1.1k citations · 1.9k across the 29 of their papers we have counts for
29 papers
Nonlinear stochastic biasing of halos: Analysis of cosmological N-body simulations and perturbation theories
Masanori Sato, Takahiko Matsubara
It is crucial to understand and model a behavior of galaxy biasing for future ambitious galaxy redshift surveys. Using 40 large cosmological N-body simulations for a standard Lambd…
Impact of the non-Gaussian covariance of the weak lensing power spectrum and bispectrum on cosmological parameter estimation
Masanori Sato, Takahiro Nishimichi
We study how well the Gaussian approximation is valid for computing the covariance matrices of the convergence power and bispectrum in weak gravitational lensing analyses. We focus…
Revising the Halofit Model for the Nonlinear Matter Power Spectrum
Ryuichi Takahashi, Masanori Sato, Takahiro Nishimichi +2
Based on a suite of state-of-the-art high-resolution -body simulations, we revisit the so-called halofit model (Smith et al. 2003) as an accurate fitting formula for the nonline…
Scatter and bias in weak lensing selected clusters
Takashi Hamana, Masamune Oguri, Masato Shirasaki +1
We examine scatter and bias in weak lensing selected clusters, employing both an analytic model of dark matter haloes and numerical mock data of weak lensing cluster surveys. We pa…
Modeling of weak lensing statistics. II. Configuration-space statistics
Patrick Valageas, Masanori Sato, Takahiro Nishimichi
We investigate the performance of an analytic model of the 3D matter distribution, which combines perturbation theory with halo models, for weak-lensing configuration-space statist…
Modeling of weak lensing statistics. I. Power spectrum and bispectrum
Patrick Valageas, Masanori Sato, Takahiro Nishimichi
We investigate the performance of an analytic model of the 3D matter distribution, which combines perturbation theory with halo models, for weak-lensing statistics. We compare our…