Research Article

Null Geodesics and Gravitational Lensing in a Nonsingular Spacetime

Figure 2

Behavior of the effective potential as a function of with different values of .
(a) The nonsingular black hole
(b) The extremal nonsingular black hole
(c) The weakly nonsingular spacetime
(d) The marginally nonsingular spacetime
(e) The strongly nonsingular spacetime