Using SPT polarization, Planck 2015, and non-CMB data to constrain tilted spatially-flat and untilted nonflat Λ CDM , XCDM, and ϕ CDM dark energy inflation cosmologies
作者： Chan-Gyung Park , Bharat Ratra
DOI: 10.1103/PHYSREVD.101.083508
关键词:
摘要: 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 combination with Planck 2015 CMB data non-CMB namely, the Pantheon Type Ia supernovae apparent magnitudes, a collection baryon acoustic oscillation points, Hubble parameter measurements, growth rates. Although that best-fit do not provide good fits to SPTpol $\chi^2$'s exceeding expected value, given uncertainties, each model constraints from are largely mutually consistent. When smaller angular scale used jointly either or constrain models, spatially-closed remain favored over their corresponding flat limits. conjunction (baryon measurements particular, experiments) have significantly more constraining power than data.
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