3 papers
astro-ph.CO2026
An optimal quadratic estimator for window-free cosmic shear power spectra
Taisei Terawaki, Masahiro Takada
The pseudo- estimator recovers the true cosmic shear power spectrum by correcting for the survey window convolution while employing inverse-variance weighting based on intr…
astro-ph.CO2026
Analytical method for computing the covariance matrix of cosmic shear two-point correlation function
Kosuke Nagura, Ryo Terasawa, Taisei Terawaki +1
Accurate estimation of the covariance matrix of cosmic shear statistics is essential for cosmological analyses using current and upcoming wide-area weak lensing surveys. In this wo…
astro-ph.CO2025
Quadratic estimators for unwindowed power spectrum of galaxy-galaxy weak lensing and its application to estimation
Taisei Terawaki, Masahiro Takada, Takanori Taniguchi
Galaxy-galaxy weak lensing provides a powerful means of measuring the average matter distribution around lens galaxies -- i.e., the galaxy bias relation. Properly accounting for th…