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Cosmological Parameters: Where are We?
Astrophysics and Space Science, 2004The present-day large increase of the amount of data relevant to cosmology, as well as their increasing accuracy, leads to the idea that the determination of cosmological parameters has been achieved with a rather good precision, may be of the order of 10%. There is a large consensus around the so-called concordance model. Indeed this model does fit an
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Variation of parameters in cosmology
Annals of Physics, 1980Abstract Parameters which appear in the solutions of the dynamical equations of spatially homogeneous cosmology or in the dynamical equations themselves are subject to algebraic relations imposed by the constraint equations, i.e., are confined to a constraint hypersurface in parameter space.
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Unveiling the Universe with emerging cosmological probes
Living Reviews in Relativity, 2022Lorenzo Amati +2 more
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Cosmological Parameters of the Universe
1989A primary goal of observational cosmology is the measurement of the parameters H0, q0, Ω0, Λ0 and T0 which characterize a Friedmann model of the universe. This article compares and reviews recent work in this field, with emphasis on the Hubble constant H0, that describes the expansion rate at the present epoch.
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Relaxing cosmological tensions with a sign switching cosmological constant
Physical Review D, 2021Özgur Akarsu, Emre Özülker
exaly