WMAP 5-year constraints on time variation of α and m<sub>e</sub> in a detailed recombination scenario
We study the role of fundamental constants in an updated recombination scenario. We focus on the time variation of the fine structure constant α, and the electron mass m<sub>e</sub> in the early Universe, and put bounds on these quantities by using data from CMB including WMAP 5-yr relea...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2008 |
| País: | Argentina |
| Institución: | Universidad Nacional de La Plata |
| Repositorio: | SEDICI (UNLP) |
| Idioma: | inglés |
| OAI Identifier: | oai:sedici.unlp.edu.ar:10915/93587 |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/93587 |
| Access Level: | acceso abierto |
| Palabra clave: | Astronomía Variation of fundamental constants Cosmic microwave background |
| Sumario: | We study the role of fundamental constants in an updated recombination scenario. We focus on the time variation of the fine structure constant α, and the electron mass m<sub>e</sub> in the early Universe, and put bounds on these quantities by using data from CMB including WMAP 5-yr release and the 2dFGRS power spectrum. We analyze how the constraints are modified when changing the recombination scenario. |
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