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arxiv: astro-ph/0309490 · v1 · submitted 2003-09-17 · 🌌 astro-ph

The GraS Hypothesis: a Model for Dark Matter-Baryons Gravitational Interaction

Federico Piazza (1 , 2) , Christian Marinoni (3) ((1) Dip. di Fisica , Universita` di Milano Bicocca , Milano , Italy (2) Institute of Cosmology , Gravitation , University of Portsmouth
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UK (3) Laboratoire d'Astrophysique de Marseille Marseille France)
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classification 🌌 astro-ph
keywords gravitationaldarkgrashypothesisinteractionaccordingastrophysicalbasis
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According to the gravitational suppression (GraS) hypothesis the gravitational interaction between exotic (dark) and standard (visible) matter is suppressed below the kpc scales. We review the phenomenological motivations at the basis of this idea and its formal implementation by means of a Yukawa contribution to the usual Newtonian potential. We also discuss a class of astrophysical phenomena that may help in testing this scenario.

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