Recovering flat rotation curves and galactic dynamics from f(R)-gravity

Abstract

The so-called f (R)-gravity addresses issues like dark energy and dark matter from the point of view of gravitational field instead of requiring new material ingredients. In particular, several self-gravitating structures, like spiral and elliptical galaxies, can be consistently described, in the weak-field limit regime, due to the presence of Yukawa-like corrections in the Newtonian potential. We give here some examples related to the observations.