Strong gravitational lensing for the photons coupled to a Weyl tensor in a Kerr black hole spacetime
Strong gravitational lensing for the photons coupled to a Weyl tensor in a Kerr black hole spacetime
We present firstly equation of motion for the photon coupled to Weyl tensor in a Kerr black hole spacetime and then study further the corresponding strong gravitational lensing. We find that black hole rotation makes propagation of the coupled photons more complicated, which brings some new features for physical quantities …