Weak Gravitational Lensing Bispectrum
arXiv:astro-ph/0004151 · doi:10.1086/318660
Abstract
Weak gravitational lensing observations probe the spectrum and evolution of density fluctuations and the cosmological parameters which govern them. The non-linear evolution of large scale structure produces a non-Gaussian signal which is potentially observable in galaxy shear data. We study the three-point statistics of the convergence, specifically the bispectrum, using the dark matter halo approach which describes the density field in terms of correlations between and within dark matter halos. Our approach allows us to study the effect of the mass distribution in observed fields, in particular the bias induced by the lack of rare massive halos (clusters) in observed fields. We show the convergence skewness is primarily due to rare and massive dark matter halos with skewness converging to its mean value only if halos of mass M > 10^15 M_\sun are present. This calculational method can in principle be used to correct for such a bias as well as to search for more robust statistics related to the two and three point correlations.
9 ApJ pages, 8 figures; submitted to ApJ
References in corpus (15)
- Analytic model for galaxy and dark matter clustering
- Detection of weak gravitational lensing distortions of distant galaxies by cosmic dark matter at large scales
- Detection of Weak Gravitational Lensing by Large-scale Structure
- Deriving the Nonlinear Cosmological Power Spectrum and Bispectrum from Analytic Dark Matter Halo Profiles and Mass Functions
- Measuring Cosmological Parameters from the Evolution of Cluster X-ray Temperatures
- Weak lensing surveys and the intrinsic correlation of galaxy ellipticities
- Intrinsic Correlation of Galaxy Shapes: Implications for Weak Lensing Measurements
- A New Algorithm for Computing Statistics of Weak Lensing by Large-Scale Structure
- Statistics of Dark Matter Halos from Gravitational Lensing
- The Statistics of Weak Lensing at Small Angular Scales: Probability Distribution Function
- Large-Scale Sunyaev-Zel'dovich Effect: Measuring Statistical Properties with Multifrequency Maps
- Weak Lensing by Large-Scale Structure: A Dark Matter Halo Approach
- Halo Profiles and the Nonlinear Two- and Three-Point Correlation Functions of Cosmological Mass Density
- What Does It Take to Stabilize Gravitational Clustering?
- Gravitational Clustering from Chi^2 Initial Conditions
Cited by in corpus (60)
- Observational Probes of Cosmic Acceleration
- Large-Scale Galaxy Bias
- Intrinsic alignment-lensing interference as a contaminant of cosmic shear
- Cosmology with cosmic shear observations: a review
- Weak Gravitational Lensing by Large-Scale Structure
- Cosmological parameters from lensing power spectrum and bispectrum tomography
- Cosmology and the Bispectrum
- Weak Lensing and Dark Energy
- Correlation of CMB with large-scale structure: II. Weak lensing
- Fast likelihood-free cosmology with neural density estimators and active learning
- The Three-Point Correlation Function in Cosmology
- Power Spectrum Covariance of Weak Gravitational Lensing
- Three-Point Correlations in Weak Lensing Surveys: Model Predictions and Applications
- Information content of weak lensing power spectrum and bispectrum: including the non-Gaussian error covariance matrix
- Nuisance hardened data compression for fast likelihood-free inference
- Dark Energy Survey Year 1 Results: Curved-Sky Weak Lensing Mass Map
- The integrated Sachs-Wolfe Effect -- Large Scale Structure Correlation
- Weak lensing, dark matter and dark energy
- Non-linear Integrated Sachs-Wolfe Effect
- FASTLens (FAst STatistics for weak Lensing) : Fast method for Weak Lensing Statistics and map making
- Cosmological Forecast for non-Gaussian Statistics in large-scale weak Lensing Surveys
- Lensing Bias in Cosmic Shear
- Non-Gaussian Aspects of Thermal and Kinetic Sunyaev-Zel'dovich Effects
- Optimal capture of non-Gaussianity in weak lensing surveys: power spectrum, bispectrum and halo counts
- The Kurtosis of the Cosmic Shear Field
- The Weak Lensing Bispectrum
- Biased Dark Energy Constraints from Neglecting Reduced Shear in Weak Lensing Surveys
- Non-Gaussianity and the CMB Bispectrum: confusion between Primordial and Lensing-Rees Sciama contribution?
- Fitting the nonlinear matter bispectrum by the Halofit approach
- Dark Energy and Neutrino Masses from Future Measurements of the Expansion History and Growth of Structure
- Improving Weak Lensing Mass Map Reconstructions using Gaussian and Sparsity Priors: Application to DES SV
- Mitigating contamination in LSS surveys: a comparison of methods
- Non-Gaussianity from Large-Scale Structure Surveys
- Squared temperature-temperature power spectrum as a probe of the CMB bispectrum
- Separate Universe Simulations with IllustrisTNG: baryonic effects on power spectrum responses and higher-order statistics
- Cosmic shear bispectrum from second-order perturbations in General Relativity
- Cosmological constraints from the capture of non-Gaussianity in Weak Lensing data
- Higher-order moments of the lensing shear and other spin two fields
- Accurate Analytic Model for the Weak Lensing Convergence One-Point Probability Distribution Function and its Auto-Covariance
- Reliability of the dark matter clustering in cosmological N-body simulation on scales below the mean separation length of particles
- Non-Gaussianity: Comparing wavelet and Fourier based methods
- Cosmological Three-Point Function: Testing The Halo Model Against Simulations
- Intrinsic/Extrinsic Density-Ellipticity Correlations and Galaxy-Galaxy Lensing
- The squeezed matter bispectrum covariance with responses
- Large-Scale Non-Gaussianities in the 21 cm Background Anisotropies From the Era of Reionization
- A Measurement of Primordial Non-Gaussianity Using WMAP 5-Year Temperature Skewness Power Spectrum
- A numerical study of the effects of primordial non-Gaussianities on weak lensing statistics
- Modelling the matter bispectrum at small scales in modified gravity
- Dark Matter in Cosmology
- Weak lensing probe of cubic Galileon model
- Variations of cosmic large-scale structure covariance matrices across parameter space
- Optimal void finders in weak lensing maps
- Cosmological model differentiation through weak gravitational lensing
- Influence of the local Universe on weak gravitational lensing surveys
- Reconstructing the Thermal Sunyaev-Zel'dovich Effect in 3D
- Evolution of Power Spectrum in Non-Gaussian Models
- Neural style transfer of weak lensing mass maps
- Cosmological constraints from HSC Y1 lensing convergence PDF
- Explicit computation of shear three-point correlation functions: the one-halo model case
- Effect of dust in circumgalactic haloes on the cosmic shear power spectrum