H0 and Odds on Cosmology
A. H. Jaffe
Abstract
Recent observations by the Hubble Space Telescope of Cepheids in the Virgo cluster imply a Hubble Constant H0=8017\ km/sec/Mpc. We attempt to clarify some issues of interpretation of these results for determining the global cosmological parameters Ω and Λ. Using the formalism of Bayesian model comparison, the data suggest a universe with a nonzero cosmological constant Λ>0, but vanishing curvature: Ω+Λ=1.
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