Scalar Soliton in Newtonian Gravity Modelling Dark Matter Halos |
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Authors: | Eckehard W. Mielke Franz E. Schunck Humberto H. Peralta |
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Affiliation: | (1) Departamento de Física, Universidad Autónoma Metropolitana–Iztapalapa, Apartado Postal 55-534, C.P. 09340, México, D.F., Mexico;(2) Institut für Theoretische Physik, Universität zu Köln, 50923 Köln, Germany |
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Abstract: | Within standard Newtonian gravity, galactic dark matter is modelled by a scalar field in order to effectively modify Kepler's law. In particular, we show that a solvable toy model with a self-interaction U() borrowed from non-topological solitons produces already qualitatively correct rotation curves. Although relativistic effects in the halo are very small, we indicate corrections arising from the general relativistic formulation. |
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Keywords: | Dark matter rotation curves scalar field models |
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