Cosmological lensing ratios with DES Y1, SPT and Planck
arXiv:1810.02212 · doi:10.1093/mnras/stz1309
Abstract
Correlations between tracers of the matter density field and gravitational lensing are sensitive to the evolution of the matter power spectrum and the expansion rate across cosmic time. Appropriately defined ratios of such correlation functions, on the other hand, depend only on the angular diameter distances to the tracer objects and to the gravitational lensing source planes. Because of their simple cosmological dependence, such ratios can exploit available signal-to-noise down to small angular scales, even where directly modeling the correlation functions is difficult. We present a measurement of lensing ratios using galaxy position and lensing data from the Dark Energy Survey, and CMB lensing data from the South Pole Telescope and Planck, obtaining the highest precision lensing ratio measurements to date. Relative to the concordance CDM model, we find a best fit lensing ratio amplitude of . We use the ratio measurements to generate cosmological constraints, focusing on the curvature parameter. We demonstrate that photometrically selected galaxies can be used to measure lensing ratios, and argue that future lensing ratio measurements with data from a combination of LSST and Stage-4 CMB experiments can be used to place interesting cosmological constraints, even after considering the systematic uncertainties associated with photometric redshift and galaxy shear estimation.
arXiv comment17 pages, 11 figures
References in corpus (60)
- emcee: The MCMC Hammer
- Planck 2015 results. XIII. Cosmological parameters
- The Astropy Project: Building an inclusive, open-science project and status of the v2.0 core package
- The DESI Experiment Part I: Science,Targeting, and Survey Design
- Dark Energy Survey Year 1 Results: Cosmological Constraints from Galaxy Clustering and Weak Lensing
- Bayesian photometric redshift estimation
- Revising the Halofit Model for the Nonlinear Matter Power Spectrum
- The Dark Energy Camera
- The Dark Energy Survey: more than dark energy - an overview
- LSST Science Book, Version 2.0
- Why your model parameter confidences might be too optimistic -- unbiased estimation of the inverse covariance matrix
- Cosmological implications of baryon acoustic oscillation (BAO) measurements
- Dark Energy Survey Year 1 Results: Cosmological Constraints from Cosmic Shear
- Mass Reconstruction with CMB Polarization
- Cross-correlation Tomography: Measuring Dark Energy Evolution with Weak Lensing
- The Nature of Galaxy Bias and Clustering
- The effects of galaxy formation on the matter power spectrum: A challenge for precision cosmology
- Cosmic Confusion: Degeneracies among Cosmological Parameters Derived from Measurements of Microwave Background Anisotropies
- CMB-S4 Science Book, First Edition
- Advanced ACTPol Cryogenic Detector Arrays and Readout
- Detection of (dark) matter concentrations via weak gravitational lensing
- The Skewness of the Aperture Mass Statistic
- Power Spectrum Super-Sample Covariance
- Practical Weak Lensing Shear Measurement with Metacalibration
- Dark Energy Survey Year 1 Results: Weak Lensing Mass Calibration of redMaPPer Galaxy Clusters
- redMaGiC: Selecting Luminous Red Galaxies from the DES Science Verification Data
- Dark Energy Survey Year 1 Results: Weak Lensing Shape Catalogues
- Dark Energy Survey Year 1 Results: Redshift distributions of the weak lensing source galaxies
- Forecasting Cosmological Constraints from Redshift Surveys
- 3D weak lensing
- Weak lensing analysis in three dimensions
- Dark Energy Survey Year 1 Results: Galaxy clustering for combined probes
- Weak-lensing mass calibration of redMaPPer galaxy clusters in Dark Energy Survey Science Verification data
- Dark Energy Survey Year 1 Results: Multi-Probe Methodology and Simulated Likelihood Analyses
- Metacalibration: Direct Self-Calibration of Biases in Shear Measurement
