4 papers
Analytic Kerr black hole lensing for equatorial observers in the strong deflection limit
V. Bozza, F. De Luca, G. Scarpetta +1
In this paper we present an analytical treatment of gravitational lensing by Kerr black holes in the limit of very large deflection angles, restricting to observers in the equatori…
On gravito-magnetic time delay by extended lenses
M. Sereno
Gravitational lensing by rotating extended deflectors is discussed. Due to spin, corrections on image positions, caustics and critical curves can be significant. In order to obtain…
Constraints on a quintessence model from gravitational lensing statistics
M. Sereno
Constraints on an exact quintessence scalar-field model with an exponential potential are derived from gravitational lens statistics. An exponential potential can account for data…
Gravitational lensing by stars with angular momentum
M. Sereno
Gravitational lensing by spinning stars, approximated as homogeneous spheres, is discussed in the weak field limit. Dragging of inertial frames, induced by angular momentum of the…