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https://repositorio.ufba.br/handle/ri/6816
metadata.dc.type: | Artigo de Periódico |
Title: | Exact solutions of Brans-Dicke cosmology and the cosmic coincidence problem |
Other Titles: | Brazilian Journal of Physics |
Authors: | Carneiro, Saulo Montenegro Júnior, A. E. |
metadata.dc.creator: | Carneiro, Saulo Montenegro Júnior, A. E. |
Abstract: | We present some cosmological solutions of Brans-Dicke theory, characterized by a decaying vacuum energy density and by a constant relative matter density. With these features, they shed light on the cosmological constant problems, leading to a presently small vacuum term, and to a constant ratio between the vacuum and matter energy densities. By fixing the only free parameter of our solutions, we obtain cosmological parameters in accordance with observations of the relative matter density, the universe age and redshift-distance relations. |
Publisher: | Sociedade Brasileira de Física |
URI: | http://www.repositorio.ufba.br/ri/handle/ri/6816 |
Issue Date: | Dec-2005 |
Appears in Collections: | Artigo Publicado em Periódico (FIS) |
Files in This Item:
File | Description | Size | Format | |
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Carneiro, S. and Montenegro.pdf | 50,17 kB | Adobe PDF | View/Open |
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