Authors: Farhoudi, M; Shojaie, H

Source: Canadian Journal of Physics, Volume 84, Number 10, October 2006 , pp. 933-944(12)

Publisher: NRC Research Press

Abstract:

A new varying-c cosmological model, constructed using two additional assumptions, which was introduced in our previous work, is briefly reviewed and the dynamic equation of the model is derived distinctly from a semi-Newtonian approach. The results of this model, using a Λ term and an extra energy-momentum tensor, are considered separately. It is shown that the Universe began from a hot Big Bang and expands forever with a constant deceleration parameter regardless of its curvature. Finally, the age, the radius, and the energy content of the Universe are estimated and some discussion about the type of the geometry of the Universe is provided.PACS Nos.: 98.80.Bp, 98.80.Jk

Nous passons en revue la construction d'un modèle cosmologique à c variable, en ajoutant deux hypothèses à un modèle déjà présenté. Nous obtenons l'équation dynamique du modèle sans référence à une approche semi-Newtonienne. Nous considérons à part les résultats du modèle utilisant un terme Λ et un tenseur d'énergie-impulsion additionnel. Ils montrent que l'Univers a commencé dans un Big Bang chaud et que son expansion se fait avec une décélération constante, quelque soit sa courbure. Finalement, nous estimons l'âge, le rayon et le contenu énergétique de l'Univers et discutons son type de géométrie.[Traduit par la Rédaction]

Document Type: Research article

Publication date: 2006-10-01

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