Constraints on interacting dynamical dark energy and a new test for $\Lambda$CDM
General Relativity and Quantum Cosmology
2019-08-20 v2 Cosmology and Nongalactic Astrophysics
Abstract
We consider a generic description of interacting dynamical Dark Energy, characterized by an equation of state with a time dependent coefficient , and which may interact with both radiation and matter. Without referring to any particular cosmological model, we find a differential equation which must be satisfied by and involving the function which describes the interaction between Dark Energy and the other cosmological fluids. The relation we find represents a constraint for various models of interacting dynamical Dark Energy. In addition, an observable is proposed, depending on kinematic variables and on density parameters, which may serve as a new test for CDM.
Cite
@article{arxiv.1812.11176,
title = {Constraints on interacting dynamical dark energy and a new test for $\Lambda$CDM},
author = {Marco Bonici and Nicola Maggiore},
journal= {arXiv preprint arXiv:1812.11176},
year = {2019}
}
Comments
final version, published on EPJC