Constraints on cold dark matter-dominated universes from cosmic background radiation anisotropies

Journal Article · Sun Jul 01 00:00:00 EDT 1990 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/168960· OSTI ID:6596241

Fukugita, M; Sugiyama, N; Umemura, M ^[1]

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1. Kyoto Univ. (Japan) National Astronomical Observatory, Tokyo (Japan)

The temperature fluctuations in the cosmic background radiation are numerically investigated for universes dominated by cold dark matter. It is shown that the limit on temperature fluctuations measured by Readhead et al. (1989) at 7.15 arcmin yields the strongest constraint on such universes. It is concluded that a low-density universe with Omega(0) less than about 0.3 is viable only when the Hubble constant takes a value of 80-100 km/s/Mpc. It is a matter of great significance whether such a value of the Hubble constant is consistent with the age inferred from globular clusters and nucleochronology, which is greater than about 12 Gyr. 38 refs.

• OSTI ID: 6596241
• Journal Information: Astrophysical Journal; (USA), Vol. 358; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
RELICT RADIATION
ANISOTROPY
UNIVERSE
NONLUMINOUS MATTER
BACKGROUND RADIATION
COSMOLOGY
DENSITY
TEMPERATURE DISTRIBUTION
ELECTROMAGNETIC RADIATION
MICROWAVE RADIATION
PHYSICAL PROPERTIES
RADIATIONS
640106* - Astrophysics & Cosmology- Cosmology