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

In view of new experimental results that strongly suggest a non-zero cosmological constant, it becomes interesting to revisit the Friedmann-Lemaitre model of evolution of a universe with cosmological constant and radiation pressure. In this paper, we discuss the explicit solutions for that model, an...

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Detalles Bibliográficos
Autores principales: Coquereaux, Robert, Grossmann, Alex
Lenguaje:eng
Publicado: 2000
Materias:
Astrophysics and Astronomy
Acceso en línea:http://cds.cern.ch/record/484556
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author Coquereaux, Robert
Grossmann, Alex
author_facet Coquereaux, Robert
Grossmann, Alex
author_sort Coquereaux, Robert
collection CERN
description In view of new experimental results that strongly suggest a non-zero cosmological constant, it becomes interesting to revisit the Friedmann-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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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2000
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spelling cern-4845562023-03-14T20:19:08Zhttp://cds.cern.ch/record/484556engCoquereaux, RobertGrossmann, AlexLarge scale geometry and evolution of a universe with radiation pressure and cosmological constantAstrophysics and AstronomyIn view of new experimental results that strongly suggest a non-zero cosmological constant, it becomes interesting to revisit the Friedmann-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.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.CERN-TH-2000-180CPT-2000-P4109astro-ph/0101369CERN-TH-2000-180CPT-2000-P-4109oai:cds.cern.ch:4845562000-01-22
spellingShingle Astrophysics and Astronomy
Coquereaux, Robert
Grossmann, Alex
Large scale geometry and evolution of a universe with radiation pressure and cosmological constant
title Large scale geometry and evolution of a universe with radiation pressure and cosmological constant
title_full Large scale geometry and evolution of a universe with radiation pressure and cosmological constant
title_fullStr Large scale geometry and evolution of a universe with radiation pressure and cosmological constant
title_full_unstemmed Large scale geometry and evolution of a universe with radiation pressure and cosmological constant
title_short Large scale geometry and evolution of a universe with radiation pressure and cosmological constant
title_sort large scale geometry and evolution of a universe with radiation pressure and cosmological constant
topic Astrophysics and Astronomy
url http://cds.cern.ch/record/484556
work_keys_str_mv AT coquereauxrobert largescalegeometryandevolutionofauniversewithradiationpressureandcosmologicalconstant
AT grossmannalex largescalegeometryandevolutionofauniversewithradiationpressureandcosmologicalconstant

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