An optimal quadratic estimator for window-free cosmic shear power spectra

arXiv:2607.29652 · astro-ph.CO · Submitted 2026-07-31 · Read on arXiv

Taisei Terawaki, Masahiro Takada

astro-ph.CO

Submitted: 2026-07-31

Comments: 13 pages, 8 figures

Code: https://github.com/LSSTDESC/NaMaster

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Weak Lensing — 14× in this paper · explained in 2 episodes
• Alignment — 8× in this paper · explained in 1 episode
• Bispectrum — 5× in this paper · explained in 3 episodes
• Clustering — 4× in this paper · explained in 2 episodes
• Gravitational Lensing — 4× in this paper · explained in 2 episodes
• Anisotropy — 2× in this paper · explained in 3 episodes
• Benchmark — 2× in this paper · explained in 2 episodes
• Accuracy — 1× in this paper · explained in 1 episode
• Legacy Survey of Space and Time — 1× in this paper
• Non-Gaussianity — 1× in this paper · explained in 2 episodes
• Robustness — 1× in this paper · explained in 5 episodes
• Tidal Alignment and Tidal Torquing — 1× in this paper
• University of Tokyo Institutes for Advanced Study — 1× in this paper

Sources

• Weak lensing for precision cosmology
• Hyper Suprime-Cam Year 3 Results: Cosmology from Cosmic Shear Two-point Correlation Functions
• KiDS-Legacy: Cosmological constraints from cosmic shear with the complete Kilo-Degree Survey
• Dark Energy Survey Year 6 Results: Cosmological Constraints from Cosmic Shear
• Analysis of two-point statistics of cosmic shear: I. Estimators and covariances
• Simulations of Wide-Field Weak Lensing Surveys II: Covariance Matrix of Real Space Correlation Functions
• Mock galaxy shape catalogs in the Subaru Hyper Suprime-Cam Survey
• B-modes in cosmic shear from source redshift clustering
• Power Spectra Estimation for Weak Lensing
• Dark Energy Survey Year 3 results: cosmological constraints from the analysis of cosmic shear in harmonic space
• Power Spectrum Super-Sample Covariance
• Simulations of Wide-Field Weak Lensing Surveys I: Basic Statistics and Non-Gaussian Effects
• The Impact of Non-Gaussian Errors on Weak Lensing Surveys
• CosmoLike - Cosmological Likelihood Analyses for Photometric Galaxy Surveys
• Weak Lensing On the Celestial Sphere
• Discriminating weak lensing from intrinsic spin correlations using the curl-gradient decomposition
• Cosmological constraints from cosmic shear two-point correlation functions with HSC survey first-year data
• Exploring the baryonic effect signature in the Hyper Suprime-Cam Year 3 cosmic shear two-point correlations on small scales: the $S_8$ tension remains present
• A pseudo-spectrum analysis of galaxy-galaxy lensing
• The Pseudo-$C_l$ method: Cosmic microwave background anisotropy power spectrum statistics for high precision cosmology

Related papers

• Angular clustering and bias of photometric quasars in the Kilo-Degree Survey Data Release 4
• A Novel kinetic Sunyaev-Zel'dovich Estimator for Electron-Electron Correlations
• Magnetic fields at the dawn of structure formation I. The CARLA J1510+5958 proto-cluster
• Dark Energy Survey Year 6 Results: Weak Lensing and Galaxy Clustering Cosmological Analysis Framework
• Exploring the Impact of Systematic Bias in Type Ia Supernova Cosmology Across Diverse Dark Energy Parametrizations
• Non-Gaussian Galaxy Stochasticity and the Noise-Field Formulation