Prefer a chat interface with context about you and your work?
Kerr black hole shadows from axion-photon coupling
Abstract We have investigated the motion for photons in the Kerr black hole spacetime under the axion-photon coupling. The birefringence phenomena arising from the axion-photon coupling can be negligible in the weak coupling approximation because the leading-order contributions to the equations of motion come from the square term of the …