Cosmology from Cross-Correlation of ACT-DR4 CMB Lensing and DES-Y3 Cosmic Shear

Abstract

Cross-correlation between weak lensing of the Cosmic Microwave Background (CMB) and weak lensing of galaxies offers a way to place robust constraints on cosmological and astrophysical parameters with reduced sensitivity to certain systematic effects affecting individual surveys. We measure the angular cross-power spectrum between the Atacama Cosmology Telescope (ACT) DR4 CMB lensing and the galaxy weak lensing measured by the Dark Energy Survey (DES) Y3 data. Our baseline analysis uses the CMB convergence map derived from ACT-DR4 and $\text{Planck}$ data, where most of the contamination due to the thermal Sunyaev Zel'dovich effect is removed, thus avoiding important systematics in the cross-correlation. In our modelling, we consider the nuisance parameters of the photometric uncertainty, multiplicative shear bias and intrinsic alignment of galaxies. The resulting cross-power spectrum has a signal-to-noise ratio $=7.1$ and passes a set of null tests. We use it to infer the amplitude of the fluctuations in the matter distribution ($S_8\equiv {\sigma }_8({\Omega }_{\mathrm{m}}/0.3{)}^{0.5}=0.782\pm 0.059$) with informative but well-motivated priors on the nuisance parameters. We also investigate the validity of these priors by significantly relaxing them and checking the consistency of the resulting posteriors, finding them consistent, albeit only with relatively weak constraints. This cross-correlation measurement will improve significantly with the new ACT-DR6 lensing map and form a key component of the joint 6x2pt analysis between DES and ACT.

arXiv comment26 pages, 30 figures (including appendices). Data associated with this article is available at https://github.com/itrharrison/actdr4kappa-x-desy3gamma-data

References in corpus (89)

