Mimicking dark matter in clusters through a non-minimal gravitational coupling with matter: the case of the Abell cluster A586

Details Mimicking dark matter in clusters through a non-minimal gravitational coupling with matter: the case of the Abell cluster A586 Mimicking dark matter in clusters through a non-minimal gravitational coupling with matter: the case of the Abell cluster A586

2011-11-14

arxiv.org/abs/1111.3167v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Scientific paper

In this work, one shows that a specific non-minimal coupling between the scalar curvature and matter can mimic the dark matter component of relaxed galaxy clusters. For this purpose, one assesses the Abell Cluster A586, a massive strong-lensing nearby relaxed cluster of galaxies in virial equilibrium, where direct mass estimates are possible. The total density, which generally follows a cusped profile and reveals a very small baryonic component, can be effectively described within this framework.

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