The age problem and growing of structures for open system cosmology
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Redalyc
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Sociedade Brasileira de Física
2001
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| _version_ | 1876478137504628736 |
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| author | M. de Campos |
| author_facet | M. de Campos |
| contents | The age problem and growing of structures for open system cosmology M. de Campos N.A. Tomimura Física, Astronomía y Matemáticas A new equation for the density contrast is derived in the framework of reexamined Newtonian cosmology if we take into account adiabatic matter creation in the universe. The age of the universe and the reach of non linear regime of the density contrast are usually treated separately in the literature and this may leadtocontroversial conclusions regarding the most adequate scenario to describe the universe. We relate the age of the universe and the growing mode of the density contrast by introducing a variable xi that relates both of them, so that both aspects are treated simultaneously. We apply this procedure to the Friedmann type model where the source of particle production is psi = 3nbetaH. 2001 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46413502019 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.3 Vol.31 |
| format | Artículo científico |
| id | redalyc_46413502019 |
| institution | Redalyc |
| language | en |
| publishDate | 2001 |
| publisher | Sociedade Brasileira de Física |
| spellingShingle | The age problem and growing of structures for open system cosmology M. de Campos Física, Astronomía y Matemáticas The age problem and growing of structures for open system cosmology M. de Campos N.A. Tomimura Física, Astronomía y Matemáticas A new equation for the density contrast is derived in the framework of reexamined Newtonian cosmology if we take into account adiabatic matter creation in the universe. The age of the universe and the reach of non linear regime of the density contrast are usually treated separately in the literature and this may leadtocontroversial conclusions regarding the most adequate scenario to describe the universe. We relate the age of the universe and the growing mode of the density contrast by introducing a variable xi that relates both of them, so that both aspects are treated simultaneously. We apply this procedure to the Friedmann type model where the source of particle production is psi = 3nbetaH. 2001 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46413502019 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.3 Vol.31 |
| title | The age problem and growing of structures for open system cosmology |
| topic | Física, Astronomía y Matemáticas |
| url | https://www.redalyc.org/articulo.oa?id=46413502019 |