DES Y3 + KiDS-1000: Consistent cosmology combining cosmic shear surveys

Abstract

We present a joint cosmic shear analysis of the Dark Energy Survey (DES Y3) and the Kilo-Degree Survey (KiDS-1000) in a collaborative effort between the two survey teams. We find consistent cosmological parameter constraints between DES Y3 and KiDS-1000 which, when combined in a joint-survey analysis, constrain the parameter $S_8={\sigma }_8\sqrt{{\Omega }_{\mathrm{m}}/0.3}$ with a mean value of $0.790_{-0.014}^{+0.018}$. The mean marginal is lower than the maximum a posteriori estimate, $S_8=0.801$, owing to skewness in the marginal distribution and projection effects in the multi-dimensional parameter space. Our results are consistent with $S_8$ constraints from observations of the cosmic microwave background by Planck, with agreement at the $1.7\sigma$ level. We use a Hybrid analysis pipeline, defined from a mock survey study quantifying the impact of the different analysis choices originally adopted by each survey team. We review intrinsic alignment models, baryon feedback mitigation strategies, priors, samplers and models of the non-linear matter power spectrum.

arXiv comment40 pages, 21 figures, 15 tables, accepted Open Journal of Astrophysics. Download the chains from https://des.ncsa.illinois.edu/releases/y3a2/Y3key-joint-des-kids or create your own chains with CosmoSIS using https://github.com/joezuntz/cosmosis-standard-library/blob/main/examples/des-y3_and_kids-1000.ini Watch the core team discuss this analysis at https://cosmologytalks.com/2023/05/26/des-kids

References in corpus (141)

• Efficient Computation of CMB anisotropies in closed FRW models
• MultiNest: an efficient and robust Bayesian inference tool for cosmology and particle physics
• Weak Gravitational Lensing
• Stable clustering, the halo model and nonlinear cosmological power spectra
• Dark Energy Survey Year 3 Results: Cosmological Constraints from Galaxy Clustering and Weak Lensing
• Bayesian photometric redshift estimation
• Revising the Halofit Model for the Nonlinear Matter Power Spectrum
• CFHTLenS: The Canada-France-Hawaii Telescope Lensing Survey
• CFHTLenS tomographic weak lensing cosmological parameter constraints: Mitigating the impact of intrinsic galaxy alignments
• Detection of weak gravitational lensing distortions of distant galaxies by cosmic dark matter at large scales
• Intrinsic alignment-lensing interference as a contaminant of cosmic shear
• Detection of Weak Gravitational Lensing by Large-scale Structure
• PolyChord: nested sampling for cosmology
• The Shear TEsting Programme 1: Weak lensing analysis of simulated ground-based observations
• The BAHAMAS project: Calibrated hydrodynamical simulations for large-scale structure cosmology
• The Dark Energy Survey Data Release 1
• Dark energy constraints from cosmic shear power spectra: impact of intrinsic alignments on photometric redshift requirements
• The effects of galaxy formation on the matter power spectrum: A challenge for precision cosmology
• Dark Energy Survey Year 3 Results: Cosmology from Cosmic Shear and Robustness to Data Calibration
• Bayesian Galaxy Shape Measurement for Weak Lensing Surveys - III. Application to the Canada-France-Hawaii Telescope Lensing Survey
• Extended Limber Approximation
• Gravitational Lensing Analysis of the Kilo Degree Survey
• An accurate halo model for fitting non-linear cosmological power spectra and baryonic feedback models
• Dark Energy Survey Year 3 Results: Cosmology from Cosmic Shear and Robustness to Modeling Uncertainty
• Towards a realistic population of simulated galaxy groups and clusters
• Massive Neutrinos and the Non-linear Matter Power Spectrum
• HMcode-2020: Improved modelling of non-linear cosmological power spectra with baryonic feedback
• The Skewness of the Aperture Mass Statistic
• Quantifying the effect of baryon physics on weak lensing tomography
• Cosmological Model Predictions for Weak Lensing: Linear and Nonlinear Regimes
• Intrinsic galaxy alignments from the 2SLAQ and SDSS surveys: luminosity and redshift scalings and implications for weak lensing surveys
• Galaxy alignments: An overview
