Dark Energy Survey Year 1 Results: Cosmological Constraints from Cosmic Shear

Abstract

We use 26 million galaxies from the Dark Energy Survey (DES) Year 1 shape catalogs over 1321 deg${}^2$ of the sky to produce the most significant measurement of cosmic shear in a galaxy survey to date. We constrain cosmological parameters in both the flat $\Lambda$CDM and $w$CDM models, while also varying the neutrino mass density. These results are shown to be robust using two independent shape catalogs, two independent \photoz\ calibration methods, and two independent analysis pipelines in a blind analysis. We find a 3.5\% fractional uncertainty on ${\sigma }_8({\Omega }_m/0.3{)}^{0.5}=0.782_{-0.027}^{+0.027}$ at 68\% CL, which is a factor of 2.5 improvement over the fractional constraining power of our DES Science Verification results. In $w$CDM, we find a 4.8\% fractional uncertainty on ${\sigma }_8({\Omega }_m/0.3{)}^{0.5}=0.777_{-0.038}^{+0.036}$ and a dark energy equation-of-state $w=-0.95_{-0.39}^{+0.33}$. We find results that are consistent with previous cosmic shear constraints in ${\sigma }_8$ -- ${\Omega }_m$, and see no evidence for disagreement of our weak lensing data with data from the CMB. Finally, we find no evidence preferring a $w$CDM model allowing $w\ne -1$. We expect further significant improvements with subsequent years of DES data, which will more than triple the sky coverage of our shape catalogs and double the effective integrated exposure time per galaxy.

arXiv comment32 pages, 19 figures; matches PRD referee response version

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• KaRMMa -- Kappa Reconstruction for Mass Mapping
• Probing Cosmology and Cluster Astrophysics with Multi-Wavelength Surveys I. Correlation Statistics
• Redshift requirements for cosmic shear with intrinsic alignment
• Cosmological lensing ratios with DES Y1, SPT and Planck
• Cosmological Constraints from Galaxy Cluster Sparsity, Cluster Gas Mass Fraction and Baryon Acoustic Oscillations Data
• A note on interacting holographic dark energy with a Hubble-scale cutoff
• Baryonic effects on CMB lensing and neutrino mass constraints
• Impact of baryons in cosmic shear analyses with tomographic aperture mass statistics
• On the degeneracy between baryon feedback and massive neutrinos as probed by matter clustering and weak lensing
• Enhancing cosmic shear with the multi-scale lensing PDF
• Planck-PR4 anisotropy spectra show (better) consistency with General Relativity
• Cosmology with the sub-millimetre galaxies magnification bias: Tomographic Analysis
• Addressing Astrophysical and Cosmological Problems With Secretly Asymmetric Dark Matter
• Testing a quintessence model with Yukawa interaction from cosmological observations and N-body simulations
• Cosmological Studies from HSC-SSP Tomographic Weak Lensing Peak Abundances
• Photometric Redshift Uncertainties in Weak Gravitational Lensing Shear Analysis: Models and Marginalization
• An Analytic Hybrid Halo + Perturbation Theory Model for Small-scale Correlators: Baryons, Halos, and Galaxies
• Alleviating the Hubble-constant tension and the growth tension via a transition of absolute magnitude favored by the Pantheon+ sample
• Reconciling $S_8$: Insights from Interacting Dark Sectors
• Observational Constraints on Growth Index with Cosmography
• Cosmology from weak lensing alone and implications for the Hubble tension
• Higher order statistics of shear field: a machine learning approach
• New scaling solutions in cubic Horndeski theories
• Mitigating the effects of undersampling in weak lensing shear estimation with metacalibration
• Accounting for object detection bias in weak gravitational lensing studies
• Bayesian photometric redshifts of blended sources
• Robust Evidence for Dynamical Dark Energy from DESI Galaxy-CMB Lensing Cross-Correlation and Geometric Probes
• The effects of varying depth in cosmic shear surveys
• Observable Predictions for Massive-Neutrino Cosmologies with Model-Independent Dark Energy
• Cosmological constraints with the sub-millimetre galaxies Magnification Bias after large scale bias corrections
• Cosmic expansion with matter creation and bulk viscosity
• Sufficiency of a Gaussian power spectrum likelihood for accurate cosmology from upcoming weak lensing surveys
• Towards a full $w$CDM map-based analysis for weak lensing surveys
