| タイトル | The Atacama Cosmology Telescope: A Measurement of the Cosmic Microwave Background Power Spectrum at 148 AND 218 GHz from the 2008 Southern Survey |
| 本文（外部サイト） | http://hdl.handle.net/2060/20120002591 |
| 著者（英） | Barrientos, L. Felipe; Bond, J. Richard; Wollack, Ed; Appel, John W.; Dicker, Simon R.; Burger, Bryce; Aguirre, Paula; Marriage, Tobias A.; Fowler, Joseph W.; Hajian, Amir; Essinger-Hileman, Thomas; Fisher, Ryan P.; Ade, Peter A. R.; Devlin, Mark J.; Amiri, Mandana; Brown, Ben; Battistelli, Elia A.; Dunkley, Joanna; Halpern, Mark; Chervenak, Jay; Das, Sudeep; Doriese, W. Bertrand; Hernandez-Monteagudo, Carlos; Hasselfield, Matthew; Duenner, Rolando |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 2010-09-07 |
| 言語 | eng |
| 内容記述 | 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 dearly 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 ACDM 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 2.8(sigma) level. We also detect a low level of Galactic dust in our maps, which demonstrates that we can recover known faint, diffuse signals. |
| NASA分類 | Optics |
| レポートNO | gsfc.ja.5603.2011 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
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