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http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/1810| The atacama cosmology telescope: a measurement of the cosmic microwave background power spectrum at 148 and 218 Ghz from the 2008 southern survey | |
| David Hughes | |
| Acceso Abierto | |
| Atribución-NoComercial-SinDerivadas | |
| Cosmic background radiation Cosmology: observations | |
| We present measurements of the cosmic microwave background (CMB) power spectrum made by the Atacama Cosmology Telescope at 148 GHz and 218 GHz, as well as the cross-frequency spectrum between the two channels. Our results clearly show the second through the seventh acoustic peaks in the CMB power spectrum. The measurements of these higher-order peaks provide an additional test of the 𝛬CDM cosmological model. At 𝓁 > 3000, we detect power in excess of the primary anisotropy spectrum of the CMB. At lower multipoles 500 < 𝓁 < 3000, we find evidence for gravitational lensing of the CMB in the power spectrum at the 2.8σ level. We also detect a low level of Galactic dust in our maps, which demonstrates that we can recover known faint, diffuse signals. | |
| The Astrophysical Journal | |
| 01-03-2011 | |
| Artículo | |
| Inglés | |
| Estudiantes Investigadores Público en general | |
| Das, Sudeep, et al., (2011), The atacama cosmology telescope: a measurement of the cosmic microwave background power spectrum at 148 and 218 Ghz from the 2008 southern survey, The Astrophysical Journal, Vol.729:(62):1-16 | |
| ASTRONOMÍA Y ASTROFÍSICA | |
| Versión aceptada | |
| acceptedVersion - Versión aceptada | |
| Aparece en las colecciones: | Artículos de Astrofísica |
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