveys
• Density split statistics: Cosmological constraints from counts and lensing in cells in DES Y1 and SDSS data
• Simulating weak lensing by large scale structure
• Baryons, Neutrinos, Feedback and Weak Gravitational Lensing
• The stellar-to-halo mass relation of GAMA galaxies from 100 square degrees of KiDS weak lensing data
• Cosmic Shear Measurements with DES Science Verification Data
• Cosmological Constraints From Weak Lensing Peak Statistics With CFHT Stripe 82 Survey
• Cosmic shear covariance: The log-normal approximation
• Density split statistics: joint model of counts and lensing in cells
• RCSLenS: The Red Cluster Sequence Lensing Survey
• The 2-degree Field Lensing Survey: design and clustering measurements
• RCSLenS: Testing gravitational physics through the cross-correlation of weak lensing and large-scale structure
• Simulations of Weak Gravitational Lensing - II : Including Finite Support Effects in Cosmic Shear Covariance Matrices
• The-wiZZ: Clustering redshift estimation for everyone
• KiDS+2dFLenS+GAMA: Testing the cosmological model with the $E_{\mathrm{G}}$ statistic
• Unveiling Galaxy Bias via the Halo Model, KiDS and GAMA
• A Lightcone Catalogue from the Millennium-XXL Simulation
• The masses of satellites in GAMA galaxy groups from 100 square degrees of KiDS weak lensing data
• Gravitational Lensing Simulations I : Covariance Matrices and Halo Catalogues
• Dark Energy Survey Year 1 Results: The Impact of Galaxy Neighbours on Weak Lensing Cosmology with im3shape
• The WiggleZ Dark Energy Survey: Final Data Release and the Metallicity of UV-Luminous Galaxies
• Testing gravity on large scales by combining weak lensing with galaxy clustering using CFHTLenS and BOSS CMASS
• The skewed weak lensing likelihood: why biases arise, despite data and theory being sound
• Sample variance in weak lensing: how many simulations are required?
• Dark Energy Survey Year 1 Results: Cross-Correlation Redshifts in the DES -- Calibration of the Weak Lensing Source Redshift Distributions
• A bias in cosmic shear from galaxy selection: results from ray-tracing simulations
• CFHTLenS and RCSLenS Cross-Correlation with Planck Lensing Detected in Fourier and Configuration Space
• DES Y1 Results: Validating cosmological parameter estimation using simulated Dark Energy Surveys
• KiDS-450: Tomographic Cross-Correlation of Galaxy Shear with {\it Planck} Lensing
• ICE-COLA: fast simulations for weak lensing observables
• Scale dependence of galaxy biasing investigated by weak gravitational lensing: An assessment using semi-analytic galaxies and simulated lensing data
• KiDS-i-800: Comparing weak gravitational lensing measurements in same-sky surveys
• Background sky obscuration by cluster galaxies as a source of systematic error for weak lensing
• KiDS-450: Enhancing cosmic shear with clipping transformations
• Cosmic Shear as a Probe of Galaxy Formation Physics
• Inference from the small scales of cosmic shear with current and future Dark Energy Survey data
• Multi-wavelength scaling relations in galaxy groups: a detailed comparison of GAMA and KiDS observations to BAHAMAS simulations
• Galaxy-Galaxy Lensing in EAGLE: comparison with data from 180 square degrees of the KiDS and GAMA surveys
• The source-lens clustering effect in the context of lensing tomography and its self-calibration
• Enhancing the Cosmic Shear Power Spectrum
• LeMoMaF: Lensed Mock Map Facility
• Dark energy constraints and correlations with systematics from CFHTLS weak lensing, SNLS supernovae Ia and WMAP5

Cited by in corpus (60)

• Euclid. I. Overview of the Euclid mission
• KiDS-1000 Methodology: Modelling and inference for joint weak gravitational lensing and spectroscopic galaxy clustering analysis
• Cosmic Shear Cosmology Beyond 2-Point Statistics: A Combined Peak Count and Correlation Function Analysis of DES-Y1
• Painting with baryons: augmenting N-body simulations with gas using deep generative models
• Accurate cosmic shear errors: do we need ensembles of simulations?
