Physics
Scientific paper
Mar 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aipc..990..244o&link_type=abstract
FIRST STARS III: First Stars II Conference. AIP Conference Proceedings, Volume 990, pp. 244-246 (2008).
Physics
2
Population Iii Stars, Supergiant Stars, Stellar Structure, Interiors, Evolution, Nucleosynthesis, Ages, Origin, Formation, And Abundances Of The Elements, Supernovae
Scientific paper
We calculate evolution, collapse, explosion, and nucleosynthesis of Population III very massive stars with 500Msolar and 1000Msolar. It was found that both 500Msolar and 1000Msolar models enter the region of pair-instability but continue to undergo core collapse to black holes. For moderately aspherical explosions, the patterns of nucleosynthesis match the observational data of intergalactic and intercluster medium and hot gases in M82, better than models involving hypernovae and pair instability supernovae. Our results suggest that explosions of Population III core-collapse very massive stars contribute significantly to the chemical evolution of gases in clusters of galaxies. The final black hole masses are about 500Msolar for our most massive 1000Msolar models. This result may support the view that Population III very massive stars are responsible for the origin of intermediate mass black holes which were recently reported to be discovered.
Maeda Kei--ichi
Nomoto Ken'ichi
Ohkubo Takuya
Rees Martin J.
Suzuki Tmoharu
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