• Detection of large scale intrinsic ellipticity-density correlation from the Sloan Digital Sky Survey and implications for weak lensing surveys
• DESI Bright Galaxy Survey: Final Target Selection, Design, and Validation
• CFHTLenS revisited: assessing concordance with Planck including astrophysical systematics
• PHAT: PHoto-z Accuracy Testing
• Accurate halo-model matter power spectra with dark energy, massive neutrinos and modified gravitational forces
• Neutrino masses and mixings: Status of known and unknown $3\nu$ parameters
• Fast estimation of polarization power spectra using correlation functions
• Analysis of two-point statistics of cosmic shear: I. Estimators and covariances
• Concordance and Discordance in Cosmology
• Beyond linear galaxy alignments
• Dark Energy Survey Year 3 Results: Photometric Data Set for Cosmology
• Cosmological Constraints From the 100 Square Degree Weak Lensing Survey
• The DES Science Verification Weak Lensing Shear Catalogues
• Euclid preparation: II. The EuclidEmulator -- A tool to compute the cosmology dependence of the nonlinear matter power spectrum
• Potential sources of contamination to weak lensing measurements: constraints from N-body simulations
• Dark Energy Survey Year 3 Results: Weak Lensing Shape Catalogue
• COSMOPOWER: emulating cosmological power spectra for accelerated Bayesian inference from next-generation surveys
• A non-linear solution to the $S_8$ tension?
• Dark Energy Survey Year 3 Results: Redshift Calibration of the Weak Lensing Source Galaxies
• Exploring the effects of galaxy formation on matter clustering through a library of simulation power spectra
• Improving lognormal models for cosmological fields
• GREAT3 results I: systematic errors in shear estimation and the impact of real galaxy morphology
• Euclid preparation: IX. EuclidEmulator2 -- Power spectrum emulation with massive neutrinos and self-consistent dark energy perturbations
• Galaxy alignments: Theory, modelling and simulations
• The WiggleZ Dark Energy Survey: Direct constraints on blue galaxy intrinsic alignments at intermediate redshifts
• Image Analysis for Cosmology: Results from the GREAT10 Galaxy Challenge
• Noise bias in weak lensing shape measurements
• Baryons and weak lensing power spectra
• Calibration of weak-lensing shear in the Kilo-Degree Survey
• Precision calculations of the cosmic shear power spectrum projection
• Cluster Cepheids with High Precision Gaia Parallaxes, Low Zeropoint Uncertainties, and Hubble Space Telescope Photometry
• PSF calibration requirements for dark energy from cosmic shear
• Means of confusion: how pixel noise affects shear estimates for weak gravitational lensing
• KiDS-1000 Cosmology: constraints beyond flat $\Lambda$CDM
• The Atacama Cosmology Telescope: Modeling the Gas Thermodynamics in BOSS CMASS galaxies from Kinematic and Thermal Sunyaev-Zel'dovich Measurements
• A Detailed Description of the CamSpec Likelihood Pipeline and a Reanalysis of the Planck High Frequency Maps
• DES Y3 results: Blending shear and redshift biases in image simulations
• COSEBIs: Extracting the full E-/B-mode information from cosmic shear correlation functions
• Metacalibration: Direct Self-Calibration of Biases in Shear Measurement
• KiDS+VIKING-450: A new combined optical & near-IR dataset for cosmology and astrophysics
• Euclid preparation: X. The Euclid photometric-redshift challenge
• Baryons, Neutrinos, Feedback and Weak Gravitational Lensing
• The halo model as a versatile tool to predict intrinsic alignments
• Phenotypic redshifts with self-organizing maps: A novel method to characterize redshift distributions of source galaxies for weak lensing
• The Deep Lens Survey
• Dark Energy Survey Year 3 Results: Covariance Modelling and its Impact on Parameter Estimation and Quality of Fit
• No galaxy left behind: accurate measurements with the faintest objects in the Dark Energy Survey
• Survey geometry and the internal consistency of recent cosmic shear measurements
• Dark Energy Survey Year 1 Results: Constraints on Intrinsic Alignments and their Colour Dependence from Galaxy Clustering and Weak Lensing
• Consistent lensing and clustering in a low-$S_8$ Universe with BOSS, DES Year 3, HSC Year 1 and KiDS-1000
