http://arxiv.org/abs/1908.08477
We use six tilted spatially-flat and untilted non-flat dark energy cosmological models in analyses of South Pole Telescope polarization (SPTpol) cosmic microwave background (CMB) data, alone and in combination with Planck 2015 CMB data and non-CMB data. All best-fit cosmological models have CMB anisotropy power spectra that do not provide good fits to the SPTpol data, differing at the 2 to 3$\sigma$ level. In all models, there is no significant difference between the model that best fits the SPTpol data and the one that best fits the Planck CMB and non-CMB data. When the smaller angular scale SPTpol data are used jointly with either the Planck data alone or with the Planck CMB and the non-CMB data to constrain untilted non-flat models, spatially-closed models remain favored over their corresponding flat limits. When used in conjunction with Planck data, non-CMB data (baryon acoustic oscillation measurements in particular, from six experiments) have significantly more constraining power than the SPTpol data.
C. Park and B. Ratra
Fri, 23 Aug 19
7/57
Comments: 24 pages, 14 figures, 6 tables
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