Strong lensing and shadow of Ayon-Beato-Garcia (ABG) nonsingular black hole

被引：13

作者：

Ramadhan, H. S. ^{[1
]}

Ishlah, M. F. ^{[1
]}

Pratama, F. P. ^{[1
]}

Alfredo, I. ^{[1
]}

机构：

[1] Univ Indonesia, Dept Fis, FMIPA, Depok 16424, Indonesia

来源：

EUROPEAN PHYSICAL JOURNAL C | 2023年 / 83卷 / 06期

关键词：

TELESCOPE RESULTS. I; FIELD;

D O I：

10.1140/epjc/s10052-023-11648-y

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We study nonsingular black holes viewed from the point of view of Ayon-Beato-Garcia (ABG) nonlinear electrodynamics (NLED) and present a complete study of their corresponding strong gravitational lensing. The NLED modifies the the photon's geodesic, and our calculations show that such effect increases the corresponding photon sphere radius and image separation, but decreases the magnification. We also show that the ABG's shadow radius is not compatible with bound estimates of Sgr A* from Keck and VLTI (Very Large Telescope Interferometer). Thus, the possibility of Sgr A* being a nonsingular ABG black hole is ruled out.

引用

页数：10

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