Richtler, TomSalinas Venegas, Ricardo2021-01-132024-05-152024-08-282021-01-132024-05-152024-08-282011https://repositorio.udec.cl/handle/11594/3876Tesis presentada para optar al grado de Doctor en Ciencias Físicas.The first evidence of a hidden, non luminous component of the Universe came from the large discrepancy between optical and dynamical masses found in the Coma cluster by Zwicky (1933). But this finding did not produce a significant echo in the astronomical community. The alarms only turned on in the mid-70’s with studies of the dynamics of pairs of galaxies and groups that revived the stunning discrepancy between dynamical and optical masses (Einasto et al. 1974; Ostriker et al. 1974), although perhaps the most convincing piece of evidence came from the fact that the rotation curves of late-type galaxies remain flat to large radii which indicates an enclosed mass growing linearly with radius (Rubin et al. 1978; Bosma 1978).enCC BY-NC-ND 4.0 DEED Attribution-NonCommercial-NoDerivs 4.0 InternationalMateria Oscura (Astronomía)Galaxias ElípticasHalos Galácticos.Tesis