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

2007/03/31 by Orfeu Bertolami, O. Bertolami, Francisco G. Pedro +3 · 7 citations
Physics and Astronomy · #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Relativity and Gravitational Theory #astro-ph #gr-qc #hep-ph

paper · pdf · doi:10.1016/j.physletb.2007.08.046

published as Phys.Lett.B654:165-169,2007 · Version to appear at Physics Letters B. 5 pages, 1 Figure

arxiv created 2007/09/07 · openalex publication_date 2007/09/21 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01

Abstract

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.

Citations

• Dark Energy as a Born-Infeld Gauge Interaction Violating the Equivalence Principle

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