Chemical evolution of intermediate mass nuclei in the solar neighbourhood and the halo of the galaxy

Astronomy and Astrophysics – Astronomy

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Scientific paper

Recent observations of Fe group elements in very low metallicity stars show an evolutionary trend very different from that of Fe, implying divergent paths of chemical evolution for these elements. In the present work we have investigated the chemical evolution of intermediate mass nuclei in the solar neighbourhood and the halo of the Galaxy with a two zone model of Galactic chemical evolution using a comprehensive set of theoretically computed yields covering the entire range from H to Ge. It is shown that with a two zone model the main observational constraints of the solar neighbourhood can be satisfied.

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