492 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Sapienza University of RomeIT122 papers
- University of Rome Tor VergataIT96 papers
- National Research CouncilLK91 papers
- Harvard UniversityUS59 papers
- Italian Institute of TechnologyIT57 papers
- International Center for Relativistic AstrophysicsIT42 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di FirenzeIT36 papers
- Institut des Hautes Études ScientifiquesFR33 papers
- Eindhoven University of TechnologyNL32 papers
- ETH ZurichCH31 papers
- Centre National de la Recherche ScientifiqueFR30 papers
- Villanova UniversityUS30 papers
35 papers · 2 filters
Effect of an arbitrary spin orientation on the quadrupolar structure of an extended body in a Schwarzschild spacetime
Donato Bini, Andrea Geralico
The influence of an arbitrary spin orientation on the quadrupolar structure of an extended body moving in a Schwarzschild spacetime is investigated. The body dynamics is described…
Gravitational self-force corrections to two-body tidal interactions and the effective one-body formalism
Donato Bini, Thibault Damour
Tidal interactions have a significant influence on the late dynamics of compact binary systems, which constitute the prime targets of the upcoming network of gravitational-wave det…
Refraction index analysis of light propagation in a colliding gravitational wave spacetime
Donato Bini, Andrea Geralico, Maria Haney
The optical medium analogy of a given spacetime was developed decades ago and has since then been widely applied to different gravitational contexts. Here we consider the case of a…
Particle dynamics and deviation effects in the field of a strong electromagnetic wave
Donato Bini, Andrea Geralico, Maria Haney +1
Some strong field effects on test particle motion associated with the propagation of a plane electromagnetic wave in the exact theory of general relativity are investigated. Two di…
Extended bodies in a Kerr spacetime: exploring the role of a general quadrupole tensor
Donato Bini, Andrea Geralico
The equatorial motion of extended bodies in a Kerr spacetime is investigated in the framework of the Mathisson-Papapetrou-Dixon model, including the full set of effective component…
Dark energy from cosmological fluids obeying a Shan-Chen non-ideal equation of state
Donato Bini, Andrea Geralico, Daniele Gregoris +1
We consider a Friedmann-Robertson-Walker universe with a fluid source obeying a non-ideal equation of state with "asymptotic freedom," namely ideal gas behavior (pressure changes d…
Friction forces in cosmological models
Donato Bini, Andrea Geralico, Daniele Gregoris +1
We investigate the dynamics of test particles undergoing friction forces in a Friedmann-Robertson-Walker (FRW) spacetime. The interaction with the background fluid is modeled by in…
The Erez-Rosen metric and the role of the quadrupole on light propagation
Donato Bini, Mariateresa Crosta, Fernando de Felice +2
The gravitational field of a static body with quadrupole moment is described by an exact solution found by Erez and Rosen. Here we investigate the role of the quadrupole in the mot…
Scattering of particles by radiation fields: a comparative analysis
Donato Bini, Andrea Geralico, Maria Haney +1
The features of the scattering of massive neutral particles propagating in the field of a gravitational plane wave are compared with those characterizing their interaction with an…
Separable geodesic action slicing in stationary spacetimes
Donato Bini, Andrea Geralico, Robert T. Jantzen
A simple observation about the action for geodesics in a stationary spacetime with separable geodesic equations leads to a natural class of slicings of that spacetime whose orthogo…
Particle scattering by a test fluid on a Schwarzschild spacetime: the equation of state matters
Donato Bini, Andrea Geralico, Sauro Succi
The motion of a massive test particle in a Schwarzschild spacetime surrounded by a perfect fluid with equation of state is investigated. Deviations from geodesic motio…
Scattering by an electromagnetic radiation field
Donato Bini, Andrea Geralico
Motion of test particles in the gravitational field associated with an electromagnetic plane wave is investigated. The interaction with the radiation field is modeled by a force te…
Effect of radiation flux on test particle motion in the Vaidya spacetime
Donato Bini, Andrea Geralico, Robert T. Jantzen +1
Motion of massive test particles in the nonvacuum spherically symmetric radiating Vaidya spacetime is investigated, allowing for physical interaction of the particles with the radi…
Spin-geodesic deviations in the Kerr spacetime
Donato Bini, Andrea Geralico
The dynamics of extended spinning bodies in the Kerr spacetime is investigated in the pole-dipole particle approximation and under the assumption that the spin-curvature force only…
Fermi coordinates in Schwarzschild spacetime: closed form expressions
Donato Bini, Andrea Geralico, Robert T. Jantzen
Fermi coordinates are constructed as exact functions of the Schwar\-zschild coordinates around the world line of a static observer in the equatorial plane of the Schwarzschild spac…
Spin-geodesic deviations in the Schwarzschild spacetime
Donato Bini, Andrea Geralico, Robert T. Jantzen
The deviation of the path of a spinning particle from a circular geodesic in the Schwarzschild spacetime is studied by an extension of the idea of geodesic deviation. Within the Ma…
The general relativistic Poynting-Robertson effect. II: A photon flux with nonzero angular momentum
Donato Bini, Andrea Geralico, Robert T. Jantzen +2
We study the motion of a test particle in a stationary, axially and reflection symmetric spacetime of a central compact object, as affected by interaction with a test radiation fie…
The effective geometry of the uniformly rotating self-gravitating polytrope
Donato Bini, Christian Cherubini, Simonetta Filippi +1
The \lq\lq effective geometry" formalism is used to study the perturbations of a perfect barotropic Newtonian self-gravitating rotating and compressible fluid coupled with gravitat…
Physical frames along circular orbits in stationary axisymmetric spacetimes
Donato Bini, Christian Cherubini, Andrea Geralico +1
Three natural classes of orthonormal frames, namely Frenet-Serret, Fermi-Walker and parallel transported frames, exist along any timelike world line in spacetime. Their relationshi…
Charged massive particle at rest in the field of a Reissner-Nordström black hole. II. Analysis of the field lines and the electric Meissner effect
Donato Bini, Andrea Geralico, Remo Ruffini
The properties of the electric field of a two-body system consisting of a Reissner-Nordström black hole and a charged massive particle at rest have recently been analyzed in the fr…
Massless field perturbations of the spinning C metric
Donato Bini, Christian Cherubini, Andrea Geralico
A single master equation is given describing spin test fields that are gauge- and tetrad-invariant perturbations of the {\it spinning C metric} spacetime representing a sou…
Strains and axial outflows in the field of a rotating black hole
Donato Bini, Fernando de Felice, Andrea Geralico
We study the behaviour of an initially spherical bunch of accelerated particles emitted along trajectories parallel to the symmetry axis of a rotating black hole. We find that, und…
Inertial effects in accelerating spacetimes
Donato Bini, Christian Cherubini, Andrea Geralico +1
The motion of test particles along circular orbits in the vacuum metric is studied in the Frenet-Serret formalism. Special orbits and corresponding intrinsically defined geomet…
Strains in General Relativity
Donato Bini, Fernando de Felice, Andrea Geralico
The definition of relative accelerations and strains among a set of comoving particles is studied in connection with the geometric properties of the frame adapted to a "fiducial ob…