618 citations · 935 across the 19 of their papers we have counts for
8 papers · 2 filters
Observer-dependent optical properties of stationary axisymmetric spacetimes
Donato Bini, Fernando de Felice, Andrea Geralico
The world lines of null particles admit arbitrary parametrizations. In the presence of a family of observers one may introduce along a null world line an extension of the so-called…
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…
Accelerated orbits in black hole fields: the static case
Donato Bini, Fernando de Felice, Andrea Geralico
We study non-geodesic orbits of test particles endowed with a structure, assuming the Schwarzschild spacetime as background. We develop a formalism which allows one to recognize th…
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…
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…
Spin precession along circular orbits in the Kerr spacetime: the Frenet-Serret description
Donato Bini, Fernando de Felice, Andrea Geralico +1
The circular motion of spinning massive test particles in the equatorial plane of a rotating black hole is investigated in the case in which the components of the spin tensor are a…
Spinning test particles in Weyl spacetimes
Donato Bini, Fernando de Felice, Andrea Geralico +1
The motion of spinning test particles along circular orbits in static vacuum spacetimes belonging to the Weyl class is discussed. Spin alignment and coupling with background parame…
Charged spinning particles on circular orbits in the Reissner-Nordström spacetime
Donato Bini, Fernando de Felice, Andrea Geralico
The behaviour of charged spinning test particles moving along circular orbits in the equatorial plane of the Reissner-Nordström spacetime is studied in the framework of the Dixon-S…