Constraints on Universe Models with Cosmological Constant from Cosmic Microwave Background Anisotropy
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.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- December 1990
- DOI:
- 10.1086/169497
- Bibcode:
- 1990ApJ...365..432S
- Keywords:
-
- Background Radiation;
- Cosmic Rays;
- Cosmology;
- Dark Matter;
- Microwaves;
- Baryons;
- Formalism;
- Numerical Analysis;
- Astrophysics;
- COSMIC BACKGROUND RADIATION;
- COSMOLOGY;
- DARK MATTER