• 2D-FFTLog: Efficient computation of real space covariance matrices for galaxy clustering and weak lensing
• Constraints on Cosmological Parameters from the 500 deg${}^2$ SPTpol Lensing Power Spectrum
• The growth of density perturbations in the last $\sim$10 billion years from tomographic large-scale structure data
• Joint constraints on cosmology and the impact of baryon feedback: combining KiDS-1000 lensing with the thermal Sunyaev-Zeldovich effect from Planck and ACT
• The three-year shear catalog of the Subaru Hyper Suprime-Cam SSP Survey
• Assessing tension metrics with Dark Energy Survey and Planck data
• Dark Energy Survey Year 3 Results: Point-Spread Function Modeling
• Dark Energy Survey Year 3 Results: Clustering Redshifts -- Calibration of the Weak Lensing Source Redshift Distributions with redMaGiC and BOSS/eBOSS
• Quantifying dimensionality: Bayesian cosmological model complexities
• Evaluation of probabilistic photometric redshift estimation approaches for The Rubin Observatory Legacy Survey of Space and Time (LSST)
• The MillenniumTNG Project: High-precision predictions for matter clustering and halo statistics
• Dark Energy Survey Year 3 results: cosmological constraints from the analysis of cosmic shear in harmonic space
• DES Y3 cosmic shear down to small scales: constraints on cosmology and baryons
• A Measurement of the Galaxy Group-Thermal Sunyaev-Zel'dovich Effect Cross-Correlation Function
• Dark Energy Survey Year 3 Results: Measuring the Survey Transfer Function with Balrog
• Intrinsic alignments of BOSS LOWZ galaxies II: Impact of shape measurement methods
• KiDS-1000: cosmic shear with enhanced redshift calibration
• Non-Gaussian estimates of tensions in cosmological parameters
• Tomographic measurement of the intergalactic gas pressure through galaxy-tSZ cross-correlations
• Statistical Inconsistencies in the KiDS-450 Dataset
• Quantifying concordance of correlated cosmological data sets
• A Unified Analysis of Four Cosmic Shear Surveys
• Constraining baryonic feedback and cosmology with weak-lensing, X-ray, and kinematic Sunyaev-Zeldovich observations
• Dark Energy Survey Year 1 Results: Constraining Baryonic Physics in the Universe
• The Dark Energy Survey Year 3 and eBOSS: constraining galaxy intrinsic alignments across luminosity and colour space
• Constraints on the redshift evolution of astrophysical feedback with Sunyaev-Zeldovich effect cross-correlations
• Dark Energy Survey Year 3 Results: Exploiting small-scale information with lensing shear ratios
• KiDS & Euclid: Cosmological implications of a pseudo angular power spectrum analysis of KiDS-1000 cosmic shear tomography
• Blinding multi-probe cosmological experiments
• Dark Energy Survey Year 3 Results: Multi-Probe Modeling Strategy and Validation
• Constraining the Baryonic Feedback with Cosmic Shear Using the DES Year-3 Small-Scale Measurements
• Testing Gravity on Cosmic Scales: A Case Study of Jordan-Brans-Dicke Theory
• Limitations of model fitting methods for lensing shear estimation
• Robust sampling for weak lensing and clustering analyses with the Dark Energy Survey
• Aemulus $\nu$: Precise Predictions for Matter and Biased Tracer Power Spectra in the Presence of Neutrinos
• Cosmology with 6 parameters in the Stage-IV era: efficient marginalisation over nuisance parameters
• KiDS-Legacy calibration: unifying shear and redshift calibration with the SKiLLS multi-band image simulations
• Validating a minimal galaxy bias method for cosmological parameter inference using HSC-SDSS mock catalogs
• Dark Energy Survey internal consistency tests of the joint cosmological probes analysis with posterior predictive distributions
• The MillenniumTNG Project: Intrinsic alignments of galaxies and halos
• Dark Energy Survey Year 3 results: Marginalisation over redshift distribution uncertainties using ranking of discrete realisations
• KiDS-i-800: Comparing weak gravitational lensing measurements in same-sky surveys
• Inferring the impact of feedback on the matter distribution using the Sunyaev Zel'dovich effect: Insights from CAMELS simulations and ACT+DES data
