Exact Solutions of Brans-Dicke Cosmology and the Cosmic Coincidence Problem
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| Format: | Artículo científico |
| Language: | en |
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Sociedade Brasileira de Física
2005
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| _version_ | 1876489794844884992 |
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| author | S. Carneiro |
| author_facet | S. Carneiro |
| contents | Exact Solutions of Brans-Dicke Cosmology and the Cosmic Coincidence Problem S. Carneiro A. E. Montenegr Física, Astronomía y Matemáticas We present some cosmological solutions of Brans-Dicke theory, characterized by a decaying vacuum energydensity and by a constant relative matter density. With these features, they shed light on the cosmologicalconstant problems, leading to a presently small vacuum term, and to a constant ratio between the vacuum andmatter energy densities. By fixing the only free parameter of our solutions, we obtain cosmological parametersin accordance with observations of the relative matter density, the universe age and redshift-distance relations 2005 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46435709 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.4B Vol.35 |
| format | Artículo científico |
| id | redalyc_46435709 |
| institution | Redalyc |
| language | en |
| publishDate | 2005 |
| publisher | Sociedade Brasileira de Física |
| spellingShingle | Exact Solutions of Brans-Dicke Cosmology and the Cosmic Coincidence Problem S. Carneiro Física, Astronomía y Matemáticas Exact Solutions of Brans-Dicke Cosmology and the Cosmic Coincidence Problem S. Carneiro A. E. Montenegr Física, Astronomía y Matemáticas We present some cosmological solutions of Brans-Dicke theory, characterized by a decaying vacuum energydensity and by a constant relative matter density. With these features, they shed light on the cosmologicalconstant problems, leading to a presently small vacuum term, and to a constant ratio between the vacuum andmatter energy densities. By fixing the only free parameter of our solutions, we obtain cosmological parametersin accordance with observations of the relative matter density, the universe age and redshift-distance relations 2005 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46435709 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.4B Vol.35 |
| title | Exact Solutions of Brans-Dicke Cosmology and the Cosmic Coincidence Problem |
| topic | Física, Astronomía y Matemáticas |
| url | https://www.redalyc.org/articulo.oa?id=46435709 |