Publication date: Jul 2018
Abstract:
We discuss the photon motion in the framework of general relativity
coupled to non-linear electrodynamics. Photons no longer follow the
null-geodesics of the spacetime but rather null-geodesics of associated
effective metric. Here we compare structure of circular geodesics and
time-delays of neutrinos in Bardeen spacetimes with those of photons in
effective geometry. We also discuss construction the Keplerian disks
images in the Bardeen spacetimes and compare them with the images of
Keplerian disks in RN spacetime.
Authors:
Stuchlik, Zdenek;