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arXiv · 1711.01730

Gravitational lensing by exotic objects

Hideki Asada
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Abstract

This paper reviews a phenomenological approach to the gravitational lensing by exotic objects such as the Ellis wormhole lens, where exotic lens objects may follow a non-standard form of the equation of state or may obey a modified gravity theory. A gravitational lens model is proposed in the inverse powers of the distance, such that the Schwarzschild lens and exotic lenses can be described in a unified manner as a one parameter family. As observational implications, the magnification, shear, photo-centroid motion and time delay in this lens model are discussed.

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Hideki Asada. 2017-11-06. Gravitational lensing by exotic objects. https://doi.org/10.1142/s0217732317300312

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