Gravitational lensing by wormholes

Details Gravitational lensing by wormholes Gravitational lensing by wormholes

2008-06-25

arxiv.org/abs/0806.4059v1

Mod.Phys.Lett.A23:953-962,2008

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

13 pages, 6 figures

Scientific paper

10.1142/S0217732308025498

We have investigated the gravitational lensing by two wormholes, viz., Janis-Newman-Winnicour (JNW) wormhole and Ellis wormhole. The deflection angle in the strong field limit is calculated and various lens parameters of two wormholes are compared. It is shown that the JNW wormhole exhibits the relativistic images, while the Ellis wormhole does not have any relativistic images due to the absence of its photon sphere.

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