We calculate presupernova evolutions and supernova explosions of massive stars (M=13-25 Mo) for various metallicities. We find the following characteristic abundance patterns of nucleosynthesis in the metal-free (Pop III) stars. (1) The alpha-nuclei (from C to Zn) are more efficiently produced than other isotopes, and the abundance pattern of alpha-nuclei can be similar to the solar abundance. In particular, near solar ratios of alpha elements/Fe might be a signature of Pop III which could produce a large amount of Fe. (2) The abundance ratios of odd Z to even Z elements such as Na/Mg and Al/Mg become smaller for lower metallicity. However, these ratios almost saturate below Z
CITATION STYLE
Umeda, H., Nomoto, K., & Nakamura, T. (2006). Evolution and Nucleosynthesis of Metal-Free Massive Stars. In The First Stars (pp. 150–173). Springer-Verlag. https://doi.org/10.1007/10719504_27
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