NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
The Atacama Cosmology Telescope: Two-Season ACTPol Spectra and ParametersWe present the temperature and polarization angular power spectra measuredby the Atacama Cosmology Telescope Polarimeter (ACTPol). We analyze night-time datacollected during 2013-14 using two detector arrays at 149 GHz, from 548 deg(exp. 2) of sky onthe celestial equator. We use these spectra, and the spectra measured with the MBAC camera on ACT from 2008-10, in combination with Planck and WMAP data to estimate cosmological parameters from the temperature, polarization, and temperature-polarization cross-correlations. We find the new ACTPol data to be consistent with the CDM model. The ACTPol temperature-polarization cross-spectrum now provides stronger constraints on multiple parameters than the ACTPol temperature spectrum, including the baryon density, the acoustic peak angular scale, and the derived Hubble constant. The new ACTPol dataprovide information on damping tail parameters. The joint uncertainty on the number of neutrino species and the primordial helium fraction is reduced by 20% when adding ACTPol to Planck temperature data alone.
Document ID
20170007345
Document Type
Reprint (Version printed in journal)
Authors
Louis, Thibaut (Paris VI Univ. France)
Grace, Emily (Princeton Univ. Princeton, NJ, United States)
Hasselfield, Matthew (Pennsylvania State Univ. University Park, PA, United States)
Lungu, Marius (Pennsylvania Univ. Philadelphia, PA, United States)
Maurin, Loic (Pontificia Univ. Catolica de Chile Santiago, Chile)
Addison, Graeme E. (Johns Hopkins Univ. Baltimore, MD, United States)
Adem Peter A. R. (Cardiff Univ. United Kingdom)
Aiola, Simone (Princeton Univ. Princeton, NJ, United States)
Allison, Rupert (Oxford Univ. Oxford, United Kingdom)
Amiri, Mandana (British Columbia Univ. Vancouver, British Columbia, Canada)
Angile, Elio (Pennsylvania Univ. Philadelphia, PA, United States)
Battaglia, Nicholas (Princeton Univ. Princeton, NJ, United States)
Beall, James A. (National Inst. of Standards and Technology Boulder, CO, United States)
De Bernardis, Francesco (Cornell Univ. Ithaca, NY, United States)
Bond, J. Richard (Toronto Univ. Ontario, Canada)
Britton, Joe (National Inst. of Standards and Technology Boulder, CO, United States)
Calabrese, Erminia (Oxford Univ. Oxford, United Kingdom)
Cho, Hsiao-mei (National Inst. of Standards and Technology Boulder, CO, United States)
Choi, Steve K. (Princeton Univ. Princeton, NJ, United States)
Coughlin, Kevin (Michigan Univ. Ann Arbor, MI, United States)
Crichton, Devin (Johns Hopkins Univ. Baltimore, MD, United States)
Crowley, Kevin (Princeton Univ. Princeton, NJ, United States)
Datta, Rahul (Michigan Univ. Ann Arbor, MI, United States)
Devlin, Mark J. (Pennsylvania Univ. Philadelphia, PA, United States)
Dicker, Simon R. (Pennsylvania Univ. Philadelphia, PA, United States)
Dunkley, Joanna (Oxford Univ. Oxford, United Kingdom)
Dunner, Rolando (Pontificia Univ. Catolica de Chile Santiago, Chile)
Ferraro, Simone (California Univ. Berkeley, CA, United States)
Fox, Anna E. (National Inst. of Standards and Technology Boulder, CO, United States)
Gallardo, Patricio (Cornell Univ. Ithaca, NY, United States)
Gralla, Megan (Arizona Univ. Tucson, AZ, United States)
Halpern, Mark (British Columbia Univ. Vancouver, British Columbia, Canada)
Henderson, Shawn (Cornell Univ. Ithaca, NY, United States)
Hill, J. Colin (Columbia Univ. New York, NY, United States)
Hilton, Gene C. (National Inst. of Standards and Technology Boulder, CO, United States)
Hilton, Matt (KwaZulu-Natal Univ. Durban, South Africa)
