Efecto de la curvatura espacial del universo en el espectro angular de las anisotropías en la temperatura de la radiación cósmica de fondo
The inflationary paradigm solves the three classic problems of the standard cosmology: the flatness problem, the horizon problem, and the unwanted relics problem. In particular the flatness problem is solved by explaining how the relative contribution of the spatial curvature of the Universe to the...
| Autores: | , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2007 |
| País: | Colombia |
| Institución: | Universidad Industrial de Santander |
| Repositorio: | Repositorio UIS |
| Idioma: | español |
| OAI Identifier: | oai:noesis.uis.edu.co:20.500.14071/7067 |
| Acceso en línea: | https://revistas.uis.edu.co/index.php/revistaintegracion/article/view/308 https://noesis.uis.edu.co/handle/20.500.14071/7067 |
| Access Level: | acceso abierto |
| Palabra clave: | spatial curvature inflation angular spectrum cosmic microwave background radiation curvatura espacial inflación espectro angular radiación cósmica de fondo |
| Sumario: | The inflationary paradigm solves the three classic problems of the standard cosmology: the flatness problem, the horizon problem, and the unwanted relics problem. In particular the flatness problem is solved by explaining how the relative contribution of the spatial curvature of the Universe to the total energy density decreases exponentially during infla-tion. In addition, the inflationary scenario offers us an efficient mechanism to generate small perturbations in the spatial curvature that would explain the anisotropies in the temperature of the cosmic microwave background radiation (CMB) observed nowadays. The traditional inflationary models that neglect the relative contribution reproduce the recent WMAP observations on the angular spectrum Clof the anisotropies in the temperature of the CMB, but fail in the lowest multipoles where the observations show an unexpected suppression. Such a strange behaviour leads us to propose an analysis of the angular spectrum Cl at large scales (low multipoles) by taking into account the relative contribution, and offer a better adjustment to the observed data, revealing in this way the characteristic topology of our observable Universe. |
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