Primordial nucleosynthesis redux

Journal Article · Mon Jul 01 00:00:00 EDT 1991 · Astrophysical Journal; (United States)

DOI:https://doi.org/10.1086/170255· OSTI ID:5223707

Walker, T P; Steigman, G; Kang, Ho-Shik; Schramm, D M; Olive, K A ^[1]

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1. Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (United States) Ohio State Univ., Columbus (United States) NASA/Fermilab Astrophysics Center, Batavia (United States) Chicago Univ., IL (United States) Minnesota Univ., Minneapolis (United States) CNRS, Lab. d'Annecy-le-Vieux de Physique des Particules (France)

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. 140 refs.

• OSTI ID: 5223707
• Journal Information: Astrophysical Journal; (United States), Vol. 376; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMOLOGY
NUCLEOSYNTHESIS
DEUTERIUM
ELEMENT ABUNDANCE
HELIUM 3
HELIUM 4
LITHIUM 7
BARYONS
COMPARATIVE EVALUATIONS
COSMOLOGICAL MODELS
ELEMENTARY PARTICLES
LIMITING VALUES
NEUTRONS
NONLUMINOUS MATTER
UNIVERSE
ABUNDANCE
ALKALI METAL ISOTOPES
EVALUATION
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FERMIONS
HADRONS
HELIUM ISOTOPES
HYDROGEN ISOTOPES
ISOTOPES
LIGHT NUCLEI
LITHIUM ISOTOPES
MATHEMATICAL MODELS
MATTER
NUCLEI
NUCLEONS
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
STABLE ISOTOPES
SYNTHESIS
640106* - Astrophysics & Cosmology- Cosmology