Evolution, Explosion and Nucleosynthesis of Pop III Super-Massive Stars

Details Evolution, Explosion and Nucleosynthesis of Pop III Super-Massive Stars Evolution, Explosion and Nucleosynthesis of Pop III Super-Massive Stars

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005omeg.conf..175o&link_type=abstract

ORIGIN OF MATTER AND EVOLUTION OF GALAXIES 2003. Held 17-19 November 2003 in RIKEN, Wako, Saitama, Japan. Edited by M Terasawa,

Astronomy and Astrophysics

Astronomy

Scientific paper

We calculate evolution, explosion and nucleosynthesis of population III very-massive stars with 500 and 1000M&sun;. Then we compare the results of nucleosynthesis with the abundance patterns of hot gases in M82, intracluster matter (ICM), and extremely metal-poor stars in the Galactic halo. The patterns of nucleosynthesis match the observational data in M82, that is, undersolar [O/Fe], [Ne/Fe] and solar values or oversolar [Mg/Fe], [Si/Fe], and [S/Fe] if the contribution of the jet material is not so large. For the halo stars, [O/Fe] in our models are smaller than the observational abundances, but more detailed observations at [Fe/H] ≲ -3 are needed to judge whether pop III very-massive stars contributes to the early Galactic chemical evolution or not.

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