2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/13301An exact, axially symmetric solution to the Einstein-Klein-Gordon field equations is employed to model the dark matter in spiral galaxies. The extended rotation curves from a previous analysis are used to fit the model and a very good agreement is found. It is argued that, although our model possesses three parameters to be fitted, it is better than the non-relativistic alternatives in the sense that it is not of a phenomenological nature, since the dark matter would consist entirely of a scalar field.18 pages, 2 tables, 1 ps figure, processed with AASTeX; appendix added; references updated and some other added; a more robust versionAstrophysicsGeneral Relativity and Quantum CosmologyHigh Energy Physics - Theorytext