65 citations · 306 across the 18 of their papers we have counts for
18 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…
On relativistic observables in black bounce spacetimes
Víctor Ovejero-Bermúdez, Álvaro de la Cruz-Dombriz, Riccardo Della Monica
We investigate the phenomenology of black bounce spacetimes through a combined analytical and numerical study of relativistic observables associated with both time-like and null ge…
Relativistic effects in extreme-mass-ratio inspirals within scalar clouds: Eccentric and inclined orbits
Qi-Xuan Xu, Richard Brito, Riccardo Della Monica +2
We study extreme-mass-ratio inspirals (EMRIs) evolving in a scalar cloud environment that may form through superradiant instabilities, using a fully relativistic perturbative frame…
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…
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…
Explaining the oblate morphology of dwarf spheroidals with Wave Dark Matter perturbations
Riccardo Della Monica, Ivan de Martino, Tom Broadhurst
We investigate whether the oblate, spheroidal morphology of common dwarf spheroidal galaxies (dSph) may result from the slow relaxation of stellar orbits within a halo of Wave Dark…
Constraining an Einstein-Maxwell-dilaton-axion black hole at the Galactic Center with the orbit of the S2 star
Rebeca Fernández Fernández, Riccardo Della Monica, Ivan de Martino
We derive new constraints on the dilaton parameter appearing in the spherically-symmetric black hole solution of Einstein-Maxwell-dilaton-axion gravity, by studying the geodesic mo…
Testing space-time geometries and theories of gravity at the Galactic Center with pulsar's time delay
Riccardo Della Monica, Ivan de Martino, Mariafelicia de Laurentis
We developed a numerical methodology to compute the fully-relativistic propagation time of photons emitted by a pulsar in orbit around a massive compact object, like the supermassi…
Bounding the mass of ultralight bosonic Dark Matter particles with the motion of the S2 star around Sgr A*
Riccardo Della Monica, Ivan de Martino
Dark matter is undoubtedly one of the fundamental, albeit unknown, components of the standard cosmological model. The failure to detect WIMPs, the most promising candidate particle…
Response to: Comment on "Orbital precession of the S2 star in scalar-tensor-vector gravity"
Riccardo Della Monica, Ivan de Martino, Mariafelicia de Laurentis
The explicit derivation for the orbital precession of the S2 star in the Galactic Center in the Scalar-Tensor-Vector Gravity is discussed and compared with previous research. The t…
Testing Horndeski gravity with S2 star orbit
Riccardo Della Monica, Ivan de Martino, Daniele Vernieri +1
We have explored a completely new and alternative way to restrict the parameter space of Horndeski theory of gravity. Using its Newtonian limit, it is possible to test the theory a…
Are nonsingular black holes with super-Planckian hair ruled out by S2 star data?
M. Cadoni, M. De Laurentis, I. De Martino +3
We propose a novel nonsingular black-hole spacetime representing a strong deformation of the Schwarzschild solution with mass by an additional hair , which may be hierarc…
The Galactic Center as a laboratory for theories of gravity and dark matter
Mariafelicia de Laurentis, Ivan De Martino, Riccardo Della Monica
The Galactic Center of the Milky Way, thanks to its proximity, allows to perform astronomical observations that investigate physical phenomena at the edge of astrophysics and funda…
Constraining MOdified Gravity with the S2 Star
Riccardo Della Monica, Ivan de Martino, Mariafelicia de Laurentis
We have used publicly available kinematic data for the S2 star to constrain the parameter space of MOdified Gravity. Integrating geodesics and using a Markov Chain Monte Carlo algo…
Narrowing the allowed mass range of ultralight bosons with the S2 star
Riccardo Della Monica, Ivan de Martino
It is well known that N-body simulations of ultralight bosons show the formation of a solitonic dark matter core in the innermost part of the halo. The scale length of such a solit…
-gravity after the detection of the orbital precession of the S2 star around the Galactic centre massive black hole
Ivan de Martino, Riccardo della Monica, Mariafelicia de Laurentis
The GRAVITY Collaboration achieved the remarkable detection of the orbital precession of the S2 star around the Galactic centre supermassive black hole, providing yet another proof…
Orbital precession of the S2 star in Scalar-Tensor-Vector-Gravity
Riccardo Della Monica, Ivan de Martino, Mariafelicia de Laurentis
We have obtained the first constraint of the parameter space of Scalar-Tensor-Vector-Gravity using the motion of the S2-star around the supermassive black hole at the centre of the…