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We use Pantheon Type Ia supernova (SN Ia) apparent magnitude, DES-3yr binnedSN Ia apparent magnitude, Hubble parameter, and baryon acoustic oscillationmeasurements to constrain six spatially flat and non-flat cosmological models.These sets of data provide mutually consistent cosmological constraints in thesix cosmological models we study. A joint analysis of these data sets providesmodel-independent estimates of the Hubble constant, $H_0=68.8\pm1.8\ \rm{km \s^{-1} \ Mpc^{-1}}$, and the non-relativistic matter density parameter,$\Omega_{\rm m_0}=0.294\pm0.020$. Although the joint constraints prefer milddark energy dynamics and a little spatial curvature, they do not rule out darkenergy being a cosmological constant and flat spatial hypersurfaces. We alsoadd quasar angular size and H II starburst galaxy measurements to the combineddata set and find more restrictive constraints.

monthly notices of the royal astronomical society

Using Pantheon and DES supernova, baryon acoustic oscillation, and  Hubble parameter data to constrain the Hubble constant, dark energy dynamics,  and spatial curvature