Corpus ID: 237940496

A Morse-theoretical analysis of lensing in wormhole spacetimes

@inproceedings{Halla2021AMA,
  title={A Morse-theoretical analysis of lensing in wormhole spacetimes},
  author={Mourad Halla and Volker Perlick},
  year={2021}
}
We consider a class of stationary and axisymmetric wormhole spacetimes that is closely related to, but not identical with, the class of Teo wormholes. We fix a point p (observation event) and a timelike curve γ (worldline of a light source), and we characterize the set of all past-oriented lightlike geodesics from p to γ. As any such geodesic corresponds to an image of the light source on the observer’s sky, this allows us to investigate the lensing properties of the wormhole. As a main result… Expand

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