The Atacama Cosmology Telescope: CMB Polarization at \(200<\ell<9000\)

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 resol...

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Bibliographic Details
Published in:arXiv.org 2014-09
Main Authors: Naess, Sigurd, Hasselfield, Matthew, McMahon, Jeff, Niemack, Michael D, Addison, Graeme E, Ade, Peter A R, Allison, Rupert, Amiri, Mandana, Battaglia, Nick, Beall, James A, de Bernardis, Francesco, Bond, J Richard, Britton, Joe, Calabrese, Erminia, Hsiao-mei, Cho, Coughlin, Kevin, Crichton, Devin, Das, Sudeep, Datta, Rahul, Devlin, Mark J, Dicker, Simon R, Dunkley, Joanna, Dünner, Rolando, Fowler, Joseph W, Fox, Anna E, Gallardo, Patricio, Grace, Emily, Gralla, Megan, Hajian, Amir, Halpern, Mark, Henderson, Shawn, Hill, J Colin, Hilton, Gene C, Hilton, Matt, Hincks, Adam D, Hlozek, Renée, Ho, Patty, Hubmayr, Johannes, Huffenberger, Kevin M, Hughes, John P, Infante, Leopoldo, Irwin, Kent, Jackson, Rebecca, Simon Muya Kasanda, Klein, Jeff, Koopman, Brian, Kosowsky, Arthur, Li, Dale, Thibaut Louis, Lungu, Marius, Madhavacheril, Mathew, Marriage, Tobias A, Maurin, Loïc, Menanteau, Felipe, Moodley, Kavilan, Munson, Charles, Newburgh, Laura, Nibarger, John, Nolta, Michael R, Page, Lyman A, Pappas, Christine, Partridge, Bruce, Rojas, Felipe, Schmitt, Benjamin, Sehgal, Neelima, Sherwin, Blake D, Sievers, Jon, Simon, Sara, Spergel, David N, Staggs, Suzanne T, Switzer, Eric R, Thornton, Robert, Trac, Hy, Tucker, Carole, Uehara, Masao, Alexander Van Engelen, Ward, Jon, Wollack, Edward J
Format: Article
Language:English
Subjects:
Acoustic noise
Angular resolution
Astronomical models
Big Bang theory
Cosmic microwave background
Cosmology
Crab nebula
Gaussian beams (optics)
Masking
Microwave frequencies
Noise levels
Point sources
Polarimeters
Polarization
Power spectra
Thermal energy
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Summary: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 \(\mu\)K-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
ISSN:2331-8422
DOI:10.48550/arxiv.1405.5524