Journal
UNIVERSE
Volume 5, Issue 5, Pages -Publisher
MDPI
DOI: 10.3390/universe5050115
Keywords
gravitational lensing; weak deflection; dark matter; Gauss-Bonnet theorem; black hole; wormhole
Funding
- Comision Nacional de Ciencias y Tecnologia of Chile through FONDECYT [3170035]
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In this research, we used the Gibbons-Werner method (Gauss-Bonnet theorem) on the optical geometry of a black hole and wormhole, extending the calculation of weak gravitational lensing within the Maxwell's fish eye-like profile and dark-matter medium. The angle is seen as a partially topological effect, and the Gibbons-Werner method can be used on any asymptotically flat Riemannian optical geometry of compact objects in a dark-matter medium.
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