Tomoaki Ishiyama
Tomoaki Ishiyama
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4.45 Pflops astrophysical N-body simulation on K computer--The gravitational trillion-body problem
T Ishiyama, K Nitadori, J Makino
SC'12: Proceedings of the International Conference on High Performance …, 2012
1082012
Hierarchical Formation of Dark Matter Halos and the Free Streaming Scale
T Ishiyama
The Astrophysical Journal 788 (1), 27, 2014
902014
The cosmogrid simulation: Statistical properties of small dark matter halos
T Ishiyama, S Rieder, J Makino, SP Zwart, D Groen, K Nitadori, C De Laat, ...
The Astrophysical Journal 767 (2), 146, 2013
852013
GreeM: massively parallel TreePM code for large cosmological N-body simulations
T Ishiyama, T Fukushige, J Makino
Publications of the Astronomical Society of Japan 61 (6), 1319-1330, 2009
852009
The ν2GC simulations: Quantifying the dark side of the universe in the Planck cosmology
T Ishiyama, M Enoki, MAR Kobayashi, R Makiya, M Nagashima, T Oogi
Publications of the Astronomical Society of Japan 67 (4), 61, 2015
792015
24.77 Pflops on a gravitational tree-code to simulate the Milky Way Galaxy with 18600 GPUs
J Bédorf, E Gaburov, MS Fujii, K Nitadori, T Ishiyama, SP Zwart
SC'14: Proceedings of the International Conference for High Performance …, 2014
742014
Gamma-ray signal from Earth-mass dark matter microhalos
T Ishiyama, J Makino, T Ebisuzaki
The Astrophysical Journal Letters 723 (2), L195, 2010
742010
Where are the Low-mass Population III Stars?
T Ishiyama, K Sudo, S Yokoi, K Hasegawa, N Tominaga, H Susa
The Astrophysical Journal 826 (1), 9, 2016
622016
Modeling evolution of dark matter substructure and annihilation boost
N Hiroshima, S Ando, T Ishiyama
Physical Review D 97 (12), 123002, 2018
532018
Variation of the subhalo abundance in dark matter halos
T Ishiyama, T Fukushige, J Makino
The Astrophysical Journal 696 (2), 2115, 2009
502009
Evolution of star clusters in a cosmological tidal field
S Rieder, T Ishiyama, P Langelaan, J Makino, SLW McMillan, ...
Monthly Notices of the Royal Astronomical Society 436 (4), 3695-3706, 2013
44*2013
SILVERRUSH. VI. A simulation of Lyα emitters in the reionization epoch and a comparison with Subaru Hyper Suprime-Cam survey early data
AK Inoue, K Hasegawa, T Ishiyama, H Yajima, I Shimizu, M Umemura, ...
Publications of the Astronomical Society of Japan 70 (3), 55, 2018
432018
Anti-hierarchical Evolution of the Active Galactic Nucleus Space Density in a Hierarchical Universe
M Enoki, T Ishiyama, MAR Kobayashi, M Nagashima
The Astrophysical Journal 794 (1), 69, 2014
362014
Simulating the universe on an intercontinental grid
SP Zwart, D Groen, T Ishiyama, K Nitadori, C de Laat, S McMillan, K Hiraki, ...
Computer 43 (8), 63-70, 2010
352010
The New Numerical Galaxy Catalog (ν2GC): An updated semi-analytic model of galaxy and active galactic nucleus formation with large cosmological N-body simulations
R Makiya, M Enoki, T Ishiyama, MAR Kobayashi, M Nagashima, ...
Publications of the Astronomical Society of Japan 68 (2), 25, 2016
322016
Constraints on warm dark matter from weak lensing in anomalous quadruple lenses
KT Inoue, R Takahashi, T Takahashi, T Ishiyama
Monthly Notices of the Royal Astronomical Society 448 (3), 2704-2716, 2015
322015
Halo substructure boosts to the signatures of dark matter annihilation
S Ando, T Ishiyama, N Hiroshima
Galaxies 7 (3), 68, 2019
242019
Dynamical evolution of primordial dark matter haloes through mergers
G Ogiya, D Nagai, T Ishiyama
Monthly Notices of the Royal Astronomical Society 461 (3), 3385-3396, 2016
202016
The New Numerical Galaxy Catalogue (ν2GC): properties of active galactic nuclei and their host galaxies
H Shirakata, T Okamoto, T Kawaguchi, M Nagashima, T Ishiyama, ...
Monthly Notices of the Royal Astronomical Society 482 (4), 4846-4873, 2019
192019
The connection between the cusp-to-core transformation and observational universalities of DM haloes
G Ogiya, M Mori, T Ishiyama, A Burkert
Monthly Notices of the Royal Astronomical Society: Letters 440 (1), L71-L75, 2014
192014
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Artikelen 1–20