• Maps of Dust IR Emission for Use in Estimation of Reddening and CMBR Foregrounds
• HEALPix -- a Framework for High Resolution Discretization, and Fast Analysis of Data Distributed on the Sphere
• Efficient Computation of CMB anisotropies in closed FRW models
• LSST: from Science Drivers to Reference Design and Anticipated Data Products
• Cosmological parameters from CMB and other data: a Monte-Carlo approach
• Stable clustering, the halo model and nonlinear cosmological power spectra
• The Simons Observatory: Science goals and forecasts
• Dark Energy Survey Year 1 Results: Cosmological Constraints from Galaxy Clustering and Weak Lensing
• Dark Energy Survey Year 3 Results: Cosmological Constraints from Galaxy Clustering and Weak Lensing
• Revising the Halofit Model for the Nonlinear Matter Power Spectrum
• The Dark Energy Camera
• Cosmology and Fundamental Physics with the Euclid Satellite
• Why your model parameter confidences might be too optimistic -- unbiased estimation of the inverse covariance matrix
• KiDS-1000 Cosmology: Cosmic shear constraints and comparison between two point statistics
• KiDS-1000 Cosmology: Multi-probe weak gravitational lensing and spectroscopic galaxy clustering constraints
• MASTER of the CMB Anisotropy Power Spectrum: A Fast Method for Statistical Analysis of Large and Complex CMB Data Sets
• Cobaya: Code for Bayesian Analysis of hierarchical physical models
• Mass Reconstruction with CMB Polarization
• The Atacama Cosmology Telescope: DR4 Maps and Cosmological Parameters
• Efficient sampling of fast and slow cosmological parameters
• CMB power spectrum parameter degeneracies in the era of precision cosmology
• The Shear TEsting Programme 1: Weak lensing analysis of simulated ground-based observations
• Dark energy constraints from cosmic shear power spectra: impact of intrinsic alignments on photometric redshift requirements
• Dark Energy Survey Year 3 Results: Cosmology from Cosmic Shear and Robustness to Data Calibration
• Extended Limber Approximation
• An accurate halo model for fitting non-linear cosmological power spectra and baryonic feedback models
• Systematic Errors in Future Weak Lensing Surveys: Requirements and Prospects for Self-Calibration
• A unified pseudo-$C_{\ell }$ framework
• Dark Energy Survey Year 3 Results: Cosmology from Cosmic Shear and Robustness to Modeling Uncertainty
• Statistical Analysis of Galaxy Surveys - I. Robust error estimation for 2-point clustering statistics
• The Dark Energy Survey Data Release 2
• Core Cosmology Library: Precision Cosmological Predictions for LSST
• Intrinsic galaxy alignments from the 2SLAQ and SDSS surveys: luminosity and redshift scalings and implications for weak lensing surveys
• The Intrinsic Alignment of Galaxies and its Impact on Weak Gravitational Lensing in an Era of Precision Cosmology
• The Atacama Cosmology Telescope: A Measurement of the Cosmic Microwave Background Power Spectra at 98 and 150 GHz
• Measurements of the E-Mode Polarization and Temperature-E-Mode Correlation of the CMB from SPT-3G 2018 Data
• Practical Weak Lensing Shear Measurement with Metacalibration
• Cosmic Microwave Weak lensing data as a test for the dark universe
• Dark Energy Survey Year 3 Results: Photometric Data Set for Cosmology
• Dark Energy Survey Year 3 Results: Weak Lensing Shape Catalogue
• A non-linear solution to the $S_8$ tension?
• Dark Energy Survey Year 3 Results: Redshift Calibration of the Weak Lensing Source Galaxies
• Improving lognormal models for cosmological fields
• Weak lensing analysis in three dimensions
• Extragalactic Foreground Contamination in Temperature-based CMB Lens Reconstruction
• CMB Lensing Power Spectrum Biases from Galaxies and Clusters using High-angular Resolution Temperature Maps
• DES Y3 results: Blending shear and redshift biases in image simulations
• Metacalibration: Direct Self-Calibration of Biases in Shear Measurement
• Cosmological constraints from unWISE and Planck CMB lensing tomography
• The Atacama Cosmology Telescope: A CMB lensing mass map over 2100 square degrees of sky and its cross-correlation with BOSS-CMASS galaxies
• The Atacama Cosmology Telescope: Component-separated maps of CMB temperature and the thermal Sunyaev-Zel'dovich effect
• Cosmic shear covariance: The log-normal approximation
• Dark Energy Survey Year 3 Results: Covariance Modelling and its Impact on Parameter Estimation and Quality of Fit
• Density split statistics: joint model of counts and lensing in cells
• KiDS+GAMA: Intrinsic alignment model constraints for current and future weak lensing cosmology
• Mitigating Foreground Biases in CMB Lensing Reconstruction Using Cleaned Gradients
• Dark Energy Survey Year 1 Results: Constraints on Intrinsic Alignments and their Colour Dependence from Galaxy Clustering and Weak Lensing
• An EFT description of galaxy intrinsic alignments
• Consistent lensing and clustering in a low-$S_8$ Universe with BOSS, DES Year 3, HSC Year 1 and KiDS-1000
• Ultra-light axions and the $S_8$ tension: joint constraints from the cosmic microwave background and galaxy clustering
• First Measurement of the Cross-Correlation of CMB Lensing and Galaxy Lensing
• Dark Energy Survey Year 3 results: cosmological constraints from the analysis of cosmic shear in harmonic space
• Cross-correlating Planck CMB lensing with SDSS: Lensing-lensing and galaxy-lensing cross-correlations
• Shear Power Spectrum Reconstruction using Pseudo-Spectrum Method
• Cross-correlation of Planck CMB Lensing and CFHTLenS Galaxy Weak Lensing Maps
• Cosmic shear power spectra in practice
• Cross-correlation of gravitational lensing from DES Science Verification data with SPT and Planck lensing
• Inferring the Redshift Distribution of the Cosmic Infrared Background
• Dark Energy Survey Year 1 Results: tomographic cross-correlations between DES galaxies and CMB lensing from SPT+Planck
• Dark Energy Survey Year 1 Results: Methodology and Projections for Joint Analysis of Galaxy Clustering, Galaxy Lensing, and CMB Lensing Two-point Functions
• Intrinsic alignments in the cross-correlation of cosmic shear and CMB weak lensing
• The Dark Energy Survey Year 3 and eBOSS: constraining galaxy intrinsic alignments across luminosity and colour space
• Strong detection of the CMB lensingxgalaxy weak lensingcross-correlation from ACT-DR4,PlanckLegacy and KiDS-1000
• CFHTLenS and RCSLenS Cross-Correlation with Planck Lensing Detected in Fourier and Configuration Space
• KiDS-450: Tomographic Cross-Correlation of Galaxy Shear with {\it Planck} Lensing
• Joint analysis of DES Year 3 data and CMB lensing from SPT and Planck II: Cross-correlation measurements and cosmological constraints
• Dark Energy Survey Year 3 results: Marginalisation over redshift distribution uncertainties using ranking of discrete realisations
• The Atacama Cosmology Telescope: Summary of DR4 and DR5 Data Products and Data Access
• Cross-correlation between Subaru Hyper Suprime-Cam Galaxy Weak Lensing and Planck Cosmic Microwave Background Lensing
• Evidence for the Cross-correlation between Cosmic Microwave Background Polarization Lensing from POLARBEAR and Cosmic Shear from Subaru Hyper Suprime-Cam
• Joint analysis of DES Year 3 data and CMB lensing from SPT and Planck I: Construction of CMB Lensing Maps and Modeling Choices
• Can CMB Lensing Help Cosmic Shear Surveys?
• Does jackknife scale really matter for accurate large-scale structure covariances?
• KiDS-1000: cross-correlation with Planck cosmic microwave background lensing and intrinsic alignment removal with self-calibration
• Hyper Suprime-Cam Year 3 Results: Cosmology from Galaxy Clustering and Weak Lensing with HSC and SDSS using the Emulator Based Halo Model
• On constraining Cosmology and the Halo Mass Function with Weak Gravitational Lensing
• Propagating residual biases in masked cosmic shear power spectra
• Hyper Suprime-Cam Year 3 Results: Measurements of Clustering of SDSS-BOSS Galaxies, Galaxy-Galaxy Lensing and Cosmic Shear
• The Atacama Cosmology Telescope: Mitigating the impact of extragalactic foregrounds for the DR6 CMB lensing analysis

Cited by in corpus (7)

• Robust Preference for Dynamical Dark Energy in DESI BAO and SN Measurements
• Planck-PR4 anisotropy spectra show (better) consistency with General Relativity
• LiteBIRD Science Goals and Forecasts: A full-sky measurement of gravitational lensing of the CMB
• Constraining Cosmology With the CMB $\times$ LIM-Nulling Convergence
• A halo model of extragalactic contamination to CMB lensing, delensing, and cross-correlations
• CMB lensing tomography with clustering estimation of lens redshift distributions
• Systematics mitigation for catalogue-based angular power spectra