期刊
MODERN PHYSICS LETTERS A
卷 23, 期 13, 页码 953-962出版社
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0217732308025498
关键词
gravitational lensing; wormhole
We have investigated the gravitational lensing by two wormholes, viz., Janis-Newman-Winnicour (JNW) wormhole and Ellis wormhole. The deflection angles in the strong field limit are 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 image due to the absence of its photon sphere.
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