Dark energy–dark matter interaction and putative violation of the equivalence principle from the Abell cluster A586

O. Bertolami, F. Gil Pedro, M. Le Delliou
2007 Physics Letters B  
We show that the Abell Cluster A586 exhibits evidence of the interaction between dark matter and dark energy and argue that this interaction implies a violation of the Equivalence Principle. This violation is found in the context of two different models of dark energy-dark matter interaction. We also argue, based on the spherical symmetry of the Abell Cluster A586 that skewness is not the most general quantity to test the Equivalence Principle.
doi:10.1016/j.physletb.2007.08.046 fatcat:ni5eqwxkojcbfoap3fchwbgjmi