- CMB lensing tomography with the DES Science Verification galaxies
- Dark Energy Survey Year 1 Results: Galaxy-Galaxy Lensing
- Dark Energy Survey Year 1 Results: Curved-Sky Weak Lensing Mass Map
- Mitigating Foreground Biases in CMB Lensing Reconstruction Using Cleaned Gradients
- Cross-correlation between the CMB lensing potential measured by Planck and high-z sub-mm galaxies detected by the Herschel-ATLAS survey
- Separating intrinsic alignment and galaxy-galaxy lensing
- Measuring dark energy properties with 3D cosmic shear
- Looking through the same lens: shear calibration for LSST, Euclid & WFIRST with stage 4 CMB lensing
- Dark Energy Survey Year 1 Results: Cross-Correlation Redshifts - Methods and Systematics Characterization
- Metric Tests for Curvature from Weak Lensing and Baryon Acoustic Oscillations
- A 2500 square-degree CMB lensing map from combined South Pole Telescope and Planck data
- Dark Energy Survey Year 1 Results: Joint Analysis of Galaxy Clustering, Galaxy Lensing, and CMB Lensing Two-point Functions
- Banana Split: Testing the Dark Energy Consistency with Geometry and Growth
- Joint Measurement of Lensing-Galaxy Correlations Using SPT and DES SV Data
- Dark Energy Survey Year 1 Results: The Impact of Galaxy Neighbours on Weak Lensing Cosmology with im3shape
- 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
- Dark Energy Survey Year 1 Results: Calibration of redMaGiC Redshift Distributions in DES and SDSS from Cross-Correlations
- Dark Energy Survey Year 1 Results: Cross-Correlation Redshifts in the DES -- Calibration of the Weak Lensing Source Redshift Distributions
- Measuring Distance Ratios with CMB-Galaxy Lensing Cross-correlations
- Measurement of a Cosmographic Distance Ratio with Galaxy and CMB Lensing
- Wavelet reconstruction of E and B modes for CMB polarisation and cosmic shear analyses
- CMB Cluster Lensing: Cosmography with the Longest Lever Arm
- Mapping dark matter on the celestial sphere with weak gravitational lensing
- RCSLenS: Cosmic Distances from Weak Lensing
Cited by in corpus (19)
- Dark Energy Survey Year 3 Results: Cosmology from Cosmic Shear and Robustness to Modeling Uncertainty
- Dark Energy Survey Year 1 Results: Redshift distributions of the weak lensing source galaxies
- Dark Energy Survey Year 3 Results: Redshift Calibration of the Weak Lensing Source Galaxies
- The Atacama Cosmology Telescope: A CMB lensing mass map over 2100 square degrees of sky and its cross-correlation with BOSS-CMASS galaxies
- Advances in Constraining Intrinsic Alignment Models with Hydrodynamic Simulations
- Dark Energy Survey Year 3 Results: Exploiting small-scale information with lensing shear ratios
- Weak Lensing Tomographic Redshift Distribution Inference for the Hyper Suprime-Cam Subaru Strategic Program three-year shape catalogue
- Controlling and leveraging small-scale information in tomographic galaxy-galaxy lensing
- Joint analysis of DES Year 3 data and CMB lensing from SPT and Planck II: Cross-correlation measurements and cosmological constraints
- Cosmological parameter forecasts by a joint 2D tomographic approach to CMB and galaxy clustering
- A Composite Likelihood Approach for Inference under Photometric Redshift Uncertainty
- Blueshifted absorption lines from X-ray reflection in IRAS 13224-3809
- An unbiased method of measuring the ratio of two data sets
- Non-local contribution from small scales in galaxy-galaxy lensing: Comparison of mitigation schemes
- Geometrical constraints on curvature from galaxy-lensing cross-correlations
- Effects of boosting on extragalactic components: methods and statistical studies
- Measuring lensing ratios with future cosmological surveys
- Cosmic shear nulling as a geometrical cosmological probe: Methodology and sensitivity to cosmological parameters and systematics
- Hyper Suprime-Cam Y3 results: photo- bias calibration with lensing shear ratios and cosmological constraints from cosmic shear