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Fine-structure constant constraints on late-time dark energy transitions

Martins, C. J. A. P.; Prat Colomer, M.

We use recent astrophysical and local tests of the stability of the fine-structure constant, α, to constrain a particular phenomenological but physically motivated class of models in which the dark energy equation of state can undergo a rapid transition at low redshifts, perhaps associated with the onset of the acceleration phase. We set constrain…