• Evolution mapping: a new approach to describe matter clustering in the non-linear regime
• Model-independent cosmological inference after the DESI DR2 data with improved inverse distance ladder
• Covariances for cosmic shear and galaxy-galaxy lensing in the response approach
• Fast estimation of aperture mass statistics II: Detectability of higher order statistics in current and future surveys
• Analytical marginalisation over photometric redshift uncertainties in cosmic shear analyses
• Cosmological forecasts with the clustering of weak lensing peaks
• Addressing Cosmological Tensions by Non-Local Gravity
• A new estimator for gravitational lensing using galaxy and intensity mapping surveys
• The SRG-eROSITA All-Sky Survey : Constraints on f(R) Gravity from Cluster Abundance
• No Slip CMB
• Differentiating dark interactions with perturbation
• Towards a Bias-Free Selection Function in Shear Measurement
• Cosmological Probes of Structure Growth and Tests of Gravity
• SuperCLASS -- III. Weak lensing from radio and optical observations in Data Release 1
• Cosmology with the submillimetre galaxies magnification bias: Proof of concept
• Exploring Mirror Twin Higgs Cosmology with Present and Future Weak Lensing Surveys
• Toward a simultaneous resolution of the $H_0$ and $S_8$ tensions: early dark energy and an interacting dark sector model
• A General Framework for Removing Point Spread Function Additive Systematics in Cosmological Weak Lensing Analysis
• 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
• Transitioning from Stage-III to Stage-IV: Cosmology from galaxy$\times$CMB lensing and shear$\times$CMB lensing
• Hints of Neutrino Dark Matter scattering in the CMB? Constraints from the Marginalized and Profile Distributions
• The importance of secondary halos for strong lensing in massive galaxy clusters across redshift
• Rainbow Cosmic Shear: Optimisation of Tomographic Bins
• Forecast Analysis on Interacting Dark Energy Models from Future Generation PICO and DESI Missions
• Clustering of red-sequence galaxies in the fourth data release ofthe Kilo-Degree Survey
• Modified Gravity Away from a $\Lambda$CDM Background
• Cosmological evolution of viable models in the generalized scalar-tensor theory
• Photometric redshifts and intrinsic alignments: degeneracies and biases in 3$\times$2pt analysis
• Flow-Based Likelihoods for Non-Gaussian Inference
• The Integrated Sachs-Wolfe Effect in Interacting Dark Matter-Dark Energy Models
• Tomographic Constraints on Gravity from Angular Redshift Fluctuations in the Late Universe
• Using machine learning to compress the matter transfer function $T(k)$
• Simulating image coaddition with the Nancy Grace Roman Space Telescope: I. Simulation methodology and general results
• Unphysical properties in a class of interacting dark energy models
• Cosmological constraints using Minkowski functionals from the first year data of the Hyper Suprime-Cam
• The observable $E_g$ statistics
• Constraints on Dark Energy Models Using Late Universe Probes
• Separating the Intrinsic Alignment Signal and the Lensing Signal using Self-Calibration in Photo-z Surveys with KiDS450 and KV450 Data
• Baryonic feedback measurement from KV450 cosmic shear analysis
• Self-calibration method for II and GI types of intrinsic alignments of galaxies
• DE models with combined $H_0\cdot r_d$ from BAO and CMB dataset and friends
• Dark sector evolution in Horndeski models
• Early dark energy constraints with late-time expansion marginalization
• Some Recent Results on Ricci-Based Gravity Theories
• Searching for eV-mass Axion-like Particles with Cross Correlations between Line Intensity and Weak Lensing Maps
• Forecasts of cosmological constraints from HI intensity mapping with FAST, BINGO & SKA-I
• Accuracy requirements on intrinsic alignments for Stage-IV cosmic shear
• A fully data-driven algorithm for accurate shear estimation
• Axial Anomaly in Galaxies and the Dark Universe
• Qualitative description of the universe in the interacting fluids scheme
• Band-limited Features in the Primordial Power Spectrum Do Not Resolve the Hubble Tension
• Quantum yield and charge diffusion in the Nancy Grace Roman Space Telescope infrared detectors
• When galaxies align: intrinsic alignments of the progenitors of elliptical galaxies in the Horizon-AGN simulation
• Testing the Impact of Satellite Anisotropy on Large and Small Scale Intrinsic Alignments using Hydrodynamical Simulations
