Authors
Sigurd Naess, Matthew Hasselfield, Jeff McMahon, Michael D Niemack, Graeme E Addison, Peter AR Ade, Rupert Allison, Mandana Amiri, Nick Battaglia, James A Beall, Francesco De Bernardis, J Richard Bond, Joe Britton, Erminia Calabrese, Hsiao-mei Cho, Kevin Coughlin, Devin Crichton, Sudeep Das, Rahul Datta, Mark J Devlin, Simon R Dicker, Joanna Dunkley, Rolando Duenner, Joseph W Fowler, Anna E Fox, Patricio Gallardo, Emily Grace, Megan Gralla, Amir Hajian, Mark Halpern, Shawn Henderson, J Colin Hill, Gene C Hilton, Matt Hilton, Adam D Hincks, Renee Hlozek, Patty Ho, Johannes Hubmayr, Kevin M Huffenberger, John P Hughes, Leopoldo Infante, Kent Irwin, Rebecca Jackson, Simon Muya Kasanda, Jeff Klein, Brian Koopman, Arthur Kosowsky, Dale Li, Thibaut Louis, Marius Lungu, Mathew Madhavacheril, Tobias A Marriage, Loic Maurin, Felipe Menanteau, Kavilan Moodley, Charles Munson, Laura Newburgh, John Nibarger, Michael R Nolta, Lyman A Page, Christine Pappas, Bruce Partridge, Felipe Rojas, Benjamin L Schmitt, Neelima Sehgal, Blake D Sherwin, Jon Sievers, Sara Simon, David N Spergel, Suzanne T Staggs, Eric R Switzer, Robert Thornton, Hy Trac, Carole Tucker, Masao Uehara, Alexander Van Engelen, Jonathan T Ward, Edward J Wollack
Publication date
2014/10/3
Journal
Journal of Cosmology and Astroparticle Physics
Volume
2014
Issue
10
Pages
007
Publisher
IOP Publishing
Description
We report on measurements of the cosmic microwave background (CMB) and celestial polarization at 146 GHz made with the Atacama Cosmology Telescope Polarimeter (ACTPol) in its first three months of observing. Four regions of sky covering a total of 270 square degrees were mapped with an angular resolution of 1.3'. The map noise levels in the four regions are between 11 and 17 μK-arcmin. We present TT, TE, EE, TB, EB, and BB power spectra from three of these regions. The observed E-mode polarization power spectrum, displaying six acoustic peaks in the range 200< ℓ< 3000, is an excellent fit to the prediction of the best-fit cosmological models from WMAP9+ ACT and Planck data. The polarization power spectrum, which mainly reflects primordial plasma velocity perturbations, provides an independent determination of cosmological parameters consistent with those based on the temperature power …
Total citations
Scholar articles
S Naess, M Hasselfield, J McMahon, MD Niemack… - Journal of Cosmology and Astroparticle Physics, 2014
PA Libby - AIAA Journal, 1967