Evidence for a nonvanishing energy density of the vacuum (or cosmological constant)

Journal Article · Sat Feb 15 00:00:00 EST 1986 · Astrophys. J., Lett. Ed.; (United States)

DOI:https://doi.org/10.1086/184619· OSTI ID:5939581

Klapdor, H V; Grotz, K

In recent years the better understanding of the synthesis of heavy elements by the r-process and the investigation of globular clusters led to a larger age of the universe of > or approx. =17 x 10/sup 9/ yr. It is discussed in this Letter that with the assumption of inflationary expansion at the beginning of the evolution of the universe such a number leads to a nonvanishing cosmological constant ..lambda.. = (4.7--19) x 10/sup -57/ cm/sup -2/ in the Friedmann equation corresponding to an energy density of the vacuum of rho/sub v/ = (2.5--10) x 10/sup -30/ g cm/sup -3/. Such a model leads to stringent limits on the amount of dark matter and especially on the neutrino mass.

• Research Organization: Max-Planck-Institut fuer Kernphysik, Heidelberg
• OSTI ID: 5939581
• Journal Information: Astrophys. J., Lett. Ed.; (United States), Vol. 301:2
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMOLOGY
NUCLEOSYNTHESIS
UNIVERSE
AGE ESTIMATION
ENERGY DENSITY
COSMIC NEUTRINOS
COSMOLOGICAL CONSTANT
COSMOLOGICAL MODELS
DENSITY
HUBBLE EFFECT
MASS DISTRIBUTION
MISSING MASS
STAR CLUSTERS
THEORETICAL DATA
COSMIC RADIATION
DATA
DISTRIBUTION
ELEMENTARY PARTICLES
FERMIONS
INFORMATION
IONIZING RADIATIONS
LEPTONS
MASS
MASSLESS PARTICLES
MATHEMATICAL MODELS
NEUTRINOS
NUMERICAL DATA
PHYSICAL PROPERTIES
RADIATIONS
SPATIAL DISTRIBUTION
SYNTHESIS
640106* - Astrophysics & Cosmology- Cosmology