Mathematics – Logic
Scientific paper
Mar 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aipc..990..390s&link_type=abstract
FIRST STARS III: First Stars II Conference. AIP Conference Proceedings, Volume 990, pp. 390-392 (2008).
Mathematics
Logic
Population Iii Stars, Star Formation, Hydrodynamics
Scientific paper
In order to investigate the mass distribution of Population III stars, we have developed high-resolution cosmological hydrodynamic simulations in a standard ΛCDM universe. We use a Particle-Particle-Particle-Mesh (P3M) scheme for gravity force calculations, where the PP part is calculated by GRAPE (special purpose board for gravity calculation). The baryon component is treated by Smoothed Particle Hydrodynamics (SPH) method.
The simulations are performed on a newly developed dedicated PC-cluster system named FIRST simulator with the peak speed of 36 T flops at the University of Tsukuba. Using this simulator, we perform high-resolution simulations with 2×107 of dark matter and SPH particles, respectively. With this large number of particles, sub-solar mass resolution for baryon particles can be achieved all over the simulation box. Therefore, we can resolve small scale density fluctuations, which may play an important role in the formation of intermediate-mass Pop III stars formation.
Sato Daisuke
Susa Hajime
Suwa Tamon
Umemura Masayuki
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