8 papers
Modeling survey-window and integral-constraint effects on PNG in the galaxy power spectrum with light-cone mocks
Shintaro Nakano, Masahiro Takada, Toshiki Kurita +1
We develop an analysis framework based on {\em light-cone} galaxy mock catalogs constructed from linear theory simulations in order to accurately model the impact of primordial non…
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…
The contribution from small scales on two-point shear analysis: comparison between power spectrum and correlation function
João Ferri, Elisa G. M. Ferreira, Ryo Terasawa
A known problem in cosmic shear two-point statistics is the apparent inconsistency between analyses performed in harmonic space (power spectrum) and real space (angular correlation…
Impact of Simulation Box Size for Weak Lensing: Replication and Super-Sample Effects
Akira Tokiwa, Adrian E. Bayer, Joaquin Armijo +6
We quantify the bias caused by small simulation box size on weak lensing observables and covariances, considering both replication and super-sample effects for a range of higher-or…
The impact of the redshift-dependent selection effect of halos on the redshift-space power spectrum
Kanmi Nose, Masahiro Takada, Ryo Terasawa
In a wide-area spectroscopic survey of galaxies, it is nearly impossible to obtain a homogeneous sample of galaxies with respect to galaxy properties such as stellar mass and host…
Late-time suppression of structure growth as a solution for the tension
Ryo Terasawa, Masahiro Takada, Toshiki Kurita +1
The value inferred from the Subaru Hyper Suprime-Cam (HSC) Year 3 cosmic shear data, under the assumption of the flat CDM model, is 2-3 lower than that inferred from…