Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...333...14m&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 333, Oct. 1, 1988, p. 14-20.
Astronomy and Astrophysics
Astrophysics
193
Cosmic Plasma, Elementary Particles, Galactic Evolution, Nuclear Astrophysics, Nuclear Fusion, Deuterium, Lithium Isotopes, Particle Diffusion, Quantum Chromodynamics
Scientific paper
A new, updated reaction network is used to show here how the late-time diffusion of neutrons into proton-rich regions of an inhomogeneous, Omega(b) = 1 early universe can influence the nucleosynthesis in such regions. In particular, it is demonstrated how such diffusion can significantly reduce the high Li-7 abundance associated with previous nonstandard big bang scenarios to levels consistent with observations of Population I and Population II stars. The problem associated with deuterium depletion by galactic chemical evolution is discussed, and the possibility of heavy element production in nonstandard big bang calculations is investigated. It is shown how heavy element production in the parameter space of the universe may help resolve the problem concerning the origin of the s-process elements observed in the atmospheres of second generation stars.
Fowler William A.
Malaney Robert A.
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