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Galactic Structures from Gravitational Radii
(Galaxies, 2018)
We demonstrate that the existence of a Noether symmetry in f (R) theories of gravity gives rise to an additional gravitational radius, besides the standard Schwarzschild one, determining the dynamics at galactic scales. ...
Fundamental Plane of Elliptical Galaxies in f(R) Gravity: The Role of Luminosity
(Atoms, 2018)
The global properties of elliptical galaxies are connected through the so-called fundamental plane of ellipticals, which is an empirical relation between their parameters: effective radius, central velocity dispersion and ...