Pregalactic nucleosynthesis

Details Pregalactic nucleosynthesis Pregalactic nucleosynthesis

May 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977ap%26ss..48..145h&link_type=abstract

Astrophysics and Space Science, vol. 48, no. 1, May 1977, p. 145-158.

Astronomy and Astrophysics

Astrophysics

29

Big Bang Cosmology, Density Distribution, Nuclear Fusion, Stellar Evolution, Galactic Evolution, Stellar Mass, Stellar Motions

Scientific paper

The behavior of density fluctuations in an expanding universe is discussed. It is shown that these should lead to the early formation of pregalactic hydrogen-helium stars of several hundred to several thousand solar masses. These stars flood the universe with radiation having a color temperature of at least 100,000 K; this terminates star formation but permits galaxy formation to continue. About one hundredth of the mass of the galaxies is converted into heavy elements by pregalactic nucleosynthesis.

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