The Erez–Rosen metric and the role of the quadrupole on light propagation
The Erez–Rosen metric and the role of the quadrupole on light propagation
The gravitational field of a static body with the quadrupole moment is described by an exact solution found by Erez and Rosen. Here, we investigate the role of the quadrupole in the motion, deflection and lensing of a light ray in the above metric. The standard lensing observables such as …