![Stellar mass vs. velocity dispersion relation follow the Virial relation. Stellar mass vs. velocity dispersion relation showing that stellar systems, over 7 orders of magnitude in mass, follow the Virial relation. Small bulges and high redshift red nuggets also follows the relation indicating a common origin.](/sites/default/files/styles/crop_square_2_2_to_320px/public/images/news/mendezabreu_f.jpeg?h=69be794d&itok=_2NZ5YJ3)
The “Lambda Cold Dark Matter” (CDM) cosmological model is the current theory credited for reproducing the physics responsible for the formation and evolution of large-scale galactic systems in an accelerated expanding universe. In this context, the halos of CDM collapse and convert their energy reaching a state of equilibrium, allowing the formation of galaxies when the matter begins to cool. From an observational point of view, the behaviour of the luminous matter (stars and gas) is very different from that of dark matter. However, there are empirical relationships that reflect the
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