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Radial acceleration relation from symmetron fifth forces (1610.07529v3)
Published 24 Oct 2016 in astro-ph.CO, astro-ph.GA, gr-qc, and hep-ph
Abstract: We show that the radial acceleration relation for rotationally-supported galaxies may be explained, in the absence of cold dark matter, by a non-minimally coupled scalar field, whose fifth forces are partially screened on galactic scales by the symmetron mechanism. In addition, we show that sufficient energy is stored in the symmetron field to explain the dynamic stability of galactic disks.
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