Gravitational lensing by a regular black hole

Abstract

In this paper, we study a regular Bardeen black hole as a gravitational lens. We find the strong deflection limit for the deflection angle, from which we obtain the positions and magnifications of the relativistic images. As an example, we apply the results to the particular case of the supermassive black hole at the center of our galaxy.

10 pages, 4 figures. v2: Improved version, new references added

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