Dark Energy-Dark Matter Interaction from the Abell Cluster A586 and violation of the Equivalence Principle

Morgan Le Delliou (1) , O. Bertolami (2, 3) , F. Gil Pedro (2)

1 CAAUL - Centro de Astronomia e Astrofísica da Universidade de Lisboa
2 DFA/FCUP - Departamento de Física e Astronomia [Porto]
3 Centro de Física dos Plasmas

We find that the Abell Cluster A586 exhibits evidence of the interaction between dark matter and dark energy and argue that this interaction suggests evidence of violation of the Equivalence Principle. This violation is found in the context of two different models of dark energy-dark matter interaction.

Mots clés: Cosmology; dark matter; dark energy; Abell Cluster A586; Equivalence principle

Domaines: Cosmologie et astrophysique extra-galactique [astro-ph.CO]; Astrophysique [astro-ph]; Relativité Générale et Cosmologie Quantique [gr-qc]; Physique des Hautes Energies - Théorie [hep-th]

Morgan Le Delliou, O. Bertolami, F. Gil Pedro. Dark Energy-Dark Matter Interaction from the Abell Cluster A586 and violation of the Equivalence Principle. 13th International Symposium on PArticles, Strings and COSmology, PASCOS-07, Jul 2007, Imperial College, London, France. ⟨hal-00172399⟩