Hincks, Adam D. (British Columbia Univ. Vancouver, British Columbia, Canada)
Hlozek, Renee (Toronto Univ. Ontario, Canada)
Ho, S. P. Patty (Princeton Univ. Princeton, NJ, United States)
Huang, Zhiqi (Toronto Univ. Ontario, Canada)
Hubmayr, Johannes (National Inst. of Standards and Technology Boulder, CO, United States)
Huffenberger, Kevin M. (Florida State Univ. Tallahassee, FL, United States)
Hughes, John P. (Rutgers - The State Univ. Piscataway, NJ, United States)
Infante, Leopoldo (Pontificia Univ. Catolica de Chile Santiago, Chile)
Irwin, Kent (Stanford Univ. Stanford, CA, United States)
Kasanda, Simon Muya (KwaZulu-Natal Univ. Durban, South Africa)
Klein, Jeff (Pennsylvania Univ. Philadelphia, PA, United States)
Koopman, Brian (Cornell Univ. Ithaca, NY, United States)
Kosowsky, Arthur (Pittsburgh Univ. Pittsburgh, PA, United States)
Li, Dale (National Inst. of Standards and Technology Boulder, CO, United States)
Madhavacheril, Mathew (Stony Brook Univ. Stony Brook, NY, United States)
Marriage, Tobias A. (Johns Hopkins Univ. Baltimore, MD, United States)
McMahon, Jeff (Michigan Univ. Ann Arbor, MI, United States)
Menanteau, Felipe (Illinois Univ. at Urbana-Champaign Urbana, IL, United States)
Moodley, Kavilan (KwaZulu-Natal Univ. Durban, South Africa)
Munson, Charles (Michigan Univ. Ann Arbor, MI, United States)
Naess, Sigurd (Oxford Univ. Oxford, United Kingdom)
Nati, Federico (Pennsylvania Univ. Philadelphia, PA, United States)
Newburgh, Laura (Toronto Univ. Ontario, Canada)
Nibarger, John (National Inst. of Standards and Technology Boulder, CO, United States)
Niemack, Michael D. (Cornell Univ. Ithaca, NY, United States)
Nolta, Michael R. (Toronto Univ. Ontario, Canada)
Nunez, Carolina (Princeton Univ. Princeton, NJ, United States)
Pappas, Christine (Princeton Univ. Princeton, NJ, United States)
Partridge, Bruce (Haverford Coll. PA, United States)
Rojas, Felipe (Pontificia Univ. Catolica de Chile Santiago, Chile)
Schaan, Emmanuel (Princeton Univ. Princeton, NJ, United States)
Schmitt, Benjamin L. (Pennsylvania Univ. Philadelphia, PA, United States)
Sehgal, Neelima (Stony Brook Univ. Stony Brook, NY, United States)
Sherwin, Blake D. (California Univ. Berkeley, CA, United States)
Sievers, Jon (KwaZulu-Natal Univ. Durban, South Africa)
Simon, Sara (Princeton Univ. Princeton, NJ, United States)
Spergel, David N. (Princeton Univ. Princeton, NJ, United States)
Staggs, Suzanne T. (Princeton Univ. Princeton, NJ, United States)
Switzer, Eric R. (Toronto Univ. Ontario, Canada)
Thornton, Robert (Pennsylvania Univ. Philadelphia, PA, United States)
Trac, Hy (Carnegie-Mellon Univ. Pittsburgh, PA, United States)
Treu, Jesse (Princeton Univ. Princeton, NJ, United States)
Tucker, Carole (Cardiff Univ. United Kingdom)
Van Engelen, Alexander (Toronto Univ. Ontario, Canada)
Ward, Jonathan T. (Pennsylvania Univ. Philadelphia, PA, United States)
Wollack, Edward J. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Date Acquired
August 3, 2017
Publication Date
June 15, 2017
Publication Information
Publication: Journal of Cosmology and Astroparticle Physics
Volume: 2017
Issue: 6
Subject Category
Astrophysics
Statistics and Probability
Report/Patent Number
GSFC-E-DAA-TN44626
Funding Number(s)
CONTRACT_GRANT: NNX14AB57G
CONTRACT_GRANT: NSF PHY-1214379
CONTRACT_GRANT: NSF PHY-0855887
CONTRACT_GRANT: NNX13AE56G
CONTRACT_GRANT: NNX12AM32H
CONTRACT_GRANT: NSF AST-1440226
CONTRACT_GRANT: NNX14AB58G
CONTRACT_GRANT: NSF AST-0408698
CONTRACT_GRANT: NSF AST-1312991
CONTRACT_GRANT: NSF AST-0965625
CONTRACT_GRANT: DOE DE-SC0011114
Distribution Limits
Public
Copyright
Other