3 papers
gr-qc2026
Circular stable orbits in realistic static and spherically-symmetric spacetimes
Néstor Rivero González, Ãlvaro de la Cruz Dombriz, Gonzalo J. Olmo
We investigate the geodesic structure of realistic static and spherically symmetric spacetimes embedding neutron stars in metric gravity, focusing on the quadratic Starobins…
gr-qc2025
Gravitational waves in Palatini gravity for a non-minimal geometry-matter coupling
Flavio Bombacigno, Fabio Moretti, Gonzalo J. Olmo
We discuss the propagation of gravitational waves over a non-Riemannian spacetime, when a non-minimal coupling between the geometry and matter is considered in the form of contract…
gr-qc2025
Analytical solutions for Maxwell-scalar system on radially symmetric spacetimes
I. Andrade, D. Bazeia, M. A. Marques +2
We investigate Maxwell-scalar models on radially symmetric spacetimes in which the gauge and scalar fields are coupled via the electric permittivity. We find the conditions that al…