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

Autor:	Coquereaux, Robert, Grossmann, Alex
Jazyk:	angličtina
Rok vydání:	2000
Předmět:	High Energy Physics - Theory General Relativity and Quantum Cosmology Astrophysics and Astronomy High Energy Physics - Theory (hep-th) Astrophysics (astro-ph) FOS: Physical sciences Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics
Popis:	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. Comment: 31 pages, Latex, 9 eps figures. Revised version: Introduction was extended and we have added an application to cosmology of the duplication formula for the elliptic Weierstrass P function
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2807bace0fa11b2b24d2ce1205750572 http://cds.cern.ch/record/484556 Zobrazit plný text záznamu