6 papers
Timing Gravity with Pulsars in the Strong Field
Riccardo Della Monica, Ivan de Martino
We propose a novel approach for the timing of pulsars orbiting a supermassive black hole, which implements the fully relativistic calculations of the photon travel time into a robu…
Cosmological constraints and standard sirens forecasts for non-dynamical dark energy in Horndeski gravity
Marcello Miranda, Ruchika, Ivan De Martino +2
We investigate an analytically tractable sector of the Extended Cuscuton model, a non-dynamical dark-energy realization within the framework of viable Horndeski gravity. We focus o…
Pulsar timing in the Galactic Center
Riccardo Della Monica, Ivan de Martino
We propose a novel approach which implements the relativistic calculations of the photon travel time into a robust timing model for pulsars orbiting supermassive black holes. We de…
Constraining ultralight bosons in dwarf spheroidal galaxies with a radially varying anisotropy
Ivan De Martino
Axions, and axion-like particles, have come back into fashion in the last decades as a possible solution to the galactic-scale crisis suffered by the cold dark matter model. In the…
Constraints on metric-affine gravity black holes from the stellar motion at the Galactic Center
Ivan De Martino, Riccardo Della Monica, Diego Rubiera-Garcia
We consider a static, spherically symmetric space-time with an electric field arising from a quadratic metric-affine extension of General Relativity. Such a space-time is free of s…
The optical appearance of a nonsingular de Sitter core black hole geometry under several thin disk emissions
I. De Martino, R. Della Monica, D. Rubiera-Garcia
We consider the optical appearance under a thin accretion disk of a regular black hole with a central de Sitter core implementing far-corrections to the Schw…