Large scale geometry and evolution of a universe with radiation pressure and cosmological constant

Details Large scale geometry and evolution of a universe with radiation pressure and cosmological constant Large scale geometry and evolution of a universe with radiation pressure and cosmological constant

2001-01-22

arxiv.org/abs/astro-ph/0101369v3

Astronomy and Astrophysics

Astrophysics

31 pages, Latex, 9 eps figures. Revised version: Introduction was extended and we have added an application to cosmology of th

Scientific paper

In view of new experimental results that strongly suggest a non-zero cosmological constant, it becomes interesting to revisit the Friedman-Lemaitre model of evolution of a universe with cosmological constant and radiation pressure. In this paper, we discuss the explicit solutions for that model and perform numerical explorations for reasonable values of cosmological parameters. We also analyse the behaviour of redshifts in such models and the description of ``very large scale geometrical features'' when analysed by distant observers.

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