Fast Simulations of Gravitational Many-body Problem on RV770 GPU (2009)
Fujiwara, Kazuki, Nakasato, Naohito
The gravitational many-body problem is a problem concerning the movement of bodies, which are interacting through gravity. However, solving the gravitational many-body problem with a CPU takes a lot...
Fast Simulations of Gravitational Many-body Problem on RV770 GPU (2009)
Fujiwara, Kazuki, Nakasato, Naohito
The gravitational many-body problem is a problem concerning the movement of bodies, which are interacting through gravity. However, solving the gravitational many-body problem with a CPU takes a lot...
Tsuyoshi Hamada, Naohito Nakasato
In this paper, we describe a methodology for implementing FPGA-based accelerator(FBA) from a high-level specification language. We have constructed a software package specially tuned for accelerating...
Evolution of Collisionally Merged Massive Stars (2007)
Suzuki, Takeru K., Nakasato, Naohito, Baumgardt, Holger, Ibukiyama, Akihiro, Makino, Junichiro, Ebisuzaki, Toshi
We investigate the evolution of collisionally merged stars with mass of ~100 MSun which might be formed in dense star clusters. We assumed that massive stars with several tens Msun collide typically...
3-D Simulations of the Chemical and Dynamical Evolution of the Galactic Bulge (2003)
Nakasato, Naohito, Nomoto, Ken'ichi
A three-dimensional hydrodynamical N-body model for the formation of the Galaxy is presented with special attention to the formation of the bulge component. Starting with cosmologically motivated...
Nakasato, Naohito, Shigeyama, Toshikazu
The long-term evolution of supernova remnants (SNRs) in the primordial interstellar medium (ISM) with an inhomogeneous structure is calculated to investigate metal enrichment of the primordial gas....
Numerical Simulations of Globular Cluster Formation (2000)
Nakasato, Naohito, Mori, Masao, Nomoto, Ken'ichi
We examine various physical processes associated with the formation of globular clusters by using the three-dimensional Smoothed Particle Hydrodynamics (SPH) code. Our code includes radiative cooling...
Smoothed Particle Hydrodynamics with GRAPE and Parallel Virtual Machine (1997)
Nakasato, Naohito, Mori, Masao, Nomoto, Ken'ichi
We have developed Remote-GRAPE, a subroutine library to use the special purpose computer GRAPE-3A. The GRAPE-3A can efficiently calculate gravitational force between particles, and construct neighbor...
Smoothed Particle Hydrodynamics with GRAPE and Parallel Virtual Machine (1997)
Naohito Nakasato, Naohito Nakasato, Ken'ichi Nomoto, Mori Masao, Mori Masao
We have developed Remote-GRAPE, a subroutine library to use the special purpose computer GRAPE3A. The GRAPE-3A can efficiently calculate gravitational force between particles, and construct neighbor...
Masao Mori, Naohito Nakasato, Shiomi Kumagai
Introduction Observed characteristic features of dwarf elliptical galaxies are the central concentration of luminosity and the low heavy element abundance. Thier luminosity profiles are rather...