121 citations · 142 across the 8 of their papers we have counts for
23 papers · 1 filter
Evolution of Massive Blackhole Triples II -- The effect of the BH triples dynamics on the structure of the galactic nuclear
Masaki Iwasawa, Yoko Funato, Junichiro Makino
In this paper, we investigate the structures of galaxies which either have or have had three BHs using -body simulations, and compare them with those of galaxies with binary BHs…
Distributed N-body Simulation on the Grid Using Dedicated Hardware
Derek Groen, Simon Portegies Zwart, Steve McMillan +1
We present performance measurements of direct gravitational N -body simulation on the grid, with and without specialized (GRAPE-6) hardware. Our inter-continental virtual organizat…
6th and 8th Order Hermite Integrator for N-body Simulations
Keigo Nitadori, Junichiro Makino
We present sixth- and eighth-order Hermite integrators for astrophysical -body simulations, which use the derivatives of accelerations up to second order ({\it snap}) and third…
Modeling Dense Stellar Systems
Piet Hut, Shin Mineshige, Douglas C. Heggie +1
Black holes and neutron stars present extreme forms of matter that cannot be created as such in a laboratory on Earth. Instead, we have to observe and analyze the experiments that…
Modified SIMD architecture suitable for single-chip implementation
Junichiro Makino
We describe a modified SIMD architecture suitable for single-chip integration of a large number of processing elements, such as 1,000 or more. Important differences from traditiona…
Dynamics of Intermediate Mass Black Holes in Star Clusters
Holger Baumgardt, Simon Portegies Zwart, Steve McMillan +2
We have followed the evolution of multi-mass star clusters containing massive central black holes by N-body simulations on the GRAPE6 computers of Tokyo University. We find a stron…