Pregalactic synthesis of deuterium

Details Pregalactic synthesis of deuterium Pregalactic synthesis of deuterium

Feb 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983prhe.work...71a&link_type=abstract

IN: ESO Workshop on Primordial Helium, Garching, West Germany, February 2, 3, 1983, Proceedings (A83-50030 24-90). Garching, Wes

Astronomy and Astrophysics

Astronomy

2

Abundance, Big Bang Cosmology, Cosmochemistry, Deuterium, Nuclear Fusion, Astronomical Models, Chemical Evolution, Galactic Evolution

Scientific paper

A hypothesis is proposed in which D and He-4 are synthesized in pregalactic phases after a cold big bang that produced nothing but hydrogen. According to the hypothesis, helium was produced by massive pregalactic stars which imploded, ejecting high velocity winds consisting of helium and hydrogen. The interaction of this wind with the ambient hydrogen could have produced deuterium by either of two discussed processes. The energy density requirements for these processes are not unreasonable for the pregalactic or protogalactic environments. Quasars, for example, have been associated with the pregalactic phase, and their bolometric luminosities are up to 10,000 times larger than that of the Galaxy.

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