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Title:
Primordial nucleosynthesis redux
Authors:
Walker, Terry P.; Steigman, Gary; Kang, Ho-Shik; Schramm, David M.; Olive, Keith A.
Affiliation:
AA(Harvard-Smithsonian Center for Astrophysics, Cambridge, MA; Ohio State University, Columbus), AB(Ohio State University, Columbus), AC(Ohio State University, Columbus), AD(NASA/Fermilab Astrophysics Center, Batavia; Chicago, University, IL), AE(Minnesota, University, Minneapolis; CNRS, Laboratoire d'Annecy-le-Vieux de Physique des Particules, France)
Publication:
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 376, July 20, 1991, p. 51-69. (ApJ Homepage)
Publication Date:
07/1991
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
ABUNDANCE, BIG BANG COSMOLOGY, ELEMENTARY PARTICLES, NUCLEAR FUSION, UNIVERSE, DEUTERIUM, HELIUM ISOTOPES, NEUTRONS, NUCLEAR REACTIONS, RADIATIVE LIFETIME
DOI:
10.1086/170255
Bibliographic Code:
1991ApJ...376...51W

Abstract

The abundances of D, He-3, He-4, and Li-7, are presently recalculated within the framework of primordial nucleosynthesis in the standard hot big band model, in order to estimate the primordial abundances of the light elements. A comparison between theory and experiment demonstrates the consistency of standard model predictions; the baryon density parameter is constrained on the basis of a nucleon-to-photon ratio of 2.8-4.0. These bounds imply that the bulk of the baryons in the universe are dark, requiring that the universe be dominated by nonbaryonic matter.

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