EMP Stars and Hierarchical Model of the Galactic Chemical Evolution

Details EMP Stars and Hierarchical Model of the Galactic Chemical Evolution EMP Stars and Hierarchical Model of the Galactic Chemical Evolution

Aug 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1269..360k&link_type=abstract

THE 10TH INTERNATIONAL SYMPOSIUM ON ORIGIN OF MATTER AND EVOLUTION OF GALAXIES: OMEG-2010. AIP Conference Proceedings, Volume 1

Computer Science

Galaxies, Nucleosynthesis, Stellar Mass, Element Relative Abundance, Galactic Halo, Origin, Formation, And Abundances Of The Elements, Masses, Abundances, Chemical Composition

Scientific paper

Extremely metal-poor (EMP) stars in the Galactic halo are stellar relics from the early universe and can be probes into formation of the Galaxy. We construct a hierarchical chemical evolution model for the early stages of the Galaxy formation and investigate about element abundances of EMP stars theoretically. Especially, we consider the possible difference of IMF of EMP stars and contribution of binary. We compare the predicted MDFs and abundance distributions with observations, and discuss about IMF and contribution from hypernovae in the early universe.

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