Gravitational Lensing of Charged Ayon-Beato-Garcia Black Holes and Nonlinear Effects of Maxwell Fields

Table 2

Solutions of the effective photon sphere equation (29) for .

,	,	,	,	,	,
1, 2.847	7, 24.705	13, 46.563	19, 68.421	25, 90.279	31, 112.137
2, 6.490	8, 28.348	14, 50.206	20, 72.064	26, 93.922	32, 115.780
3, 10.133	9, 31.991	15, 53.849	21, 75.707	27, 97.565	33, 119.423
4, 13.776	10, 35.634	16, 57.492	22, 79.350	28, 101.208	34, 123.066
5, 17.419	11, 39.277	17, 61.135	23, 82.993	29, 104.851	35, 126.709
6, 21.062	12, 42.920	18, 64.778	24, 86.636	30, 108.494	36, 130.352