• Probing galaxy bias and intergalactic gas pressure with KiDS Galaxies-tSZ-CMB lensing cross-correlations
• Cross-correlation of DES Y3 lensing and ACT/$Planck$ thermal Sunyaev Zel'dovich Effect I: Measurements, systematics tests, and feedback model constraints
• Euclid: Modelling massive neutrinos in cosmology -- a code comparison
• A Bayesian quantification of consistency in correlated datasets
• A Unified Catalog-level Reanalysis of Stage-III Cosmic Shear Surveys
• Modeling Intrinsic Galaxy Alignment in the MICE Simulation
• The Subaru FMOS galaxy redshift survey (FastSound). V. Intrinsic alignments of emission line galaxies at $z\sim 1.4$
• Redshift requirements for cosmic shear with intrinsic alignment
• Hyper Suprime-Cam Year 3 Results: Cosmology from Cosmic Shear Two-point Correlation Functions
• Self-calibration and robust propagation of photometric redshift distribution uncertainties in weak gravitational lensing
• Mapping gas around massive galaxies: cross-correlation of DES Y3 galaxies and Compton-$y$-maps from SPT and Planck
• Analytical marginalisation over photometric redshift uncertainties in cosmic shear analyses
• An empirical approach to model selection: weak lensing and intrinsic alignments
• A Systematic Study of Projection Biases in Weak Lensing Analysis
• E/B mode decomposition of HSC-Y1 cosmic shear using COSEBIs: cosmological constraints and comparison with other two-point statistics
• Pure-mode correlation functions for cosmic shear and application to KiDS-1000

Cited by in corpus (81)

• DESI 2024 VI: Cosmological Constraints from the Measurements of Baryon Acoustic Oscillations
• The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
• DESI 2024 VII: Cosmological Constraints from the Full-Shape Modeling of Clustering Measurements
• Robust Preference for Dynamical Dark Energy in DESI BAO and SN Measurements
• Hints of Nonminimally Coupled Gravity in DESI 2024 Baryon Acoustic Oscillation Measurements
• Omnipotent dark energy: A phenomenological answer to the Hubble tension
• SPT-3G D1: CMB temperature and polarization power spectra and cosmology from 2019 and 2020 observations of the SPT-3G Main field
• Quantifying the $S_8$ tension and evidence for interacting dark energy from redshift-space distortion measurements
• A double take on early and interacting dark energy from JWST
• Multidimensionality of the Hubble tension: the roles of ${\Omega }_m$ and ${\omega }_c$
• How much information can be extracted from galaxy clustering at the field level?
• $\Lambda$CDM Tensions: Localising Missing Physics through Consistency Checks
• The Atacama Cosmology Telescope: Cosmology from cross-correlations of unWISE galaxies and ACT DR6 CMB lensing
• Cosmic shear with small scales: DES-Y3, KiDS-1000 and HSC-DR1
• Sign Switching in Dark Sector Coupling Interactions as a Candidate for Resolving Cosmological Tensions
• The Atacama Cosmology Telescope DR6 and DESI: Structure formation over cosmic time with a measurement of the cross-correlation of CMB Lensing and Luminous Red Galaxies
• Cosmological constraints on ${\Lambda }_{\mathrm{s}}$CDM scenario in a type II minimally modified gravity
• Probing Early Modification of Gravity with Planck, ACT and SPT
• Interacting Dark Sectors in light of DESI DR2
• The weak, the strong and the ugly -- A comparative analysis of interacting stepped dark radiation
• Cosmological constraints on early dark energy from the full shape analysis of eBOSS DR16
• Cosmological constraints from the cross-correlation of DESI Luminous Red Galaxies with CMB lensing from Planck PR4 and ACT DR6
• Dark matter solution to the $H_0$ and $S_8$ tensions, and the integrated Sachs-Wolfe void anomaly
• Modified recombination and the Hubble tension
• $\Lambda$CDM is alive and well
• HYMALAIA: A Hybrid Lagrangian Model for Intrinsic Alignments
• Non-Linear Matter Power Spectrum Modeling in Interacting Dark Energy Cosmologies
• Planck-PR4 anisotropy spectra show (better) consistency with General Relativity
• Cosmological constraints from weak lensing scattering transform using HSC Y1 data
• A comparison between axion-like and power law potentials in cosmological background
• Neutrino mass tension or suppressed growth rate of matter perturbations?
