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Testing Cosmology with Cosmic Sound Waves
WMAP observations have accurately determined the position of the first two peaks and dips in the CMB temperature power spectrum. These encode information on the ratio of the distance to the last scattering surface to the sound horizon at decoupling. However pre-recombination processes can contaminat...
| Autores principales: | , |
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| Lenguaje: | eng |
| Publicado: |
2007
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1103/PhysRevD.77.103507 http://cds.cern.ch/record/1071534 |