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Cosmological inference from emulator based halo model I: Validation tests with HSC and SDSS mock catalogs
Hironao Miyatake, Yosuke Kobayashi, Masahiro Takada +7
We present validation tests of emulator-based halo model method for cosmological parameter inference, assuming hypothetical measurements of the projected correlation function of ga…
Power Spectrum of Intrinsic Alignments of Galaxies in IllustrisTNG
Jingjing Shi, Toshiki Kurita, Masahiro Takada +3
We present the 3-{\it dimensional} intrinsic alignment power spectra between the projected 2d galaxy shape/spin and the 3d tidal field across using cosmo…
Validating a minimal galaxy bias method for cosmological parameter inference using HSC-SDSS mock catalogs
Sunao Sugiyama, Masahiro Takada, Yosuke Kobayashi +4
We assess the performance of a perturbation theory inspired method for inferring cosmological parameters from the joint measurements of galaxy-galaxy weak lensing () and the pr…
Impacts of pre-initial conditions on anisotropic separate universe simulations: a boosted tidal response in the epoch of reionization
Shogo Masaki, Takahiro Nishimichi, Masahiro Takada
To generate initial conditions for cosmological -body simulations, one needs to prepare a uniform distribution of simulation particles, so-called the pre-initial condition (pre-…
Covariance of the matter power spectrum including the survey window function effect: N-body simulations vs. fifth-order perturbation theory on grid
Atsushi Taruya, Takahiro Nishimichi, Donghui Jeong
We present a Next-to-next-to-leading (fifth or NNLO) order calculation for the covariance matrix of the matter power spectrum, taking into account the effect of survey window funct…
Imprint of anisotropic primordial non-Gaussianity on halo intrinsic alignments in simulations
Kazuyuki Akitsu, Toshiki Kurita, Takahiro Nishimichi +2
Using -body simulations of cosmological large-scale structure formation, for the first time, we show that the anisotropic primordial non-Gaussianity (PNG) causes a scale-depende…