3 papers
astro-ph.CO2017
Conformal gravity: light deflection revisited and the galactic rotation curve failure
M. C. Campigotto, A. Diaferio, L. Fatibene
We show how Conformal Gravity (CG) has to satisfy a fine-tuning condition to describe the rotation curves of disk galaxies without the aid of dark matter. Interpreting CG as a gaug…
astro-ph.CO2016
Strong gravitational lensing in gravity
M. C. Campigotto, A. Diaferio, X. Hernandez +1
We discuss the phenomenology of gravitational lensing in the purely metric gravity, an gravity where the action of the gravitational field depends on the s…
gr-qc2015
Generally Covariant vs. Gauge Structure for Conformal Field Theories
M. Campigotto, L. Fatibene
We introduce the natural lift of spacetime diffeomorphisms for conformal gravity and discuss the physical equivalence between the natural and gauge natural structure of the theory.…