273 citations · 2k across the 64 of their papers we have counts for
9 papers · 1 filter
Semi-analytic modelling of AGNs: auto-correlation function and halo occupation
Taira Oogi, Hikari Shirakata, Masahiro Nagashima +5
The spatial clustering of active galactic nuclei (AGNs) is considered to be one of the important diagnostics for the understanding of the underlying processes behind their activiti…
The impact of filamentary accretion of subhaloes on the shape and orientation of haloes
Yu Morinaga, Tomoaki Ishiyama
Dark matter haloes are formed through hierarchical mergers of smaller haloes in large-scale cosmic environments, and thus anisotropic subhalo accretion through cosmic filaments hav…
Void Formation: Does the Void-in-Cloud Process Matter?
Hei Yin Jowett Chan, Masashi Chiba, Tomoaki Ishiyama
We investigate the basic properties of voids from high resolution, cosmological N-body simulations of Λ-dominated cold dark matter (ΛCDM) models, in order to compare with the analy…
Discrimination of heavy elements originating from Pop III stars in z = 3 intergalactic medium
Takanobu Kirihara, Kenji Hasegawa, Masayuki Umemura +2
We investigate the distribution of metals in the cosmological volume at , in particular, provided by massive population III (Pop III) stars using a cosmological -body si…
The Abundance and Structure of Subhaloes near the Free Streaming Scale and Their Impact on Indirect Dark Matter Searches
Tomoaki Ishiyama, Shin'ichiro Ando
The free streaming motion of dark matter particles imprints a cutoff in the matter power spectrum and set the scale of the smallest dark matter halo. Recent cosmological -body s…
Effect of interstellar objects on metallicity of low-mass first stars formed in a cosmological model
Takanobu Kirihara, Ataru Tanikawa, Tomoaki Ishiyama
We investigate metal pollution onto the surface of low-mass population III stars (Pop. III survivors) via interstellar objects floating in the Galactic interstellar medium. Only re…