Central surface density of dark matter agrees with the prediction of a new theory of gravity

edited by Lisa Lock , reviewed by Robert Egan

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Add as preferred source Credit: Unsplash/CC0 Public Domain A researcher from Sejong University has used a new theory of gravity proposed by Erik Verlinde to predict the observed central surface density of dark matter. The study was published in Physics of the Dark Universe on Sept. 20.

Since the 1970s, the rotation speeds of galaxies have been regarded as important observational evidence for the existence of dark matter. Stars in the outer regions of galaxies move much faster than would be expected if Newtonian gravity were applied to visible matter alone. In mainstream astronomy, this phenomenon is explained by assuming that galaxies are surrounded by invisible dark matter that provides additional gravitational attraction.