collaborators

4 papers

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…

astro-ph.CO2025

Cosmology and Source Redshift Constraints from Galaxy Clustering and Tomographic Weak Lensing with HSC Y3 and SDSS using the Point-Mass Correction Model

Tianqing Zhang, Xiangchong Li, Sunao Sugiyama +13

The combination of galaxy clustering and weak lensing is a powerful probe of the cosmology model. We present a joint analysis of galaxy clustering and weak lensing cosmology using…

astro-ph.CO2025

Modelling Galaxy Clustering and Tomographic Galaxy-Galaxy Lensing with HSC Y3 and SDSS using the Point-Mass Correction Model and Redshift Self-Calibration

Tianqing Zhang, Sunao Sugiyama, Surhud More +13

The combination of galaxy-galaxy weak lensing and galaxy clustering is a powerful probe of the cosmological model, and exploration of how to best model and extract this information…

astro-ph.CO2025

Weak-Lensing Shear-Selected Galaxy Clusters from the Hyper Suprime-Cam Subaru Strategic Program: I. Cluster Catalog, Selection Function and Mass--Observable Relation

Kai-Feng Chen, I-Non Chiu, Masamune Oguri +9

We present the first step toward deriving cosmological constraints through the abundances of galaxy clusters selected in a weak-lensing aperture mass map, con…