Computer Science
Scientific paper
Apr 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007iaus..238..241t&link_type=abstract
Black Holes from Stars to Galaxies -- Across the Range of Masses. Edited by V. Karas and G. Matt. Proceedings of IAU Symposium #
Computer Science
1
Scientific paper
We calculate the evolution, explosion, collapse, and nucleosynthesis of Population III very-massive stars with 500 solar mass and 1000 solar mass. The evolution is calculated in spherical symmetry, while the explosion, collapse and nucleosynthesis are calculated by a two-dimensional code, based on the bipolar jet models. We compare the results of nucleosynthesis with the abundance patterns of intercluster matter, hot gases in M82, and extremely metal-poor stars in the Galactic halo. It was found that both 500 solar mass and 1000 solar mass models enter the stage of iron-core collapse, not pair-instability supernovae. Our results suggest that the explosions of Population III very-massive stars contribute significantly to the chemical evolution of gases in clusters of galaxies. The final black hole masses are about 500 solar mass for our most massive 1000 solar mass 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 Tomoharu
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