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Title:
Constraints on universe models with cosmological constant from cosmic microwave background anisotropy
Authors:
Sugiyama, Naoshi; Gouda, Naoteru; Sasaki, Misao
Affiliation:
AA(Kyoto University, Japan), AB(Kyoto University, Japan), AC(Kyoto University, Uji, Japan)
Publication:
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 365, Dec. 20, 1990, p. 432-438. Research supported by the Soryuushi Shogakkai Foundation. (ApJ Homepage)
Publication Date:
12/1990
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
Background Radiation, Cosmic Rays, Cosmology, Dark Matter, Microwaves, Baryons, Formalism, Numerical Analysis
DOI:
10.1086/169497
Bibliographic Code:
1990ApJ...365..432S

Abstract

Thorough numerical calculations of the fluctuations in the cosmic microwave background radiation using the gage-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.

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