1.1k citations · 7k across the 146 of their papers we have counts for
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Dark Quest. I. Fast and Accurate Emulation of Halo Clustering Statistics and Its Application to Galaxy Clustering
Takahiro Nishimichi, Masahiro Takada, Ryuichi Takahashi +8
We perform an ensemble of -body simulations with particles for 101 flat CDM cosmological models sampled based on a maximin-distance Sliced Latin Hypercube Design. By…
Perturbation theory challenge for cosmological parameters estimation: Matter power spectrum in real space
Ken Osato, Takahiro Nishimichi, Francis Bernardeau +1
We study the accuracy with which cosmological parameters can be determined from real space power spectrum of matter density contrast at weakly nonlinear scales using analytical app…
Constraining cluster masses from the stacked phase space distribution at large radii
Akinari Hamabata, Masamune Oguri, Takahiro Nishimichi
Velocity dispersions have been employed as a method to measure masses of clusters. To complement this conventional method, we explore the possibility of constraining cluster masses…
Splashback radius of nonspherical dark matter halos from cosmic density and velocity fields
Teppei Okumura, Takahiro Nishimichi, Keiichi Umetsu +1
We investigate the splashback features of dark-matter halos based on cosmic density and velocity fields. Besides the density correlation function binned by the halo orientation ang…
GridSPT: Grid-based calculation for perturbation theory of large-scale structure
Atsushi Taruya, Takahiro Nishimichi, Donghui Jeong
Perturbation theory (PT) calculation of large-scale structure has been used to interpret the observed non-linear statistics of large-scale structure at the quasi-linear regime. In…
Bispectrum as Baryon Acoustic Oscillation Interferometer
Hillary L. Child, Masahiro Takada, Takahiro Nishimichi +4
The galaxy bispectrum, measuring excess clustering of galaxy triplets, offers a probe of dark energy via baryon acoustic oscillations (BAOs). However up to now it has been severely…