The atacama cosmology telescope: Temperature and gravitational lensing power spectrum measurements from three seasons of data
- Das, Sudeep
- Louis, Thibaut
- Nolta, Michael R.
- Addison, Graeme E.
- BATTISTELLI, Elia Stefano
- Bond, J. Richard
- Calabrese, Erminia
- Crichton, Devin
- Devlin, Mark J.
- Dicker, Simon
- Dunkley, Joanna
- Dünner, Rolando
- Fowler, Joseph W.
- Gralla, Megan
- Hajian, Amir
- Halpern, Mark
- Hasselfield, Matthew
- Hilton, Matt
- Hincks, Adam D.
- Hlozek, Renée
- Huffenberger, Kevin M.
- Hughes, John P.
- Irwin, Kent D.
- Kosowsky, Arthur
- Lupton, Robert H.
- Marriage, Tobias A.
- Marsden, Danica
- Menanteau, Felipe
- Moodley, Kavilan
- Niemack, Michael D.
- Page, Lyman A.
- Partridge, Bruce
- Reese, Erik D.
- Schmitt, Benjamin L.
- Sehgal, Neelima
- Sherwin, Blake D.
- Sievers, Jonathan L.
- Spergel, David N.
- Staggs, Suzanne T.
- Swetz, Daniel S.
- Switzer, Eric R.
- Thornton, Robert
- Trac, Hy
- Wollack, Ed
DOIAbstract
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...
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