Authors
Joanna Dunkley, R Hlozek, J Sievers, V Acquaviva, Peter AR Ade, P Aguirre, M Amiri, JW Appel, LF Barrientos, ES Battistelli, JR Bond, B Brown, B Burger, J Chervenak, S Das, MJ Devlin, SR Dicker, W Bertrand Doriese, R Dünner, T Essinger-Hileman, RP Fisher, JW Fowler, A Hajian, M Halpern, M Hasselfield, C Hernández-Monteagudo, GC Hilton, M Hilton, AD Hincks, KM Huffenberger, DH Hughes, JP Hughes, L Infante, KD Irwin, JB Juin, M Kaul, J Klein, A Kosowsky, JM Lau, M Limon, YT Lin, RH Lupton, TA Marriage, D Marsden, P Mauskopf, F Menanteau, K Moodley, H Moseley, CB Netterfield, MD Niemack, MR Nolta, LA Page, L Parker, B Partridge, B Reid, N Sehgal, B Sherwin, DN Spergel, ST Staggs, DS Swetz, ER Switzer, R Thornton, H Trac, C Tucker, R Warne, E Wollack, Y Zhao
Publication date
2011/9/6
Journal
The Astrophysical Journal
Volume
739
Issue
1
Pages
52
Publisher
IOP Publishing
Description
We present cosmological parameters derived from the angular power spectrum of the cosmic microwave background (CMB) radiation observed at 148 GHz and 218 GHz over 296 deg 2 with the Atacama Cosmology Telescope (ACT) during its 2008 season. ACT measures fluctuations at scales 500< ℓ< 10, 000. We fit a model for the lensed CMB, Sunyaev–Zel'dovich (SZ), and foreground contribution to the 148 GHz and 218 GHz power spectra, including thermal and kinetic SZ, Poisson power from radio and infrared point sources, and clustered power from infrared point sources. At ℓ= 3000, about half the power at 148 GHz comes from primary CMB after masking bright radio sources. The power from thermal and kinetic SZ is estimated to be
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Scholar articles
J Dunkley, R Hlozek, J Sievers, V Acquaviva, PAR Ade… - The Astrophysical Journal, 2011