Figure 9:
The graph shows the closest approach
𝑟
𝑜
for the effective geometry of the Born-Infeld black hole as a function of the nonlinear parameter
𝛽
. Here,
𝐷
is kept fixed at
4
.
5
6
. Also,
𝑀
=
1
.
0
6
4
0
5
,
𝑄
=
1
.
