SNe Data Analysis in Variable Speed of Light Cosmologies without Cosmological Constant

Abstract

In this work, we aim to show the possibilities of the variable speed of light (VSL) theory in explaining the type Ia supernovae observations without introducing dark energy. The speed of light is assumed to be scale factor dependent, which is the most popular assumption in VSL theory. We show the modified calculation of the distance modulus, and the validity of the redshift-scale factor relation in VSL theory. Three different models of VSL are tested SNe data-sets with proper constraints on the model parameters. The comparison of the three models and flat $\Lambda$CDM in distance modulus is showed. Some basic problems and the difficulties of the confirmation of the VSL theory are also discussed

arXiv comment9ps,9figs

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Cited by in corpus (8)

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• Probing the constancy of the speed of light with future galaxy survey: the case of SKA and Euclid
• Measuring the speed of light with cosmological observations: current constraints and forecasts
• Dilaton-induced variations in Planck constant and speed of light: An alternative to Dark Energy
• A mechanism to generate varying speed of light via Higgs-dilaton coupling: Theory and cosmological applications
• New analysis of SNeIa Pantheon Catalog: Variable speed of light as an alternative to dark energy
• A model-independent test of speed of light variability with cosmological observations