A Quasi--Steady State Cosmological Model with Creation of Matter
Abstract
A universe is envisioned in which there was a major creation episode when the mean universal density was about 10 to the -27 g/cu cm. Explicit equations are given for the creation of matter; in a cosmological approximation, these equations lead to expressions for the time-dependence of the cosmological scale factor S(t), but do not entail, as big bang cosmology does, that S(t) tend to zero at some finite time t. The equations therefore possess a universality that is absent from big bang cosmology. Creation occurs when certain conservation equations involving the gradient of a scalar field C(i) are satisfied.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- June 1993
- DOI:
- 10.1086/172761
- Bibcode:
- 1993ApJ...410..437H
- Keywords:
-
- Astronomical Models;
- Cosmology;
- Relic Radiation;
- Anisotropy;
- Computational Astrophysics;
- Galactic Clusters;
- Galactic Nuclei;
- Matter (Physics);
- Astrophysics;
- COSMOLOGY: COSMIC MICROWAVE BACKGROUND;
- COSMOLOGY: THEORY;
- NUCLEAR REACTIONS;
- NUCLEOSYNTHESIS;
- ABUNDANCES