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Constraining cosmology with N-body simulations for future spectroscopic galaxy surveys at
Sy-Yun Pu, Teppei Okumura, Chian-Chou Chen +2
Determining the spatial curvature () independent of cosmic microwave background observations plays a key role in revealing the physics of the early universe. The Hubble tensio…
Inner structure of cold and warm dark matter halos from particle dynamics
Yohsuke Enomoto, Atsushi Taruya, Satoshi Tanaka +1
Using the number of apocenter passages and the radial action of each particle, we characterize the phase-space structure within the multi-stream regions of cold and warm…
First confirmation of anisotropic halo bias from statistically anisotropic matter distributions
Shogo Masaki, Maresuke Shiraishi, Takahiro Nishimichi +2
We confirm for the first time the existence of distinctive halo bias associated with the quadrupolar type of statistical anisotropy (SA) of the linear matter density field using co…
Perturbation Theory Remixed II: Improved Modeling of Nonlinear Bispectrum
Zhenyuan Wang, Donghui Jeong, Atsushi Taruya +2
We present the application of the -th order Eulerian Perturbation Theory (EPT) for modeling the matter bispectrum in real space as an advancement over the Standard Perturbati…
A Parameter-Masked Mock Data Challenge for Beyond-Two-Point Galaxy Clustering Statistics
2pt Collaboration, Elisabeth Krause, Yosuke Kobayashi +23
The last few years have seen the emergence of a wide array of novel techniques for analyzing high-precision data from upcoming galaxy surveys, which aim to extend the statistical a…
Exploring the baryonic effect signature in the Hyper Suprime-Cam Year 3 cosmic shear two-point correlations on small scales: the tension remains present
Ryo Terasawa, Xiangchong Li, Masahiro Takada +10
The baryonic feedback effect is considered as a possible solution to the so-called tension indicated in cosmic shear cosmology. The baryonic effect is more significant on sma…