• On dataset tensions and signatures of new cosmological physics
• Hints of Neutrino Dark Matter scattering in the CMB? Constraints from the Marginalized and Profile Distributions
• A multitracer analysis for the eBOSS galaxy sample based on the effective field theory of large-scale structure
• A visual tool for assessing tension-resolving models in the $H_0$-${\sigma }_8$ plane
• Dark Degeneracy in DESI DR2: Interacting or Evolving Dark Energy?
• Linear matter density perturbations in the ${\Lambda }_{\mathrm{s}}$CDM model: Examining growth dynamics and addressing the $S_8$ tension
• Dark Energy Survey Year 3: Blue Shear
• Comprehensive Constraints on Dark Radiation Injection After BBN
• Do we need wavelets in the late Universe?
• Scaling solutions as Early Dark Energy resolutions to the Hubble tension
• Cosmological feedback from a halo assembly perspective
• Cosmological implications of tracker scalar fields: Testing the evidence for dynamical dark energy with recent data
• General parametrization for energy density of quintessence field
• ${\Lambda }_{\mathrm{s}}$CDM cosmology from a type-II minimally modified gravity
• A representation learning approach to probe for dynamical dark energy in matter power spectra
• Bounds on Velocity-Dependent Dark Matter-Baryon Scattering from Large-Scale Structure
• Interacting dark energy constraints from the full-shape analyses of BOSS DR12 and DES Year 3 measurements
• Cosmology from Planck CMB Lensing and DESI DR1 Quasar Tomography
• Probing interacting dark sector models with future weak lensing-informed galaxy cluster abundance constraints from SPT-3G and CMB-S4
• Imprint of massive neutrinos on Persistent Homology of large-scale structure
• Empirical Validation: Investigating the ${\Lambda }_s$CDM Model with new DESI BAO Observations
• Map-level baryonification: unified treatment of weak lensing two-point and higher-order statistics
• Weak lensing of strong lensing: beyond the tidal regime
• Mitigating baryon feedback bias in cosmic shear through a theoretical error covariance in the matter power spectrum
• Is ${\omega }_0{\omega }_a$CDM a good model for the clumpy Universe?
• A rising tide: Intrinsic alignments since the turn of the millennium
• What Prevents Resolving the Hubble Tension through Late-Time Expansion Modifications?
• The FLAMINGO project: cosmology with the redshift dependence of weak gravitational lensing peaks
• Inflation in non-local hybrid metric-Palatini gravity
• B-modes from galaxy cluster alignments in future surveys
• Special Issue on Modified Gravity Approaches to the Tensions of $\Lambda$CDM: Goals and Highlights
• Improved Weak Lensing Photometric Redshift Calibration via StratLearn and Hierarchical Modeling
• Calibrating baryonic effects in cosmic shear with external data in the LSST era
• Measuring neutrino mass and asymmetry with matter pairwise velocities
• The Velocity Field Olympics: Assessing velocity field reconstructions with direct distance tracers
• $\Lambda$CDM and early dark energy in latent space: a data-driven parametrization of the CMB temperature power spectrum
• A frequentist view on the two-body decaying dark matter model
• Kinematic Lensing Inference II: Cluster Lensing with $\mathcal{O}$(1) Galaxies
• A systematic study of projection biases in the Weak Lensing analysis of cosmic shear and the combination of galaxy clustering and galaxy-galaxy lensing
• Nonlinear Matter Power Spectrum from relativistic $N$-body Simulations: ${\Lambda }_{\mathrm{s}}$CDM versus $\Lambda$CDM
• Probing baryonic feedback with fast radio bursts: joint analyses with cosmic shear and galaxy clustering
• Cosmological measurements from the CMB and BAO are insensitive to the tail probability in the assumed likelihood
• Revisiting Galaxy Cluster Scaling Relations through Dark Matter-Gas Coherence: Scatter Dependence on Dynamical State
• Dark sector interactions in light of weak lensing data
• Cosmic magnification on high-redshift submillimeter galaxies
• Probing gravity with non-linear clustering in redshift space
• $S_8$ from peculiar velocities: agreement with Planck for Tully--Fisher and supernovae, tension for the fundamental plane
• Non-linear infusion of intrinsic alignment and source clustering: impact on non-Gaussian cosmic shear statistics
• Calibrating Bayesian Tension Statistics using Neural Ratio Estimation
• Kinematic reconstruction of torsion as dark energy in Friedmann cosmology