Parameter Estimation From Improved Measurements of the Cosmic Microwave Background From QUaD

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Parameter Estimation From Improved Measurements of the Cosmic Microwave Background From QUaD

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Title: Parameter Estimation From Improved Measurements of the Cosmic Microwave Background From QUaD
Author: Gupta, Sujata; Ade, Peter; Bock, James; Bowden, Melanie; Brown, Michael L.; Cahill, Gary; Castro, Patricia G.; Church, Sarah; Culverhouse, Thomas; Friedman, Robert B.; Ganga, Ken; Gear, Walter K.; Hinderks, James; Kovac, John M; Lange, Andrew E.; Leitch, Erik; Melhuish, Simon J.; Memari, Yasin; Murphy, J. Anthony; Orlando, Angiola; O'Sullivan, Creidhe; Piccirillo, Lucio; Pryke, Clem; Rajguru, Nutan; Rusholme, Ben; Schwarz, Robert; Taylor, Andrew N.; Thompson, Keith L.; Turner, Abigail H.; Wu, Ed Y. S.; Zemcov, Michael B.

Note: Order does not necessarily reflect citation order of authors.

Citation: Gupta, Sujata, Peter Ade, James Bock, Melanie Bowden, Michael L. Brown, Gary Cahill, Patricia G. Castro, and et al. 2010. Parameter estimation from improved measurements of the cosmic microwave background from QUaD. The Astrophysical Journal 716, no. 2: 1040-1046.
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Abstract: We evaluate the contribution of cosmic microwave background (CMB) polarization spectra to cosmological parameter constraints. We produce cosmological parameters using high-quality CMB polarization data from the ground-based QUaD experiment and demonstrate for the majority of parameters that there is significant improvement on the constraints obtained from satellite CMB polarization data. We split a multi-experiment CMB data set into temperature and polarization subsets and show that the best-fit confidence regions for the ΛCDM six-parameter cosmological model are consistent with each other, and that polarization data reduces the confidence regions on all parameters. We provide the best limits on parameters from QUaD EE/BB polarization data and we find best-fit parameters from the multi-experiment CMB data set using the optimal pivot scale of k\(_{p}\) = 0.013 Mpc\(^{–1}\) to be {h\(^{2}\)Ω\(_{c}\), h\(^{2}\)Ω\(_{b}\), H\(_{0}\), A\(_{s}\), n\(_{s}\), τ} = {0.113, 0.0224, 70.6, 2.29 × 10\(^{-9}\), 0.960, 0.086}.
Published Version: doi:10.1088/0004-637X/716/2/1040
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:11129147
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