• Dark Energy Survey Year 3: Blue Shear
• A study on Cubic Galileon Gravity Using N-body Simulations
• LimberJack.jl: auto-differentiable methods for angular power spectra analyses
• Early-time thermalization of cosmic components? A hint for solving cosmic tensions
• KiDS+VIKING-450: An internal-consistency test for cosmic shear tomography with a colour-based split of source galaxies
• Weak-lensing Mass Reconstruction of Galaxy Clusters with Convolutional Neural Network
• Impact of baryonic feedback on HSC Y1 weak lensing non-Gaussian statistics
• Weak Lensing of Type Ia Supernovae from the Dark Energy Survey
• Constraining the physics of star formation from CIB-cosmic shear cross-correlations
• Tightening weak lensing constraints on the ellipticity of galaxy-scale dark matter haloes
• Constraining $f(R)$ Gravity with a $k$-cut Cosmic Shear Analysis of the Hyper Suprime-Cam First-Year Data
• Avoiding the Geometric Boundary Effect in Shear Measurement
• On the primordial origin of the smoothing excess in the $Planck$ temperature power spectrum in light of LSS data
• Box Replication Effects in Weak Lensing Light-cone Construction
• Interpreting Internal Consistency of DES Measurements
• KiDS-Legacy: Covariance validation and the unified OneCovariance framework for projected large-scale structure observables
• Thermodynamic Constraints on the Dark Sector
• Machine learning unveils the linear matter power spectrum of modified gravity
• Mitigating the Noise-Source Coupling Effect in Shear Measurement
• Combining strong and weak lensing estimates in the Cosmos field
• Fast estimation of aperture-mass statistics I: aperture mass variance and an application to the CFHTLenS data
• Dark Energy Survey Year 3 Results: Constraints on cosmological parameters and galaxy bias models from galaxy clustering and galaxy-galaxy lensing using the redMaGiC sample
• Black hole remnants are not too fast to be dark matter
• Dark Energy Survey Year 1: An independent E/B-mode cosmic shear analysis
• Detecting Low-Mass Perturbers in Cluster Lenses using Curved Arc Bases
• Euclid preparation. LII. Forecast impact of super-sample covariance on 3x2pt analysis with Euclid
• Small-scale clumping of dark matter and the mean free path of ionizing photons at $z=6$
• Stress testing the dark energy equation of state imprint on supernova data
• First detection of the GI-type of intrinsic alignments of galaxies using the self-calibration method in a photometric galaxy survey
• Growth and Geometry Split in Light of the DES-Y3 Survey
• Cosmological gravity on all scales III: non-linear matter power spectrum in phenomenological modified gravity
• Deflection and gravitational lensing with finite distance effect in the strong deflection limit in stationary and axisymmetric spacetimes
• The Weak Lensing Peak Statistics in the Mocks by the inverse-Gaussianization Method
• Magnification bias in the shear-ratio test: a viable mitigation strategy
• A Systematic Study of Projection Biases in Weak Lensing Analysis
• Optimising LSST Observing Strategy for Weak Lensing Systematics
• Turbulence-induced deviation between baryonic field and dark matter field in the spatial distribution of the Universe
• E/B mode decomposition of HSC-Y1 cosmic shear using COSEBIs: cosmological constraints and comparison with other two-point statistics
• A rising tide: Intrinsic alignments since the turn of the millennium
• Can Baby Universe Absorption Explain Dark Energy?
• Traversable wormholes in bi-metric gravity
• Dark energy-dark matter interactions as a solution to the $S_8$ tension
• Stage IV baryonic feedback correction for non-Gaussianity inference
• Effects of Redshift Uncertainty on Cross-Correlations of CMB Lensing and Galaxy Surveys
• SuperCLASS -- I. The Super CLuster Assisted Shear Survey: Project overview and Data Release 1
• Non-parametric Cosmology with Cosmic Shear
• Combining cosmic shear data with correlated photo-$z$ uncertainties: constraints from DESY1 and HSC-DR1
• The Impact of Photometric Redshift Errors on Lensing Statistics in Ray-Tracing Simulations
• One-loop power spectrum corrections in interacting dark energy cosmologies
• A Forecast for Large Scale Structure Constraints on Horndeski Gravity with Line Intensity Mapping
• Does nonlocal gravity yield divergent gravitational energy-momentum fluxes?
