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arXiv · 1502.06912

Scalar perturbations in cosmological models with dark energy - dark matter interaction

Maxim Eingorn·Claus Kiefer
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Abstract

Scalar cosmological perturbations are investigated in the framework of a model with interacting dark energy and dark matter. In addition to these constituents, the inhomogeneous Universe is supposed to be filled with the standard noninteracting constituents corresponding to the conventional $Λ$CDM model. The interaction term is chosen in the form of a linear combination of dark sector energy densities with evolving coefficients. The methods of discrete cosmology are applied, and strong theoretical constraints on the parameters of the model are derived. A brief comparison with observational data is performed.

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Maxim Eingorn, Claus Kiefer. 2015-07-23. Scalar perturbations in cosmological models with dark energy - dark matter interaction. https://doi.org/10.1088/1475-7516%2F2015%2F07%2F036

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