Exact solutions of Brans-Dicke cosmology and the cosmic coincidence problem
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2005 |
| Outros Autores: | |
| Tipo de documento: | Artigo |
| Idioma: | eng |
| Título da fonte: | Repositório Institucional da UFBA |
| Texto Completo: | http://www.repositorio.ufba.br/ri/handle/ri/6816 |
Resumo: | p.1052-1054 |
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Carneiro, SauloMontenegro Júnior, A. E.Carneiro, SauloMontenegro Júnior, A. E.2012-09-26T14:07:30Z2012-09-26T14:07:30Z2005-120103-9733http://www.repositorio.ufba.br/ri/handle/ri/6816v. 35, n. 4bp.1052-1054We 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.Submitted by Texeira Ana (atanateixeira@gmail.com) on 2012-09-26T14:07:30Z No. of bitstreams: 1 Carneiro, S. and Montenegro.pdf: 51371 bytes, checksum: 76abc3846d87e4a560bf87f959ae9b8d (MD5)Made available in DSpace on 2012-09-26T14:07:30Z (GMT). No. of bitstreams: 1 Carneiro, S. and Montenegro.pdf: 51371 bytes, checksum: 76abc3846d87e4a560bf87f959ae9b8d (MD5) Previous issue date: 2005-12São PauloSociedade Brasileira de Físicahttp://dx.doi.org/10.1590/S0103-97332005000700009reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAExact solutions of Brans-Dicke cosmology and the cosmic coincidence problemBrazilian Journal of Physicsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleenginfo:eu-repo/semantics/openAccessORIGINALCarneiro, S. and Montenegro.pdfCarneiro, S. and Montenegro.pdfapplication/pdf51371https://repositorio.ufba.br/bitstream/ri/6816/1/Carneiro%2c%20S.%20and%20Montenegro.pdf76abc3846d87e4a560bf87f959ae9b8dMD51LICENSElicense.txtlicense.txttext/plain1762https://repositorio.ufba.br/bitstream/ri/6816/2/license.txt1b89a9a0548218172d7c829f87a0eab9MD52TEXTCarneiro, S. and Montenegro.pdf.txtCarneiro, S. and Montenegro.pdf.txtExtracted texttext/plain11768https://repositorio.ufba.br/bitstream/ri/6816/3/Carneiro%2c%20S.%20and%20Montenegro.pdf.txt8d9288a6680005d57912474147f48df6MD53ri/68162022-07-05 14:03:48.522oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-07-05T17:03:48Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false |
| dc.title.pt_BR.fl_str_mv |
Exact solutions of Brans-Dicke cosmology and the cosmic coincidence problem |
| dc.title.alternative.pt_BR.fl_str_mv |
Brazilian Journal of Physics |
| title |
Exact solutions of Brans-Dicke cosmology and the cosmic coincidence problem |
| spellingShingle |
Exact solutions of Brans-Dicke cosmology and the cosmic coincidence problem Carneiro, Saulo |
| title_short |
Exact solutions of Brans-Dicke cosmology and the cosmic coincidence problem |
| title_full |
Exact solutions of Brans-Dicke cosmology and the cosmic coincidence problem |
| title_fullStr |
Exact solutions of Brans-Dicke cosmology and the cosmic coincidence problem |
| title_full_unstemmed |
Exact solutions of Brans-Dicke cosmology and the cosmic coincidence problem |
| title_sort |
Exact solutions of Brans-Dicke cosmology and the cosmic coincidence problem |
| author |
Carneiro, Saulo |
| author_facet |
Carneiro, Saulo Montenegro Júnior, A. E. |
| author_role |
author |
| author2 |
Montenegro Júnior, A. E. |
| author2_role |
author |
| dc.contributor.author.fl_str_mv |
Carneiro, Saulo Montenegro Júnior, A. E. Carneiro, Saulo Montenegro Júnior, A. E. |
| description |
p.1052-1054 |
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2005 |
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2005-12 |
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2012-09-26T14:07:30Z |
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2012-09-26T14:07:30Z |
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info:eu-repo/semantics/publishedVersion |
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http://www.repositorio.ufba.br/ri/handle/ri/6816 |
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0103-9733 |
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v. 35, n. 4b |
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0103-9733 v. 35, n. 4b |
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http://www.repositorio.ufba.br/ri/handle/ri/6816 |
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eng |
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Sociedade Brasileira de Física |
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Sociedade Brasileira de Física |
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http://dx.doi.org/10.1590/S0103-97332005000700009 |
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