• KiDS+2dFLenS+GAMA: Testing the cosmological model with the $E_{\mathrm{G}}$ statistic
• Studying galaxy troughs and ridges using Weak Gravitational Lensing with the Kilo-Degree Survey
• Cosmic Shear Covariance Matrix in $w$CDM: Cosmology Matters
• Euclid Preparation. XXVIII. Forecasts for ten different higher-order weak lensing statistics
• Mock galaxy shape catalogs in the Subaru Hyper Suprime-Cam Survey
• Persistent homology in cosmic shear: constraining parameters with topological data analysis
• ADDGALS: Simulated Sky Catalogs for Wide Field Galaxy Surveys
• Consistent cosmic shear in the face of systematics: a B-mode analysis of KiDS-450, DES-SV and CFHTLenS
• $\kappa$TNG: Effect of Baryonic Processes on Weak Lensing with IllustrisTNG Simulations
• Constraining cosmology with weak lensing voids
• Probing dark energy with tomographic weak-lensing aperture mass statistics
• CosmoGridV1: a simulated $w$CDM theory prediction for map-level cosmological inference
• KiDS-1000 cosmology: Combined second- and third-order shear statistics
• Testing gravity with galaxy-galaxy lensing and redshift-space distortions using CFHT-Stripe 82, CFHTLenS and BOSS CMASS datasets
• KiDS-1000 Cosmology: Constraints from density split statistics
• Non-Gaussianity in the Weak Lensing Correlation Function Likelihood -- Implications for Cosmological Parameter Biases
• KiDS-450: Enhancing cosmic shear with clipping transformations
• GLASS: Generator for Large Scale Structure
• A roadmap to cosmological parameter analysis with third-order shear statistics I: Modelling and validation
• Debiasing inference with approximate covariance matrices and other unidentified biases
• Covariance matrices for galaxy cluster weak lensing: from virial regime to uncorrelated large-scale structure
• A Bayesian method for combining theoretical and simulated covariance matrices for large-scale structure surveys
• It takes two to know one: Computing accurate one-point PDF covariances from effective two-point PDF models
• Impact of baryons in cosmic shear analyses with tomographic aperture mass statistics
• Enhancing cosmic shear with the multi-scale lensing PDF
• On cosmological bias due to the magnification of shear and position samples in modern weak lensing analyses
• Effects of Baryonic Feedback on the Cosmic Web
• A gravitational lensing detection of filamentary structures connecting luminous red galaxies
• Sufficiency of a Gaussian power spectrum likelihood for accurate cosmology from upcoming weak lensing surveys
• Cosmological forecasts with the clustering of weak lensing peaks
• Fast estimation of aperture mass statistics II: Detectability of higher order statistics in current and future surveys
• A roadmap to cosmological parameter analysis with third-order shear statistics III: Efficient estimation of third-order shear correlation functions and an application to the KiDS-1000 data
• Reducing the Impact of Weak-lensing Errors on Gravitational-wave Standard Sirens
• A revised density split statistic model for general filters
• An adapted filter function for density split statistics in weak lensing
• Euclid: Covariance of weak lensing pseudo-$C_{\ell }$ estimates. Calculation, comparison to simulations, and dependence on survey geometry
• KiDS-Legacy: Covariance validation and the unified OneCovariance framework for projected large-scale structure observables
• The impact of signal-to-noise, redshift, and angular range on the bias of weak lensing 2-point functions
• On constraining Cosmology and the Halo Mass Function with Weak Gravitational Lensing
• Stage IV baryonic feedback correction for non-Gaussianity inference
• Starlet higher order statistics for galaxy clustering and weak lensing
• A rising tide: Intrinsic alignments since the turn of the millennium
• Interpreting the HI 21-cm cosmology maps through Largest Cluster Statistics -- I: Impact of the synthetic SKA1-Low observations
• Pure-mode correlation functions for cosmic shear and application to KiDS-1000
• Impact of weak lensing on bright standard siren analyses
• DESI Mock Challenge: Constructing DESI galaxy catalogues based on FastPM simulations
• Joint inference of multiplicative and additive systematics in galaxy density fluctuations and clustering measurements
• Neural style transfer of weak lensing mass maps
• GalaxyGenius: Mock galaxy image generator for various telescopes from hydrodynamical simulations
• Cosmological parameters from the joint analysis of Density Split and Second Order Statistics: an Emulator based on the Halo Occupation Distribution
• Impact of weak-lensing mass-mapping algorithms on cosmology inference
• Cosmic shear beyond 2-point statistics: Accounting for galaxy intrinsic alignment with projected tidal fields
• Non-linear infusion of intrinsic alignment and source clustering: impact on non-Gaussian cosmic shear statistics
• Replicating weak-lensing summary-statistic covariances with normalizing flows
• Generative modeling of convergence maps based on predicted one-point statistics