Light Geodesics on Uniform Model Universes
Abstract
In the present paper we have obtained the light geodesics, both in the stationary and in the non-stationary uniform model universe. We have found a peculiar exact solution of the differential equations system. In the non-stationary models we have worked with some categories of models in which it is possible to establish an analytic relation for the scale factor, R(1). The solution we have obtained allowed us to draw some fundamental conclusions in connection with the flowing speed of time on the geodesics.
- Publication:
-
Romanian Astronomical Journal
- Pub Date:
- 1991
- Bibcode:
- 1991RoAJ....1...25P
- Keywords:
-
- LIGHT GEODESICS;
- MODELS OF THE UNIVERSE;
- COSMOLOGY