• The Seventeenth Data Release of the Sloan Digital Sky Surveys: Complete Release of MaNGA, MaStar and APOGEE-2 Data
• Radio-Optical Galaxy Shape and Shear Correlations in the COSMOS Field using 3 GHz VLA Observations
• Ray-tracing log-normal simulation for weak gravitational lensing: application to the cross-correlation with galaxies
• Dark Matter Substructure or Source Model Systematics? A Case Study of Cluster Lens Abell S1063
• The matter fluctuation amplitude inferred from the weak lensing power spectrum and correlation function in CFHTLenS data
• Probing Long-Range Forces Between Neutrinos with Cosmic Structures
• The Impact of Light Polarization Effects on Weak Lensing Systematics
• Accurate Kappa Reconstruction Algorithm for masked shear catalog (AKRA)
• Quasi-2D Weak Lensing Cosmological Constraints Using the PDF-SYM method
• Improved Weak Lensing Photometric Redshift Calibration via StratLearn and Hierarchical Modeling
• Assessing theoretical uncertainties for cosmological constraints from weak lensing surveys
• Scale and redshift dependent limits on cosmic neutrino properties
• Data Compression and Covariance Matrix Inspection: Cosmic Shear
• AKRA 2.0: Accurate Kappa Reconstruction Algorithm for masked shear catalog
• Implications of Dynamical Dark Energy in the expansion of the Universe and the Structure Formation
• Cosmological Zoom-In Simulations of Milky Way Host Mass Dark Matter Halos with a Blue-Tilted Primordial Power Spectrum
• Euclid: Photometric redshift calibration with self-organising maps
• Reconstructing the Gravitational Lensing Potential from the Lyman-$\alpha$ Forest
• Calibrating baryonic effects in cosmic shear with external data in the LSST era
• AMICO galaxy clusters in KiDS-1000: cosmological sample
• Star-Crossed Labours: Checking Consistency Between Current Supernovae Compilations
• Geometric Interpretations of the $k$-Nearest Neighbour Distributions
• Reconstruction of weak lensing mass maps for non-Gaussian studies in the celestial sphere
• Proca-stinated Cosmology II: Matter, Halo, and Lensing Statistics in the vector Galileon
• Interacting dark sector with quadratic coupling: theoretical and observational viability
• Measuring the gravitomagnetic distortion from rotating halos I: methods
• Kinetic recoupling of dark matter
• Effect of the field self-interaction of General Relativity on the Cosmic Microwave Background Anisotropies
• Weak lensing peak statistics -- steepness versus height
• Detecting Baryon Acoustic Oscillations in Dark Matter from Kinematic Weak Lensing Surveys
• Global 21 cm signal: a promising probe of primordial features
• FPFS Shear Estimator: Systematic Tests on the Hyper Suprime-Cam Survey First Year Data
• Common Origin of Warm Dark Matter and Dark Radiation
• The RSD Sorting Hat: Unmixing Radial Scales in Projection
• Optimizing Redshift Distribution Inference through Joint Self-Calibration and Clustering-Redshift Synergy
• Probing gravity with the DES-CMASS sample and BOSS spectroscopy
• Implications for the missing low-mass galaxies (satellites) problem from cosmic shear
• Dynamical Shortcomings in the Generalized SU(2) Proca Theory: Challenges for Cosmic Acceleration
• Galaxy-galaxy lensing with the DES-CMASS catalogue: measurement and constraints on the galaxy-matter cross-correlation
• The Case for Nonlocal Modifications of Gravity
• Euclid Preparation: XIV. The Complete Calibration of the Color-Redshift Relation (C3R2) Survey: Data Release 3
• Cosmological consequences of intrinsic alignments super-sample covariance
• Observational constraints on phenomenological emergent dark energy and barotropic dark matter characterized by a constant equation of state parameter
• Lensing Without Borders. I. A Blind Comparison of the Amplitude of Galaxy-Galaxy Lensing Between Independent Imaging Surveys
• Probing baryonic feedback with fast radio bursts: joint analyses with cosmic shear and galaxy clustering
• Galaxy Clustering in Harmonic Space from the Dark Energy Survey Year 1 Data: Compatibility with Real-Space Results
• Cosmic shear beyond 2-point statistics: Accounting for galaxy intrinsic alignment with projected tidal fields
• Cosmic Shear in Harmonic Space from the Dark Energy Survey Year 1 Data: Compatibility with Configuration Space Results
• Structure Formation with Dark Magnetohydrodynamics
• Dark Energy Survey Year 3 results: Cosmology with peaks using an emulator approach
• The impact of the locally measured Hubble parameter on the mass of Sterile neutrino
• Effect of dust in circumgalactic haloes on the cosmic shear power spectrum
• A Novel Framework for Modeling Weakly Lensing Shear Using Kinematics and Imaging at Moderate Redshift
• Forecasting the potential of weak lensing magnification to enhance LSST large-scale structure analyses
• Cosmology with the Roman Space Telescope -- Synergies with CMB lensing
• Impact of Point Spread Function Higher Moments Error on Weak Gravitational Lensing
• A Breathing Universe is Consistent
• The Covariance of Photometric and Spectroscopic Two-Point Statistics: Implications for Cosmological Parameter Inference
• The BINGO project X. Cosmological parameter constraints from HI Intensity Mapping lognormal simulations
• Probing Dark Matter with Strong Gravitational Lensing through an Effective Density Slope
• Cosmological constraints on sterile neutrino Dark Matter production mechanisms