Constraints on universe models with cosmological constant from cosmic microwave background anisotropy

Journal Article · Sat Dec 01 00:00:00 EST 1990 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/169497· OSTI ID:6257382

Sugiyama, Naoshi; Gouda, Naoteru; Sasaki, Misao ^[1]

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1. Kyoto Univ. (Japan) Kyoto Univ., Uji (Japan)

Thorough numerical calculations of the fluctuations in the cosmic microwave background radiation using the gauge-invariant formalism are carried out for various cosmological models with the cosmological constant. It is shown that a spatially flat cold dark matter-dominated universe of Omega(0) = 0.1 to about 0.4 and H(0) = 50 to about 100 km/s per Mpc with adiabatic perturbations has the possibility of giving the final answer to cosmological puzzles. It is also found that the introduction of the cosmological constant may revive pure baryonic universe models. 33 refs.

• OSTI ID: 6257382
• Journal Information: Astrophysical Journal; (USA), Vol. 365; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMOLOGICAL MODELS
NUMERICAL ANALYSIS
ANISOTROPY
BARYONS
COSMOLOGICAL CONSTANT
COSMOLOGY
GAUGE INVARIANCE
LIMITING VALUES
NONLUMINOUS MATTER
PERTURBATION THEORY
RELICT RADIATION
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
FERMIONS
HADRONS
INVARIANCE PRINCIPLES
MATHEMATICAL MODELS
MATHEMATICS
MICROWAVE RADIATION
RADIATIONS
640106* - Astrophysics & Cosmology- Cosmology