Pop III hypernova nucleosynthesis and abundance trends in extremely metal-poor halo stars

Details Pop III hypernova nucleosynthesis and abundance trends in extremely metal-poor halo stars Pop III hypernova nucleosynthesis and abundance trends in extremely metal-poor halo stars

May 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003nupha.718..632o&link_type=abstract

Nuclear Physics A, Volume 718, p. 632-634.

Physics

Nuclear Physics

4

Scientific paper

We calculate evolution and nucleosynthesis in massive Pop III stars with M = 13 ~ 270Msolar and compare the results with abundances of very metal-poor halo stars. The observed abundances can be explained by the energetic core-collapse supernovae with M <~ 130Msolar (``hypernovae'') but not by pair-instability supernovae (PISNe) with M ~ 140-270Msolar. This result constrains the IMF for the Pop III and very metal-poor Pop II stars.

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