An Empirical Approach to Cosmology
Abstract
A two-component model of the universe is proposed, based on the observations of discrete extragalactic sources and the microwave background radiation. The large scale dynamics of the universe is determined by the radiation component and it leads to a characteristic size of the universe ∼6×105 Mpc and an age ∼1012 yr. The second component, that of matter, occurs in discrete sources which group together in super-superclusters of characteristic size ∼6×103 Mpc and age ∼1010 yr. It is suggested that our Galaxy belongs to one of these super-superclusters and that observations of discrete sources are confined to this unit. A reasonable agreement with the cosmological tests is obtained on the assumption that the geometry within a typical super-supercluster is Euclidean and that the redshifts of galaxies arise from Doppler effect due to motions originating in a local explosion which gave birth to the super-supercluster. Further observational checks on this model are proposed.
- Publication:
-
Astrophysics and Space Science
- Pub Date:
- January 1981
- DOI:
- 10.1007/BF00642086
- Bibcode:
- 1981Ap&SS..74..111N
- Keywords:
-
- Astronomical Models;
- Cosmology;
- Galactic Structure;
- Universe;
- Background Radiation;
- Milky Way Galaxy;
- Red Shift;
- Relativity;
- Astrophysics;
- Radiation;
- Microwave;
- Reasonable Agreement;
- Characteristic Size;
- Doppler Effect