Abstract
Only stars with masses in excess of Mc∼200 M⊙ can generate a cosmologically significant amount of helium1–3 without overproducing either metals2,3 or radiation2. Such very massive objects (VMOs) would also leave a large number of black hole remnants. Recent stellar evolution calculations4,5 show that the helium-rich envelope of VMOs could undergo explosive ejection. We describe here a viable model of primordial helium synthesis which can be constructed after recombination, providing heavy elements are not dredged up and ejected at the same time.
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Bond, J., Carr, B. & Arnett, W. Can Population III stars generate primordial helium?. Nature 304, 514–515 (1983). https://doi.org/10.1038/304514a0
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DOI: https://doi.org/10.1038/304514a0
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